From: https://watchers.news/category/space-weather/geomagnetic-storms/
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CME hits Earth, sparking G2 – Moderate geomagnetic storm
A coronal mass ejection (CME) produced by a large filament eruption at 05:21 UTC on April 11, 2022 reached Earth around midnight UTC on April 14, sparking G2 – Moderate geomagnetic storm.
G3 – Strong geomagnetic storm in progress, G3 or greater – Strong to Extreme warning in effect
An equatorial, negative polarity coronal hole high speed stream (CH HSS) coupled with waning coronal mass ejection (CME) influence produced a G3 – Strong geomagnetic storm conditions early April 10, 2022. Conditions could further escalate and even reach G4 – Strong or G5 – Extreme conditions.
40 SpaceX Starlink satellites lost after geomagnetic storm hits Earth
A geomagnetic storm affecting Earth on Friday, February 4, 2022, significantly impacted 40 of 49 SpaceX Starlink satellites launched to low Earth orbit from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florida on February 3. Preliminary analysis shows up…
G2 – Moderate geomagnetic storm watch in effect
A G2 – Moderate geomagnetic storm watch is in effect for February 2, 2022, after a long-duration M1.1 solar flare produced an asymmetric, full-halo coronal mass ejection (CME) at 23:32 UTC on January 29. The CME is expected to reach Earth late February 1 or early…
CH HSS sparks G2 – Moderate geomagnetic storm
Our planet entered a stream of fast-moving solar wind on January 18, 2022, sparking G2 – Moderate geomagnetic storm. A slightly enhanced solar wind environment is anticipated today as CH HSS effects taper, followed by a minor enhancement due to glancing blow effects…
Series of CMEs impact Earth, sparking G3 – Strong geomagnetic storming
A coronal mass ejection (CME) produced by the long-duration M1.7 solar flare1 at 03:01 UTC on November 2, 2021, reached Earth at 19:57 UTC on November 3, sparking G3 – Strong geomagnetic storming. The CME overtook and merged with at least one, possibly two or more,…
Series of CMEs expected to impact Earth, G2 – Moderate geomagnetic storm watch in effect
A series of coronal mass ejections (CMEs) produced by Regions 2887 and 2891 over the past couple of days will likely impact Earth by late November 3 to early November 4, causing additional enhancements to the solar wind environment already enhanced due to coronal…
G3 – Strong geomagnetic storm watch in effect for October 30 after major X1.0 solar flare
Solar activity reached high levels on October 28, 2021, with a pair of M-class flares from geoeffective AR 2887 at 07:40 and 10:28 UTC, followed by a major X1.0 flare at 15:35 UTC which generated an Earth-directed coronal mass ejection (CME). As a result, a G3 -…
Modest CME glancing blow from May 28 long-duration solar flare
A small part of coronal mass ejection (CME) produced by a long-duration C-class solar flare on May 28 hit Earth on June 2, 2021, barely disturbing Earth’s magnetic field. Solar wind parameters are likely to become slightly enhanced due to the influence of a…
Geomagnetic storm watch in effect for May 18
NOAA SWPC forecasters have issued a geomagnetic storm watch for May 18, 2021, after a pair of coronal mass ejections (CMEs) launched from the Sun on May 13 and 14. Enhanced solar wind parameters are expected on May 17 due to the influence of a negative polarity…
CME impacts Earth, sparking G3 – Strong geomagnetic storm
A coronal mass ejection (CME) produced by a filament eruption around 10:00 UTC on May 9, 2021, has reached Earth at 06:43 UTC on May 12. G3 – Moderate geomagnetic storm levels were observed at 12:59 UTC. The CME arrived at the DSCOVR spacecraft at 05:47 UTC. Solar…
G2 – Moderate geomagnetic storm watch in effect for April 25
A partial halo Coronal Mass Ejection (CME) produced by the C3.8 solar flare from Region 2816 at 04:35 UTC on April 22 is heading toward Earth and is expected to arrive on April 25. As a result, a G2 – Moderate geomagnetic storming is expected. This CME has been…
Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm
Earth is under the influence of negative polarity coronal hole high speed stream (CH HSS) over the past 24 hours, sparking G2 geomagnetic storming. The source is a polar connected coronal hole located in the Sun’s southern hemisphere. Geomagnetic K-index of 5…
Negative polarity CH HSS sparks G1 – Minor geomagnetic storm and auroras in the lower 48
Earth is under the influence of a negative polarity coronal hole high speed stream, sparking G1 – Minor geomagnetic storm and auroras as low as Michigan and Wisconsin, U.S. Enhanced solar wind parameters were observed on March 13, 2021, due to co-rotating…
Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm
Earth is under the influence of a negative polarity coronal hole high speed stream (CH HSS) on March 1, 2021, sparking G1 – Minor and G2 – Moderate geomagnetic storming. Solar wind speed started increasing late February 28, from 369 km/s at 22:00 UTC to 521 km/s at…
Slow-moving transient sparks vivid auroras around the Arctic circle
Solar wind parameters reflected the arrival of a slow-moving transient at approximately 08:23 UTC on January 11, 2021. At this time, density, temperature, and wind speed increased, sparking vivid auroras around the Arctic circle. The cause of the shock wave might…
Unsettled to active geomagnetic field levels expected, G1 geomagnetic storm watch in effect
Unsettled to active geomagnetic field levels are possible on January 5, 2021, due to the onset of an anticipated Solar Sector Boundary Crossing (SSBC) followed by coronal hole influence late in the day. G1 – Minor geomagnetic storm conditions are likely on January 6…
G1 – Minor geomagnetic storm watch in effect for December 23 and 24
A series of positive polarity, polar connected, coronal hole high speed streams (CH HSS) are expected to affect our planet in the days ahead, resulting in G1 – Minor geomagnetic storming. The area of impact is primarily poleward of 60 degrees Geomagnetic Latitude….
CME impact detected, G3 – Strong geomagnetic storm watch remains but confidence diminishing
A geomagnetic sudden impulse — CME produced by a long-duration C7.4 solar flare on December 7, was observed at DSCOVR satellite at the L1 point at 01:32 UTC on December 10. The total field reached 16 nT while wind speeds topped out near 571 km/s, producing a period…
CH HSS sparks G1 – Minor geomagnetic storm, G2 – Moderate warning
A recurrent, positive polarity coronal hole high speed stream (CH HSS) is affecting our planet since September 23, sparking active to G1 – Minor geomagnetic storm conditions. A G2 – Moderate geomagnetic storm warning was issued at 08:07 UTC today. In 24 hours to…
Series of coronal holes spark G1 – Minor geomagnetic storming
Our planet is under the influence of a series of coronal holes since August 25, 2020, sparking unsettled to G1 – Minor geomagnetic storm conditions. The effect is expected to continue through at least September 2. G1 – Minor geomagnetic storm threshold was first…
G1 – Minor geomagnetic storm in progress
A negative polarity, southern crown coronal hole extension has moved into a geoeffective position enhancing the solar wind environment. Unsettled levels are expected on April 21 as high speed stream (HSS) effects persist. By late April 22 (UTC), a positive polarity…
Rare, vivid blue auroras seen over Norway’s Lofoten Islands
Rare, vivid blue auroras were seen over the night sky of Norway’s Lofoten Islands on Tuesday, February 18, 2020. Photographer Matthew Steinberg captured the majestic view, which he was able to finally witness after an entire day of snow, sleet, and heavy winds….
