Space weather

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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G2 - Moderate geomagnetic storm watch in effect

A G1 - Minor geomagnetic storm watch is in effect for September 1 and a G2 - Moderate for September 2, 2021. The geomagnetic field is expected to be at quiet to unsettled conditions on August 31 due to the delayed anticipated passage of the August 26th coronal mass...

August 31, 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

sun sends wake up call

The Sun sends us a wake-up call

Two powerful solar events erupted from the Sun over the past couple of days. While they both missed Earth, 'we are very lucky they did,' Ben Davidson of the Suspicious Observers said in the video. The solar maximum is building now, and Earth's magnetic...

July 19, 2021

stratospheric radiation 2015 2021 earth to sky calculus

Cosmic rays decreasing as Solar Cycle 25 gains strength

New data provided by the students of Earth to Sky Calculus and Dr. Tony Phillips of show that cosmic radiation levels in the Earth's atmosphere are decreasing as the new solar cycle -- Solar Cycle 25 -- gains strength. The plot below shows...

July 14, 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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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...

June 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

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Moderately strong M1.1 solar flare erupts from Region 2824

A moderately strong solar flare measuring M1.1 at its peak erupted from Active Region 2824 (Alpha) at 17:11 UTC on May 22, 2021. The event started at 17:03 and ended at 17:16 UTC. Its location does not favor Earth-directed CMEs, but there is a possibility that a...

May 22, 2021

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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...

May 17, 2021

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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...

May 12, 2021

may 9 2021 cme impact forecast

Incoming CME, impact expected early May 12

Two coronal mass ejections (CMEs) with Earth-directed components were produced on the Sun on May 9, 2021. The impact is expected early Wednesday, May 12. Active Region 2833 produced a long-duration C-class solar flare measuring C4.0 at its peak at 14:49 UTC on May 9...

May 10, 2021