Space weather

nasa sdo aia304 0959z november 24 2021 f

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

m2 0 solar flare november 9 2021 f

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

aurora november 3 2021 Markus Varik f

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,...

November 04, 2021

lasco c3 c2 november 2 05z f

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...

November 03, 2021

sdo aia 301 0318z november 2 2021 f

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

sdo aia 304 november 1 2021 f

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

cme produced by x1 0 solar flare october 28 2021 f2

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

X1 0 solar flare october 28 2021 aia 304 f

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

partial halo cme sep 28 2021 soho lasco c3 f

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

m2 8 solar flare september 23 2021 f

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

sdo aia 304 0619z august 28 2021 f

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

sdo aia 131 0615z august 28 2021 f

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

sdo aia 171 july 20 2021 1646z f

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 SpaceWeather.com 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

X1 5 solar flare july 3 2021 f

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