Solar activity

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Strong M5.5 solar flare erupts from Region 2929

A strong solar flare measuring M5.5 at its peak erupted from Active Region 2929 at 06:01 UTC on January 20, 2022. The event started at 05:41 and ended at 06:12 UTC. A Type II Radio Emission with an estimated velocity of 329 km/s was detected at 05:57 UTC. Type II...

January 20, 2022

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CME produced by M1.8 solar flare expected to arrive at Earth as a glancing blow on December 23

Solar activity reached moderate levels over the past 24 hours with an M1.8 solar flare from AR 2908 at 11:36 UTC on December 20, 2021. Initial analysis indicated the likelihood of the northern flank arrival of associated CME on December 23. Eight sunspot groups were...

December 21, 2021

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CME produced by filament eruption expected to reach Earth on November 27

An approximate 10-degree filament eruption, centered near S36E33, was observed in GONG H-alpha imagery beginning at 09:58 UTC on November 24, 2021. An associated coronal mass ejection (CME) was observed in SOHO/LASCO C2 imagery beginning at 14:12 UTC on November 24...

November 25, 2021

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Long-duration M2.0 solar flare erupts on the NW side of the Sun

A long-duration solar flare measuring M2.0 erupted from AR 2891, currently located on the Sun's northwestern limb. The event started at 15:47, peaked at 17:02 and ended at 17:37 UTC. The location of this region does not favor Earth-directed CMEs. However, a...

November 09, 2021

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Long-duration M1.7 solar flare erupts from geoeffective AR 2981, CME impact expected

A long-duration M1.7 solar flare erupted from geoeffective Active Region 2981 at 03:01 UTC on November 2, 2021. The event started at 01:20 and ended at 03:50 UTC. The event was associated with a 10cm Radio Burst (tenflare) peaking at 110 sfu at 02:36 UTC. A 10cm...

November 02, 2021

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Moderately strong M1.5 solar flare erupts from AR 2887

A moderately strong M1.5 solar flare erupted from AR 2887 at 01:45 UTC on November 1, 2021. The event started at 00:57 and ended at 02:10 UTC. It was associated with a Type II Radio Emission at 01:29 UTC with an estimated velocity of 626 km/s. Type II emissions...

November 01, 2021

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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 -...

October 29, 2021

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Major, long-duration X1.0 solar flare erupts from AR 2887, Earth-directed CME produced

A major, long-duration solar flare measuring X1.0 at its peak erupted from geoeffective Active Region 2887 at 15:35 UTC on October 28, 2021. The event started at 15:17 and ended at 15:48 UTC. The event was associated with a Type II Radio Emission with an estimated...

October 28, 2021

aurora october 12 2021 by Nidheesh Dadheech

CME impacts Earth, sparks G2 - Moderate geomagnetic storm

Coronal mass ejection (CME) produced by M1.6 solar flare at 06:40 UTC on October 9, 2021, reached DSCOVR spacecraft at 01:48 UTC and Earth at 02:30 UTC on October 12, 2021. The impact sparked a G2 - Moderate geomagnetic storm. In 24 hours to 00:30 UTC on October 12,...

October 12, 2021

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Partial, asymmetric halo CME expected to reach Earth late September 30 or early October 1

A partial, asymmetric halo coronal mass ejection (CME) was produced by C1.6 solar flare from Region 2871 at 06:34 UTC on September 28, 2021. Another, relatively weak CME was produced by the same region at 12:00 UTC on September 27, with glancing influence possible....

September 29, 2021

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Moderately strong M2.8 and M1.8 solar flares erupt from AR 2871

A moderately strong solar flare measuring M2.8 at its peak erupted from Active Region 2871 at 04:42 UTC on September 23, 2021. The event started at 04:35 and ended at 04:50 UTC. The flare was associated with a Type II Radio Emission at 04:44 UTC with an estimated...

September 23, 2021

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Moderately strong M4.7 solar flare erupts from geoeffective AR 2860

A moderately strong solar flare measuring M4.7 at its peak erupted from geoeffective Active Region 2860 at 06:15 UTC on August 28, 2021. The event started at 05:39 and ended at 06:23 UTC. The flare event follows increased solar activity with numerous c-class flares...

August 28, 2021

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Glancing blow CME possible on July 23, G1 Geomagnetic Storm Watch

A glancing blow CME from the July 20 eruption could bring a chance for G1 - Minor geomagnetic storm condition on July 23, 2021. As a result, a G1 Geomagnetic Storm Watch is in effect. A ~4-degree solar filament centered at approximately N25E65 erupted from the...

July 22, 2021

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Major X1.5 solar flare erupts -- the first X-class flare of Solar Cycle 25

A major solar flare measuring X1.5 at its peak erupted on the Sun's NW limb -- most likely from the newly-formed Active Region 2838 -- on July 3, 2021, producing R3 - Strong radio blackout. The event started at 14:18, peaked at 14:29, and ended at 14:34 UTC....

July 03, 2021

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Moderately strong M2.7 solar flare erupts from Region 2838

A moderately strong solar flare measuring M2.7 at its peak erupted from the newly-formed Active Region 2838 on July 3, 2021. The event started at 07:04 UTC, peaked at 07:17, and ended at 07:22. The position of this region does not favor Earth-directed coronal mass...

July 03, 2021

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Long-duration C9.4 solar flare erupts from AR 2824, generating fast CME and S1 - Minor solar radiation storm

A long-duration C9.4 solar flare erupted from Active Region 2824 at 23:13 UTC on May 28, 2021, producing a strong coronal mass ejection (CME) and S1 - Minor proton radiation storm. The flare event was associated with Type II Radio Emission with an estimated velocity...

May 29, 2021

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Multiple Earth-directed CMEs produced over the weekend

Solar activity has increased from low to moderate levels on Saturday and Sunday, May 22 and 23, 2021, with a series of C- and M-class solar flares produced by Active Region 2824. Multiple CMEs were produced during this period, with several having Earth-directed...

May 24, 2021