Unsettled geomagnetic field due to CH HSS influences
Solar wind parameters in 24 hours ending 12:30 UTC today were indicative of a slightly enhanced and disturbed interplanetary magnetic field (IMF) due to weak coronal hole high speed stream (CH HSS) influences. Total IMF strength was variable, but steadily increased…
Earth under the influence of positive polarity CH HSS, G2 – Moderate geomagnetic storm
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS). This is causing G1 – Minor to G2 – Moderate geomagnetic storming. Solar wind parameters were at background levels until about 06:00 UTC on October 24 when co-rotating…
G1 – Minor Geomagnetic Storm Watch in effect for October 24 and 25
A recurrent, positive polarity coronal hole high speed stream (CH HSS) is anticipated to rotate into an Earth-connected position on October 24. As a result, a G1 – Minor Geomagnetic Storm Watch is in effect for Thursday and Friday, October 24 and 25, 2019. A…
Enhanced solar wind environment after glancing blow from a slow-moving CME
Solar wind parameters over the past 24 hours were indicative of enhanced solar wind environment, likely caused by a combination of a glancing blow from a slow-moving Coronal Mass Ejection and influences of a negative polarity CH HSS. Total IMF strength was at 5 to 6…
5 Earth-directed CMEs, G3 – Strong geomagnetic storm
A several degree long solar filament south of the Region 2741 disappeared by approximately 15:14 UTC on May 13, 2019. Initial analysis suggests an Earth-directed component is likely with this Coronal Mass Ejection (CME). This is the fifth Earth-directed CME since…
Negative polarity CH HSS sparks geomagnetic storming
An isolated, negative polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet on February 27 and 28, 2019, causing isolated periods of geomagnetic storming. Solar winds over the past 24 hours were indicative of an anticipated Solar Sector Boundary…
Negative polarity CH HSS sparks G1 – Minor geomagnetic storming
A large negative polarity coronal hole is affecting our planet, causing G1 – Minor geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was reached at 01:37 UTC, January 5, 2019. Solar wind parameters, as measured by the DSCOVR…
Positive polarity coronal hole high speed stream sparks geomagnetic storm
A positive polarity coronal hole high speed stream (CH HSS) is affecting our planet since late December 27, sparking G1 – Minor geomagnetic storm. Periods of active conditions are likely through December 29 followed by quiet to unsettled activity on December 30…
CH HSS sparks G2 – Moderate geomagnetic storm
Our planet is under the influence of a positive polarity Coronal Hole High Speed Stream (CH HSS) over the past 24 hours. Geomagnetic storms reaching G2 – Moderate levels were registered November 5. Solar wind parameters reflected the passage of a Solar Sector…
Coronal hole high speed stream sparks geomagnetic storm
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) on October 7 and 8, 2018. G1 – Minor geomagnetic storm conditions were observed at 16:22 UTC and 20:42 UTC on October 7, 2018. A G2 warning has been issued and is valid until…
Positive polarity CH HSS sparks geomagnetic storming
A G2 – Moderate geomagnetic storm watch has been issued for September 11, 2018 due to the onset of positive polarity coronal hole high speed stream. Solar wind parameters over the past 24 hours were descriptive of the passage of Co-rotating Interaction Region (CIR)…
CME sparks G3 Strong geomagnetic storm; reverse polarity sunspot appears on the Sun
G3 Strong geomagnetic storm levels associated with the passage of slow-moving August 20th Coronal Mass Ejection were observed early August 26, 2018. A faint and slow-moving CME was first seen in LASCO coronagraph imagery at approximately 22:00 UTC on August 20. The…
Positive polarity CH HSS sparks G1 – Minor geomagnetic storm
A weak positive polarity Coronal Hole High Speed Stream (CH HSS) affecting our planet since late June 17, 2018, sparked a G1 – Minor geomagnetic storm at 02:56 UTC on June 18. Solar wind parameters, as measured by the DSCOVR spacecraft located at the L1 point, were…
Negative polarity CH HSS sparks geomagnetic storming
A negative polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet today, sparking G1 – Minor geomagnetic storming. G1 threshold was reached at 13:29 UTC on June 1, 2018. Solar wind parameters became enhanced over the past 24 hours due to the effect…
G2 – Moderate geomagnetic storm conditions observed
G2 – Moderate geomagnetic conditions were observed on May 6, 2018 in response to the influence of a negative polarity coronal hole high speed solar wind stream. G1 – Minor geomagnetic storm conditions were first observed at 17:59 UTC on May 5, followed by G2 at…
G2 – Moderate geomagnetic storm in progress
A G2 – Moderate geomagnetic storm threshold was reached at 08:25 UTC on April 20, 2018 and G2 warning is in now in effect until 12:00 UTC. An interplanetary shock wave hit Earth’s magnetic field around 23:50 UTC on April 19, Dr. Tony Phillips of SpaceWeather.com…
Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm
A persistent negative polarity coronal hole high speed stream (CH HSS) sparked G2 – Moderate geomagnetic storm on March 18, 2018. A gradual return to background levels is expected on March 19 as CH HSS influence subsides. However, enhanced solar wind parameters are…
CH HSS sparks geomagnetic storm, G2 – Moderate warning
Geomagnetic storms caused by negative polarity, south polar coronal hole high speed stream (CH HSS) reached G1 – Minor levels early Tuesday, February 27, 2018. Solar wind parameters are expected to further increase today and a G2 – Moderate geomagnetic storm warning…
Negative polarity CH HSS sparks G1 – Minor geomagnetic storming
An isolated interval of G1 – Minor geomagnetic storm conditions was observed early February 19, 2018, due to the influence of negative polarity coronal hole high speed stream (CH HSS). Solar activity over the past 24 hours was at very low levels. Earth-facing side…
Filament eruption, spotless Sun, Total Solar Irradiance and cosmic radiation
A 13-degree long plasma filament eruption was observed in SDO/AIA 304 imagery starting at 12:29 UTC on December 15, 2017. A glancing blow is expected late December 19, in combination with a recurrent, positive polarity CH HSS. Meanwhile, solar activity is at very…
Polar-connected, positive polarity CH HSS sparks geomagnetic storming
A high-speed solar wind stream is affecting our planet today, causing geomagnetic storming. G2 – Moderate geomagnetic storm watch is in effect. Solar wind parameters indicated the onset of a Co-Rotating Interaction Region (CIR) in advance of a polar-connected,…
CIR ahead of CH HSS sparks G1 – Minor geomagnetic storming
A Co-Rotating Interaction Region (CIR) ahead of isolated positive polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet today, causing geomagnetic storming. G1 – Minor geomagnetic storm threshold was reached 05:30 UTC. Over the past 24 hours,…
Geomagnetic storms reaching G2 – Moderate levels, spotless Sun
Earth is again under the influence of a recurrent, positive polarity, northern extension Coronal Hole High Speed Stream (CH HSS). G1 – Minor geomagnetic storm level threshold was reached at 11:55 UTC, followed by G2 – Moderate at 19:21 UTC. Over the past 24 hours,…
Recurrent, positive polarity CH HSS sparks geomagnetic storming
