Geomagnetic storms - page 4

probability_of_visible_aurora_obs_19 05_utc_2apr2016_f

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 -...

April 02, 2016

ch02_15mar2016_soa_aia

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....

March 15, 2016

aurora_11march2016_by_sachalayos_at_fairbanks

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...

March 11, 2016

ian_collins_at_hereford_uk_on_7mar2016_via_spaceweather_f

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 -...

March 06, 2016

ch_16feb2016_f

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...

February 16, 2016

aurora_by_zoltan_kevwell_f

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

m2 8_21dec2015_f

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

kpindex_dec19 20 2015_f_zk_f

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

5filament_eruption_cme_16nov2015_f

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

aurora_forecast_10nov2015_17 30_utc_f

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

aurora_forecast_7nov2015_f

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

airplane_aurora_cmps_f

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

aurora_by_sarah_dangelo_on_oct72015_at_paradise_michigan_f

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

may122015_aurora_by_(c)_zoltan_kenwell_f

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

September 20, 2015

southern_lights_minoru_yoneto_new_zealand_sep92015_f_

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

September 11, 2015

solar_storm_news_september_10_2015_with_tamitha_skov_f

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

September 10, 2015

aurora_fct_sep72015_f

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

September 07, 2015