Space weather - page 4

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Long duration M2.3 flare erupts causing S1 Minor solar radiation storm

A long duration solar flare measuring M2.3 at its peak time erupted from departing Region 2473 at 00:11 UTC on January 2, 2016. The event started at 23:10 UTC on January 1 and ended at 01:01 UTC on January 2. A Type II (estimated velocity 1019 km/s) and a Type IV...

January 02, 2016


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...

December 31, 2015

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Long duration M1.8 solar flare produces a full halo, Earth-directed CME

A long duration solar flare measuring M1.8 at its peak time erupted from central Region 2473 at 12:45 UTC on December 28, 2015. The event started at 11:20 and ended at 14:09 UTC. The flare produced a full halo CME heading directly toward Earth. A type IV radio sweep...

December 28, 2015

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Strong M4.7 solar flare erupts from Region 2473

A moderately strong solar flare measuring M4.7 at its peak erupted from Region 2473 at 00:40 UTC on December 23, 2015. The event started at 00:23 and ended at 00:52 UTC. A Type II radio sweep with estimated velocity of 1318 km/s as well as a Type IV radio sweep...

December 23, 2015

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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...

December 21, 2015

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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...

December 20, 2015


Large filament erupts on the southeast quadrant of the Sun

A large filament erupted on the southeast quadrant of the Sun during the early morning UTC hours of November 22, 2015. The eruption began at approximately 07:30 UTC and launched a coronal mass ejection (CME) into space. Although LASCO coronagraph imagery is still...

November 22, 2015


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...

November 19, 2015

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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...

November 10, 2015

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Strong M3.9 solar flare erupts from Region 2449 producing a bright CME

A strong solar flare measuring M3.9 at its peak erupted from Region 2449 at 13:12 UTC on November 9, 2015. The event started at 12:49 and ended at 13:28 UTC. A bright Coronal Mass Ejection (CME) was produced. The event was associated with a Type II (estimated...

November 09, 2015


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...

November 07, 2015


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...

November 05, 2015

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Long duration M3.7 flare erupts from Sun's central region, CME to impact Earth on November 7

A long duration solar flare measuring M3.7 at its peak erupted from geoeffective Region 2443 at 13:52 UTC on November 4, 2015. The event started at 13:31 and ended at 14:13 UTC. Radio signatures suggest a Coronal Mass Ejection (CME) was produced. The event was...

November 04, 2015

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Impulsive solar flares measuring M1.9 and M2.5 erupt near the west limb

A moderately strong solar flare measuring M1.9 erupted from Region 2445 at 03:26 UTC on November 4, 2015. The event started at 03:20, and ended at 03:29 UTC. A Type II Radio Emission with peak velocity of 790 km/s was associated with the event. Type II emissions...

November 04, 2015


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...

October 07, 2015


Multiple Coronal Mass Ejections (CMEs) erupted from western limb, impacts expected

After four days of increased solar activity, multiple Coronal Mass Ejections (CMEs) were finally observed as a part of an overarching set of coronal disruptions from the vicinity of Region 2420 and stretching southward towards Region 2422, and towards the western...

October 01, 2015

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Increased solar activity continues with multiple M-class flares on September 29

Solar activity started increasing on September 27 with M1.9 flare from geoeffective Region 2422 and continued on September 28 with several impulsive flares from Region 2422 (M7.6) and 2423 (M3.6).During the early morning hours of September 29th (by 06:43 UTC) those two

September 29, 2015