Our planet is again under the influence of a recurring, positive polarity Coronal Hole High Speed Stream (CH HSS), which is causing isolated periods of G1 – Minor geomagnetic storming. Over the past 24 hours, solar wind parameters were indicative of the arrival of a…
Geomagnetic storming reaches G2 – Moderate levels
Our planet is under the influence of coronal hole high speed stream (CH HSS) for the third day in a row. The geomagnetic field was unstable, with isolated periods of G1 – Minor storm levels during the past two days and then increased to G2 – Moderate levels at 14:59…
Spotless Sun, CH HSS sparks geomagnetic storms
Geomagnetic storming reaching G1 – Minor levels is underway as our planet moves through a stream of high-speed solar wind. At the same time, solar activity is at very low levels with no flare activity and a spotless Sun on its Earth-facing side. Over the past 24…
G3 – Strong geomagnetic storm levels reached
A recurrent, polar-connected, positive-polarity coronal hole is affecting our planet since September 27. G1 – Minor geomagnetic storm levels were reached at 08:48 UTC on September 27, followed by G2 – Moderate levels at 20:24 UTC and then increased to G3 – Strong…
CH HSS sparks G2 – Moderate geomagnetic storming
A stream of high-speed solar wind coming from a recurrent, polar-connected, positive-polarity coronal hole is affecting our planet today and causing geomagnetic storming. G1 – Minor geomagnetic storm levels were reached at 08:48 UTC and increased to G2 – Moderate…
G2 – Moderate geomagnetic storm in progress
Our planet is under the influence of a positive polarity coronal hole high speed stream (CH HSS) which is causing isolated periods of G2 – Moderate geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor) geomagnetic storm threshold was reached at 15:43 UTC. G2 -…
Glancing blow expected from CME produced by major X8.2 solar flare
A major X8.2 solar flare that erupted at 16:06 UTC on September 10, 2017 from Region 2673, produced a powerful asymmetric full halo Coronal Mass Ejection (CME) and it appears one part of it is heading toward Earth. A glancing blow is expected late on September 13….
G4 – Severe geomagnetic storming observed as CME from X9.3 flare impacts Earth
A Coronal Mass Ejection (CME) produced by the X9.3 solar flare on September 6, 2017, reached our planet at 23:04 UTC on September 7, 2017, a full day earlier than it was expected. G3 – Strong geomagnetic storming started 23:25 and increased to G4 – Severe at 23:50…
Shock arrival from September 4 Coronal Mass Ejection
The coronal mass ejection (CME) produced by the M5.5 solar flare on September 4, 2017 arrived at the DSCOVR spacecraft on September 6 at 23:08 UTC and at Earth 30 minutes later. The impact did not spark a geomagnetic storm, but the potential still exists as the CME…
Direct CME hit expected, G3 Strong geomagnetic storm watch issued
An asymmetric full halo Coronal Mass Ejection (CME) produced by the M5.5 solar flare at 20:33 UTC on September 4, 2017 is traveling toward Earth and is expected to arrive late on September 6. G3 – Strong geomagnetic storm watch is in effect for September 6 and 7….
Sudden enhancement in solar wind environment sparks G2 – Moderate geomagnetic storm
G2 – Moderate geomagnetic storm conditions were observed early August 22, 2017 due to a sudden enhancement in solar wind environment. SWPC said conditions are not expected to increase any higher, with solar winds continuing to decrease as the day progresses….
CH HSS sparks isolated periods of G1 geomagnetic storming
Our planet is under the influence of a coronal hole high speed stream (CH HSS) which is causing isolated periods of G1 – Minor geomagnetic storming over the past 2 days, August 17 and 18, 2017. Meanwhile, solar activity is very low. There is only one numbered active…
Positive polarity CH HSS sparks G1 geomagnetic storm
A positive polarity coronal hole high speed stream (CH HSS) is affecting our planet and will continue to do so over the next three days. Over the past 24 hours, by 12:30 UTC on July 22, solar wind parameters as measured by DSCOVR spacecraft reflected the influence…
CME hits Earth, sparks G2 – Moderate geomagnetic storm
A coronal mass ejection (CME) produced by the July 14th M2.4 long-duration solar flare hit Earth’s magnetic field at 06:01 UTC on July 16, 2017. G2 – Moderate geomagnetic storming started 9 hours later. The S1 Minor solar radiation storm that started at 09:00…
CH HSS sparks geomagnetic storms reaching G1 levels
Our planet is under the influence of a positive polarity CH HSS which is causing geomagnetic storms reaching G1 – Minor levels. During the past 24 hours, solar wind parameters reflected the onset of a co-rotating interactive region (CIR) followed by the influence of…
Partial-halo CME impact sparks G1 geomagnetic storm
A partial-halo coronal mass ejection (CME) produced on June 28, 2017 hit Earth’s magnetic field at 17:12 UTC on July 1, almost 24 hours earlier than expected. The impact was weak but managed to spark a G1 – Minor geomagnetic storm 17 hours later. G1 Watch…
Recurrent CH HSS sparks G1 geomagnetic storming
Earth is under the influence of a recurrent, negative polarity coronal hole high speed stream (CH HSS) today which is causing G1 – Minor geomagnetic storming. Solar wind speed increased to 548 km/s at 08:08 UTC while total field reached a maximum of 16 nT at 07:16…
CME impact sparks G3 – Strong geomagnetic storm
A coronal mass ejection (CME) produced during the early UTC hours of May 23, 2017 hit Earth’s magnetic field at 15:36 UTC on May 27, more than 24 hours after it was expected. Although the solar wind speed is relatively slow, the embedded magnetic field had a…
G2 – Moderate geomagnetic storms expected
Geomagnetic storms reaching G2 – Moderate levels are expected over the next 48 hours due to the influence of a geoeffective coronal hole in combination with an Earth-directed component of coronal mass ejection (CME) produced on May 13. The first effects are expected…
G2 – Moderate geomagnetic storm, aurora seen as far south as Colorado
A potent coronal hole has become geoeffective and possibly in a combination with an April 18 CME is causing geomagnetic storms reaching G2 levels. This is the second of two geoeffective coronal holes to affect Earth this week. The effects are expected to persist…
G2 – Moderate geomagnetic storm level reached
A G2 – Moderate geomagnetic storm conditions were reached at 04:33 UTC on April 20, 2017. This activity is a result of continued coronal hole effects, the first of two expected to affect our planet this week. The geomagnetic field reached G1 – Minor levels during…
Geomagnetic storms reaching G1 level expected
Earth is under the influence of a recurrent, positive polarity coronal hole high speed stream (CH HSS). A G1 – Minor geomagnetic storm began at 05:59 UTC today. Solar wind parameters, as measured by the DSCOVR spacecraft, continued at mostly nominal levels over the…
G1 – Minor geomagnetic storm in progress
A G1 – Minor geomagnetic storm is in progress as of 08:14 UTC on April 4, 2017, due to Earth’s proximity to the heliospheric current sheet (HCS) and weak influences of the southern polar, negative coronal hole high speed stream (CH HSS). Geomagnetic K-index of 5…
Geomagnetic storms begin as potent coronal hole becomes geoeffective
A recurrent, negative-polarity coronal hole is affecting our planet, causing geomagnetic storming. A G2 – Moderate geomagnetic storm watch is in effect for March 28 and 29. A high speed solar wind stream produced by a recurrent, negative-polarity (potent) coronal…
CH HSS sparks geomagnetic storming, G2 warning issued
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) which is causing geomagnetic storming. G1 – Minor geomagnetic storm threshold was first reached at 16:12 UTC on March 21, 2017. A G2 – Moderate geomagnetic storm warning was…
Earth under the influence of polar-connected CH HSS
A negative polarity, polar-connected coronal hole high speed stream (CH HSS) is affecting Earth for the second day in a row, sparking geomagnetic storms reaching G2 Moderate levels. Over the past 24 hours, the solar wind environment was elevated due to the passage…
Negative polarity CH HSS sparks G1 geomagnetic storm
Earth is under the influence of a recurrent, polar-connected coronal hole which has sparked G1 (Minor) geomagnetic storming today. Unsettled to active conditions, with G1 storming likely, are expected to continue through March 2. Geomagnetic K-index of 5 (G1 – Minor…
CH HSS sparks geomagnetic storm reaching G1 levels
Our planet is under the influence of a recurrent, positive polarity coronal hole high speed stream since around 20:48 UTC on February 23. This is causing G1 geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first reached at…
G1 geomagnetic storm in progress
A recurrent, negative polarity coronal hole high-speed stream (CH HSS) is affecting our planet causing isolated periods of G1 Minor geomagnetic storming and vivid auroras. High-speed solar wind speed hit Earth late January 31, 2017. Geomagnetic K-index of 5 (G1 -…
G2 geomagnetic storm in progress
Earth is under the influence of a positive polarity coronal hole high speed stream today, December 21, 2016, which is causing geomagnetic storms reaching G2 Moderate levels. Shortly after 04:00 UTC on December 21, solar wind speeds increased to just over 500 km/s,…
G1 geomagnetic storm in progress
A geomagnetic storm is currently in progress due to ongoing negative polarity coronal hole high speed stream (CH HSS) influence. The G1 Watch is in effect for the next three days. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first reached at…
Positive polarity CH HSS sparks geomagnetic storms
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS). A sudden escalation in overall planetary geomagnetic response from a favorable solar wind environment and elevated solar wind streams triggered periods of G1 and G2…
Geomagnetic storm in progress, CH HSS influence expected until October 27
Earth is passing through a stream of high speed solar wind produced by a recurrent, polar connected, positive polarity coronal hole. This is causing isolated periods of G1 class geomagnetic storming. G2 – Moderate geomagnetic storm watch is in effect for October…
G2 geomagnetic storm in progress, G3 – Strong watch in effect for October 14
A filament in Sun’s northeast quadrant erupted between 15:00 and 17:00 UTC on Saturday, October 8, 2016, producing an asymmetric, partial-halo CME. The CME, although faint, was first observed in LASCO C2 imagery beginning 00:48 UTC on October 9. It reached ACE…
Prolonged geomagnetic storming, isolated periods of G2 – Moderate levels
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) for several days now. Enhanced solar wind parameters are expected to continue through October 1, with G3 – Strong geomagnetic storm levels possible today. G2 – Moderate…
Recurrent coronal hole sparks another round of geomagnetic storming
High-speed solar wind from a recurrent coronal hole has sparked another round of geomagnetic storming on Earth. The solar wind environment is expected to remain elevated but steady through the rest of the UTC day before becoming further enhanced on September 28 and…
G1 – Minor geomagnetic storm conditions observed
During the past 24 hours, solar wind parameters transitioned from near background conditions to an enhanced state, causing G1 – Minor geomagnetic storming on Earth. This was most likely caused by the onset of co-rotating interaction region (CIR) ahead of a negative…
Positive polarity CH HSS sparks geomagnetic storm
Earth is under continued influence of a positive polarity coronal hole high speed stream (CH HSS), which is now causing geomagnetic storms at high latitudes. K-index of 5 (G1 – Minor geomagnetic storm) threshold was reached at 08:59 UTC on September 1, 2016. …
Geomagnetic storm in progress
A geomagnetic storm reaching G1 – Minor levels is currently in progress following the early arrival of July 17th Coronal Mass Ejection (CME). The interplanetary shockwave produced by the long duration C1 flare on July 17, initially expected to arrive early on July…
Negative polarity CH HSS drives isolated periods of geomagnetic storming
Solar wind parameters reflected a brief enhancement associated with the arrival of a co-rotating interaction region (CIR) and subsequent negative polarity coronal hole high speed stream (CH HSS) late June 22, 2016. A gradual increase in solar wind speeds began after…
Geoeffective coronal hole, geomagnetic storm in progress
A co-rotating interaction region (CIR) – the transition zone between slow- and fast-moving streams of solar wind – has hit Earth’s magnetic field on June 14, 2016, sparking geomagnetic storms. As of 19:55 UTC, a G2 – Moderate geomagnetic storm is in progress and…
Recurrent CH HSS causing geomagnetic storms
A recurrent, negative polarity coronal hole high speed stream (CH HSS) has hit Earth’s magnetic field causing geomagnetic storms on June 5, 2016. A G2 (Moderate) geomagnetic storm watch is currently in effect. This same CH HSS has affected Earth on May 8 with…
Strong geomagnetic storms in progress
A G3 – Strong geomagnetic storm conditions were observed beginning 05:59 UTC on May 8, 2016. G2 – Moderate to G3 – Strong geomagnetic storm conditions are expected through the rest of the day and possibly into May 9 and 10. This activity is caused by a recurrent,…
G2 – Moderate geomagnetic storm
Enhanced solar wind conditions have fueled elevated geomagnetic field activity early May 2, 2016. Geomagnetic storms reaching G2 – Moderate levels have been observed. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first reached at 00:37 UTC on…
CH HSS causing isolated periods of G1 – Minor geomagnetic storming
Earth is under the influence of negative polarity coronal hole high speed stream (CH HSS) since late April 12, 2016. This is causing isolated periods of G1 – Minor geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first…
Geomagnetic storm in progress
A geomagnetic storm reaching G1 – Minor levels is currently in progress as Earth enters a stream of positive polarity high-speed solar wind. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was reached at 20:40 UTC on April 7: Space Weather Message…
Recurrent CH HSS causing geomagnetic storming on Earth
Our planet is passing through a stream of fast-moving, negative polarity solar wind. Geomagnetic storming reached G1 – Minor levels at 17:24 UTC. A G2 – Moderate warning is in effect for the rest of the UTC day. This is a recurrent CH HSS, responsible for G3 -…
A new round of geomagnetic storming sparked
A new round of geomagnetic storming is in progress on March 15, 2016. Solar wind parameters are enhanced since late March 14 due to the onset of a negative polarity coronal hole high speed stream (CH HSS) and are expected to remain like that through March 16….
G2 – Moderate geomagnetic storm in progress
After strong G3 geomagnetic storm on March 6 and 7, solar wind parameters increased again around 04:00 UTC on March 11. The cause is most likely a Coronal Mass Ejection (CME) from March 6. Interplanetary magnetic field (IMF) total field (Bt) valuese steadly…
Negative polarity CH HSS causes geomagnetic storming on Earth
A negative polarity, coronal hole high speed stream (CH HSS) became geoeffective early March 6, 2016, causing an increase in solar wind speeds and an enhanced interplanetary magnetic field. A G1 – Minor geomagnetic storm began at 17:28 UTC, increased to G2 -…
Coronal hole causes G1 – Minor geomagnetic storm
A geomagnetic storm reaching G1 – Minor levels is currently in progress due to the arrival of the co-rotating interaction region (CIR) associated with coronal hole 55. The proton flux might reach S1 – Minor levels in the period between February 16 and 18 due to the…
CME hits Earth, G3 Strong geomagnetic storming expected
The December 28th coronal mass ejection (CME) produced by the long duration M1.8 solar flare passed the ACE spacecraft at 00:02 UTC on December 31 and reached our planet at 00:51 UTC. Geomagnetic K-index of 4 threshold was reached at 01:05 UTC. The impact is…
M-class solar flares erupting behind the Sun’s northeast limb
An active region currently positioned behind the northeast limb erupted with two M-class solar flares by 10:19 UTC on December 21, 2015. The first event started at 00:52, peaked at 01:03 as M2.8 and ended at 01:11 UTC. The second event started at 10:09, peaked at…
Geomagnetic storms reaching G2 Moderate levels in progress
A halo Coronal Mass Ejection (CME) generated by December 16th C6.6 solar flare has reached our planet on December 19 causing enhanced solar wind conditions, prolonged period of the southward magnetic field and planetary geomagnetic storms reaching G2 Moderate…
CME hits Earth sparking geomagnetic storm
Two solar filaments erupted from the SW quadrant of the Sun late November 15 and early November 16 producing a Coronal Mass Ejections (CMEs) that arrived at Earth at 20:10 UTC on November 18. A G1 – Minor geomagnetic storm is currently in progress. This, combined…
Geomagnetic storm reaching G2 – Moderate levels in progress
Geomagnetic storm reaching G2 – Moderate levels is currently in progress due to continuous influence from a positive polarity coronal hole. This influence will decrease over the next couple of days, however, the Coronal Mass Ejection (CME) associated with the M3.9…
CME impact sparks geomagnetic storms reaching G2 moderate levels
Coronal Mass Ejection (CME) unleashed by a long duration M3.7 solar flare on November 4 reached our planet at 18:25 UTC on November 6, almost a full day earlier than it was expected. An enhanced magnetic field, coupled with winds speeds approaching 700 km/s have…
The Sweden Case: Airplanes disappear from radars due to “solar storm”
Swedish media is reporting air traffic problems due to “solar storm” interfering with air traffic control radar systems during the afternoon of November 4, 2015. It is unclear, however, whether they meant the Solar Radiation Storm or Geomagnetic Storm, two…
Large equatorial coronal hole causing major geomagnetic storming
Our planet is under the influence of positive polarity coronal hole today which is causing enhanced geomagnetic conditions. Geomagnetic K-index of 6 (G2-Moderate geomagnetic storm) threshold was first reached at 05:17 UTC today. Geomagnetic K-index of 7 (G3 – Strong…
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CME impact: Geomagnetic storm reaching G3 Strong levels in progress
Geomagnetic storm reaching G3 Strong levels is currently in progress as a result of Coronal Mass Ejection (CME) impact on top of Coronal Hole High Speed Stream (CH HSS) influence.The CME, produced by September 18th C-class solar flare, reached our planet at 06:05 UTC on
Geomagnetic storming continues: G3 Strong levels reached on September 11
Our planet’s magnetic shield is again under stress today with brief G3 Strong geomagnetic storm levels reached around 09:00 UTC. The storms began on September 7 with positive polarity coronal hole reaching geoeffective position and an impact of plasma filament
Why aurora is everywhere today: Solar storm news – September 10, 2015 with Dr. Tamitha Skov
The Earth continues to be slammed this week by a huge solar storm that has raged for several days, Dr. Tamitha Skov of the SpaceWeather.TV reports today. It started on September 7 and has kept us at moderate storm conditions nearly continuously since. Spectacular aurora
Geomagnetic storm reaching G2 Moderate levels in progress
Geomagnetic storm reaching G2 Moderate levels is currently in progress due to the influence of a positive polarity coronal hole high speed stream (CH HSS). Geomagnetic K-index of 5 (G1 Minor) threshold was first reached at 15:00 UTC on September 7. K-index of 6 (G2 Mode
11th M-class solar flare erupts from Region 2403, geomagnetic storm in progress
On August 28, 2015, departing Region 2403 produced its 10th and 11th M-class solar flare since it rotated onto the Earth side of the Sun. The first event started at 13:04, peaked at 13:16 as M2.2, and ended at 13:23 UTC. The second event started at 18:56, peaked at
Geomagnetic storming expected to continue over the next two days
Geomagnetic storm reaching G2-Moderate levels has been observed on August 27, 2015, mostly due to effects of August 22 CME that arrived late on August 25. This activity is expected to slightly wane throughout the day, but active levels are again expected later in the da
Geomagnetic storm reaching G2 – Moderate levels in progress, CME hit expected on August 24
A co-rotating interaction region (CIR) ahead of a series of positive polarity coronal hole high speed streams (CH HSS) is causing elevated geomagnetic field levels on Sunday, August 23, 2015.A further enhancement is expected early to midday August 24 with the arrival
Geomagnetic storm reaching G3 (Strong) levels in progress, extreme conditions possible
During the last 24 hours, solar wind parameters, measured by the ACE spacecraft, were indicative of background solar wind conditions until 07:45 UTC on August 15, when a sudden impulse occurred due to the arrival of a co-rotating interaction region (CIR) ahead of a
G1-Minor geomagnetic storm in progress
A G1-Minor geomagnetic storm is in progress as a result of coronal hole high speed stream (CH HSS) buffeting Earth’s magnetic field.Effects from the CH HSS are expected to continue disrupting the solar wind environment for the rest of the July 13.By July 14,
Coronal hole high speed stream causing geomagnetic storming
During the late UTC hours of July 10, 2015, coronal hole high speed stream (CH HSS) hit Earth’s magnetic field causing enhanced geomagnetic activity.Geomagnetic K-index of 5 threshold (G1-Minor geomagnetic storm) was first reached at 22:44 UTC. Area of impact was pr
Geomagnetic storming briefly reaches G2-Moderate levels
During the last 24 hours, solar wind parameters reflected an enhanced solar wind environment due to the onset of a co-rotating interaction region (CIR) in advance of a negative polarity coronal hole high speed stream (CH HSS). Solar wind speed increased from initial va
Filament eruptions and impulsive M1.5 solar flare, geomagnetic storming expected due to CH HSS
Moderately strong solar flare reaching M1.5 at its peak time erupted at 12:53 UTC on July 3, 2015. The event started at 12:47 and ended at 12:53 UTC.The source was Region 2378, which rotated into the southwest quadrant yesterday producing innumerous C-class solar flares
Geomagnetic storming reaching G2-Moderate levels in progress
Coronal Mass Ejection (CME) produced by a long duration M6.5 solar flare on June 22 appears to have arrived at 13:00 UTC on June 24.Bt increased to 15nT and solar wind velocities increased to over 700 km/s at the time. Bz, however, remained largely positive and the over
Geomagnetic storming reaching G4-Severe levels in progress
Three Coronal Mass Ejections (CMEs) produced on June 18, 19 and 21 have now all arrived at our planet and their combined effects caused G4-Strong geomagnetic storm on June 22, 2015. Two of the three CMEs were produced by Region 2371, one of the biggest regions of the cu
Three Earth-directed CMEs trigger G3-Strong Geomagnetic Storm Watch
Coronal Mass Ejections (CMEs) from June 18, 19 and 21 have significantly increased chances for G3-Strong geomagnetic storms on June 22, 2015. Two of the three CMEs were produced by Region 2371, one of the biggest regions of the current solar cycle, which is currently di
Partial-halo CME to deliver glancing blow on June 23
Filament eruption in the SSE quadrant of the Sun produced a partial-halo Coronal Mass Ejection (CME) first observed in coronagraph imagery near 08:45 UTC on June 19 (above). WSA-Enlil model suggests a glancing blow early on June 23. Beta-Gamma-Delta classified…
Increased solar activity, glancing blow CME impact expected on June 12
Solar activity has increased to moderate levels during last 24 hours with an impulsive M1.0 solar flare (R1-Minor) at 08:55 UTC on June 11, 2015. The source was an area of enhanced emission on the Sun’s east limb.Current SDO imagery reveals a cluster of sunspots
Geomagnetic storm reaching G2 – Moderate in progress
Earth’s geomagnetic field is disturbed since early June 7, 2015 as a result of solar sector boundary crossing (SSBC) preceding the negative polarity CH HSS. Geomagnetic storms reaching G2 – Moderate are in progress today.SWPC said SSBC occurred at 01:45 UTC on June
Geomagnetic storm reaching G2 – Moderate levels in progress
Geomagnetic storm reaching G2 – Moderate levels is currently in progress due to continued accelerated solar wind speeds and enhanced magnetospheric activity. This activity is attributed to a well connected coronal hole located just south of the solar Equatorial plane, S
Southern pole connected CH HSS causes unsettled to major geomagnetic storms
Southern pole connected coronal hole high speed stream (CH HSS) is causing unsettled to major (G2 – Moderate) geomagnetic storms since April 15, 2015.Geomagnetic K-index of 6 (G2 – Moderate) threshold was reached at 23:27 UTC on April 16, 2015.During the last 12 hours (
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Geomagnetic storm reaching G2 Moderate levels in progress
The solar wind environment at the ACE spacecraft displayed two weak transient signatures near 01:00 and 09:00 UTC on April 9, 2015, suggesting the arrival of the April 6 Coronal Mass Ejection (CME) from Region 2320 and a weak coronal hole high speed stream (CH HSS).Wind
Strongest geomagnetic storm of SC24 sparks spectacular aurora display
The strongest geomagnetic storm of the current solar cycle (Solar Cycle 24) reached G4 Severe levels (Kp=8) on March 17, 2015 and sparked spectacular auroras in both hemispheres of our planet. The event was identified as the combined effects of CMEs which erupted on Mar
CMEs impact, geomagnetic storms reaching G4 Severe in progress
A sequence of events led to an Earth-directed asymmetric halo CME on March 15, 2015. The events began with a 14 degree long filament eruption, centered near S24W38, lifting off between 00:45 to 02:00 UTC. This was followed by C2.4 flare at 00:41 UTC and a long duration
Numerous M-class flares and CMEs off the northwestern limb
Solar activity reached moderate levels today when Region 2290 (N22W84, Hsx/Alpha) produced a pair of M1 (R1-Minor) flares at 06:39 (M1.0) and 09:48 UTC (M1.1). This region also produced numerous low and mid-level C-class flares over the last 24 hours.Numerous Coronal Ma
G1-Minor geomagnetic storm in progress
A G1-Minor geomagnetic storm is currently in progress due to the influence of a recurrent negative polarity coronal hole high speed stream (CH HSS). Geomagnetic K-index of 5 (G1) threshold was reached at 02:31 UTC on February 24, 2015. Area of impact is primarily polewa
Southern crown coronal hole stirring up geomagnetic storms
Earth is currently under the influence of a high speed solar wind speed, originating in negative polarity southern crown coronal hole, which is causing periods of geomagnetic storming on our planet.Solar wind readings indicated a co-rotating interaction region (CIR) whi
Unanticipated CME hit causes G3 – Strong geomagnetic storm
Our planet is still under the influence of coronal hole high speed solar wind speed (CH HSS) which is fueling geomagnetic storming around the poles. Additionally, an unanticipated Coronal Mass Ejection (CME) passed the ACE spacecraft and Earth around 05:30 UTC today
Earth under the influence of high speed solar wind stream
Earth is currently under the influence of a high speed solar wind stream originating in large southern coronal hole. Although the bulk of this stream is headed south of our planet, we have already experienced severe geomagnetic storm periods at high latitudes.Geomagneti
G1 (Minor) geomagnetic storm underway
Earth is currently under the influence of a coronal hole high speed solar wind stream (CH HSS) which is causing geomagnetic storming around the poles.K-index of 5 (G1-Minor) threshold was reached at 17:18 UTC today. Area of impact is primarily poleward of 60 degrees Geo
Minor geomagnetic storm in progress, weak negative CH HSS expected
According to the SWPC, the ACE satellite observed a pair of discontinuities in the solar wind field during the past 24 hours. The first discontinuity at 02:35 UTC on December 21 was weak and possibly indicated the arrival of a glancing blow from the December 17th Corona
Impulsive M1.5 erupts off the east limb, Earth under the influence of CH HSS
An impulsive solar flare measuring M1.5 at its peak time erupted early on December 13, 2014, from a region rotating around the SE limb. The event started at 05:13, peaked at 05:20 and ended at 05:25 UTC.This new region shows a good potential for increased solar activity
G1 (Minor) geomagnetic storm in progress
NOAA/SWPC issued G1 (Minor) geomagnetic storm alert early on December 7 due to the high speed solar wind stream originating from a geoeffective coronal hole in the Sun’s southern hemisphere. Geomagnetic K-index of 5 (G1 – Minor) threshold was reached at 01:24 UTC to
Geomagnetic storm (G1) in progress, severe levels at high latitudes
Solar wind parameters indicated the arrival of the November 7 CME earlier today. At approximately 01:37 UTC, when CME arrived, total field increased from around 10 nT to a maximum of 23 nT at 01:46 UTC. The Bz component increased to +21 nT before briefly going southward
CME generated by X1.6 solar flare to arrive on November 10
A partial halo Coronal Mass Ejection (CME) was generated by major X1.6 solar flare on November 7, 2014.WSA/ENLIL modeling of the event shows a partially Earth-directed component that is expected to impact the geomagnetic field early to midday on November 10 causing acti
Dynamic auroras visible for the fifth day in a row
For the 5th day in a row a crack in the Earth’s magnetosphere is allowing solar wind to reach Earth. Although a full geomagnetic storm is not required to generate auroras at this time of the year, coronal hole effects and multiple solar sector changes currently affe
CME impact from X1.6 solar flare generated strong G3 geomagnetic storm and bright auroras
The Earth’s magnetic field got disturbed in response to the arrival of the September 10 halo CME caused by X1.6 solar flare. Magnetometers around the world recorded a Geomagnetic Sudden Impulse at 15:55 UTC which signaled the arrival of the CME at
Two CMEs heading toward Earth, severe geomagnetic storms expected
There are currently two Coronal Mass Ejections (CMEs) heading toward our planet and their combined arrival is expected to spark severe geomagnetic storms.The first one, released by the long duration M4.5 solar flare on September 9, is expected to hit Earth’s magneti
Geomagnetic storm in progress, auroras visible at high latitudes
Plasma cloud unleashed by M-class solar flare on August 22 reached our planed early Wednesday, August 27. Wind speeds increased from near 280 km/s to 340 km/s while density remained primarily between 5-10 p/cc (protons per cubic centimeter).Active to minor storm (G1) co
Geomagnetic storm reached G2 levels, amazing auroras photographed from ISS
A Coronal Mass Ejection (CME) unleashed by solar filament eruption on August 15 started interacting with Earth’s magnetic field around 07:00 UTC on August 19 causing, at first, only a minor instability.As the Earth passed through the plasma cloud the effects in
Geomagnetic storm reaching G2 – Moderate levels in progress
Solar filament eruption on June 4th unleashed a Coronal Mass Ejection (CME) which partially hit Earth’s magnetic field at 16:57 UTC on June 7, 2014. The impact sparked minor geomagnetic storming which increased by the morning of June 8th. Geomagnetic K-index of
Subsiding geomagnetic and solar radiation storms
Geomagnetic storm sparked by a combination of CMEs from last couple of days is now subsiding. We might still see uptick today but it will most likely remain below G1 levels.At 10:57 UTC on April 20, a 24 nT geomagnetic sudden impulse (interplanet
Geomagnetic storming in progress, bright auroras formed around the Arctic Circle
During the late hours of April 11 the Interplanetary Magnetic Field (IMF) tipped south and opened a crack in Earth’s magnetosphere. Our planet is now under the influence of coronal hole high speed stream (CH HSS). CH HSS effects are expected to begin subsiding
CME impact causes minor increase in geomagnetic activity
A geomagnetic sudden impulse, indicating the arrival of the March 23 CME, was observed at the Hartland magnetometer (23 nT) at 20:09 UTC on March 25.
The geomagnetic field is expected to be at unsettled to active levels (below G1-Minor) early on March 26 as CME
Near X-class solar flare and geomagnetic storm – M9.3
Near X-class solar flare reaching M9.3 erupted from departing Sunspot 1996 on March 12, 2013 at 22:34 UTC.
This decaying sunspot is located near eastern limb and generated CME was not geoeffective, however, it produced a R2 (Moderate) Solar Flare Radio Blackout
Subsiding geomagnetic storm sparked bright auroras over northern Europe, Greenland and Iceland
Coronal mass Ejection brushed Earth’s magnetic field causing G2 (Moderate) Geomagnetic Storming late on February 27, 2014. The event was associated with the R3 (Strong) Solar Flare Radio Blackout event caused by February 25th X4.9 solar flare.
Geomagnetic storming in progress, M3.0 solar flare from western limb
As forecasted yesterday Coronal Mass Ejection (CME) hit Earth’s magnetic field around 03:00 UTC today. That’s a second CME impact within 24 hours, and another round of auroras.
SWPC issued Geomagnetic K-index of 6 (G2 – Moderate) alert at 05:28
Unexpected geomagnetic storming underway, reaching G2 (moderate) levels
Earth is currently under the influence of a Coronal Mass Ejection (CME) and G2 (Moderate) geomagnetic storming has been observed. According to SWPC, this is likely the result of what was expected to be a near miss from an event originally observed on
Multiple CMEs observed from central region on the Sun
Solar activity was at moderate levels in last 24 hours (12:30 UTC). Region 1974 (S13W05, Fsc/beta-gamma-delta) continued to exhibit growth and separation in the intermediate spots, and was responsible for the majority of the flare activity throughout the
Minor geomagnetic storming, first auroras of 2014 – moderate solar activity to continue
High speed solar speed is creating brief periods of geomagnetic storming. High latitude skywatchers should be alert for auroras.
Solar activity has been at moderate levels for the most of the day. There are 8 active sunspot regions on the Earth side of the
Geomagnetic storming sparked by coronal hole high speed stream in progress
Earth is now under the influence of a stronger than expected coronal hole high speed stream (CH HSS). G2 (Moderate) geomagnetic storming has been observed and continued low-level storming is possible over the next 24 hours as Earth remains under the influence of
Unsettled geomagnetic conditions expected as solar activity picks up
From the start of October, Sun erupted 28 M-class and 3 X-class solar flares, sending the material into the space.
Solar activity is still raising with major X1.0 flare on October 28, 2013 and four moderate M-class flares. While our geomagnetic field is
Interplanetary shock wave hit Earth’s magnetic field – geomagnetic storm in progress
An interplanetary shock wave from yesterday’s CME hit Earth’s geomagnetic field at 20:23 UTC today. At the time, Boulder station measured magnetic field Bz component deviation of 62 nT. A G1 (minor) geomagnetic storm is currently underway. High
Sunday’s CME sparked moderate (G2) geomagnetic storming
A G2 geomagnetic storm is now in progress following CME impact on Earth’s magnetic field early on October 2, 2013. The ACE spacecraft detected a solar wind increase to above 600 km/s and the Bz component (IMF) initially tipped sharply south to -19nT.
Six years of observing the Earth’s magnetosphere
There is still only a handful of spacecraft to watch for solar and magnetic storms but the number of observatories has been growing over the last six years. Today, these spacecraft have begun to provide the first multipoint measurements to better understand space
High-speed solar wind speed buffeting Earth’s magnetic field – G1 geomagnetic storm in progress
A high-speed solar wind stream from a geoeffective coronal hole is buffeting Earth’s magnetic field and causing geomagnetic storms around the poles. The Bz component of the interplanetary magnetic field (IMF) is rotating between north and south pointing
Solar wind stream buffeting Earth’s magnetic field
During last 24 hours solar wind stream buffeted Earth’s magnetic field causing geomagnetic storms around the poles. Geomagnetic conditions were short lived reaching G1 – Minor geomagnetic storm levels (Kp=5). At those levels weak power
G1 geomagnetic storm in progress (July 15, 2013)
A minor geomagnetic storm is currently in progress due to slow-moving CME that erupted on July 9, 2013 and swept past Earth on July 13, 2013. The Bz component of the interplanetary magnetic field (IMF) tipped sharply south late on July 14,
Strong G3 geomagnetic storm in progress (June 29, 2013)
As Earth passes through a new coronal hole high speed stream, backed by unidentified CME shock, a prolonged interval of south-pointing magnetism (southward Bz) is having a strong impact on Earth’s geomagnetic field. On June 29, 2013 Planetary K-index
Solar wind stream buffers Earth magnetic field
Earth is currently inside a solar wind stream flowing in from the massive coronal hole on the Sun’s northern hemisphere. Elevated solar wind speed (above 600 km/s) combined with a south tilting Bz component of Interplanetary magnetic field (IMF) is responsible
Moderate geomagnetic storm in progress (June 7, 2013)
A moderate G2 Geomagnetic Storm (Kp=6) is currently in progress due the arrival of the fast flow from the low-latitude coronal hole at the northern hemisphere. Bz component of Interplanetary Magnetic Field (IMF) has been tipping sharply
Geomagnetic storm still in progress (June 2, 2013)
The arrival of an interplanetary shock wave on May 31, 2013 caused geomagnetic storming that reached G2 (Moderate) geomagnetic storm levels on NOAA/SWPC storm scale during June 1, 2013. The solar wind speed remains elevated above 650 km/s. Currently, geomagnetic
Moderate G2 geomagnetic storm in progress (June 1, 2013)
G2 (Moderate) geomagnetic storming has been observed as Earth remains under the influence of a slow-moving Coronal Mass Ejection (CME). This event was not associated with a significant M1.0 solar flare from May 31, 2013 and is likely the result of a disappearing
Subsiding geomagnetic storm (May 25/26, 2013)
Geomagnetic storming, caused by May 22th M-class solar flare and its Coronal Mass Ejection (CME), is slowly subsiding. Plasma cloud reached our geomagnetic field on May 24, 2013. In the past 24 hours, Earth’s magnetic field experienced three episodes of
Geomagnetic storm in progress, subsiding solar radiation storm (May 24, 2013)
The geomagnetic storm associated with the May 22, 2013 solar flare (M5.0) and corresponding Coronal Mass Ejection (CME) is ongoing. G1 (Minor) geomagnetic storm conditions have occurred as a result. According to NOAA/SWPC, continued, low-level
Strong (S3) solar radiation storm in progress (May 23, 2013)
Solar radiation storm reached S3 (Strong) levels at approximately 03:00 UTC on May 23, 2013. Strong solar radiation storm is still in progress due an M5.0 solar flare originating in departing Sunspot 1745 on the Sun’s western limb. The M-class
Major G2 geomagnetic storm conditions expected as CME sweeps past Earth
NOAA/SWPC reported passage of an interplanetary shock, recorded by ACE spacecraft. The CME-driven shock was first seen at 22:21 UTC on May 19, 2013, a bit later than forecasters had predicted. A Geomagnetic Sudden Impulse was recorded at 23:11 UTC. This
G1 (Minor) Geomagnetic Storm in progress – May 18, 2013
G1 (Minor) Geomagnetic Storm conditions are now occurring due to the arrival of the CME from May 15, 2013. During G1 Geomagnetic Storm, weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora is commonly
Moderate M1.3 solar flare from Region 1748. Slight chance for minor geomagnetic storming today
Active Region 1748 erupted with moderate solar flare measuring M1.3 at 21:53 UTC on May 16, 2013. This was another noticeable activity from this region after 4 X-class flares erupted on May 13/14. (X1.7 and X2.8 on May 13th, X3.2 and X1.2 on May 14th)
This
Geomagnetic storms – basic terms, data, plots and graphs
A coronal mass ejection (CME) that erupted on March 15, 2013, hit Earth’s magnetic field at 06:00 UTC on March 17, 2013. The solar wind speed reached 700 km/s and sparked a moderately strong G2 (Kp=6) geomagnetic storm and minor S1 solar radiation
Strong CME impact – G2 Geomagnetic Storm
Long duration M 1.2 solar flare erupted on March 15, 2013 and launched a Full-Halo Coronal Mass Ejection (CME) toward Earth. It hit Earth’s magnetic field at 06:01 UTC on March 17, 2013 and Geomagnetic K-index of 6 reached threshold on March 17, 2013 at 08:42
Minor geomagnetic activity expected at high latitudes
On March 12, 2013 a solar filament in the sun’s northern hemisphere erupted and launched Coronal Mass Ejection (CME). The source of the explosion was active region AR1690. A CME produced by the explosion is traveling north of the Earth line, but part of the CME
Unsettled geomagnetic conditions as Earth passes through solar wind stream
A weak interplanetary shock was registered by ACE spacecraft at 10:58 UTC on February 16, 2013. This event is not expected to bring widespread geomagnetic disturbances, however, it sparked aurora displays at very high latitudes.The Kp index is currently at 4, very
Plasma cloud from major X-class solar flare reached Earth
The CME from strongest solar flare in four years disrupted radio communications in southern China, according to the China Meteorological Administration.
The US space administration NASA confirmed that Monday’s solar flare was the largest in four years,