Space weather - page 11


G2 - Moderate geomagnetic storm

Enhanced solar wind conditions have fueled elevated geomagnetic field activity early May 2, 2016. Geomagnetic storms reaching G2 - Moderate levels have been observed. Geomagnetic K-index of 5 (G1 - Minor geomagnetic storm) threshold was first reached at 00:37 UTC on...

May 02, 2016

sdo_aia_304_soho_lasco_c2_and_c3_m6 7_sf_cme_18apr2016_f3

Impulsive solar flare measuring M6.7 erupted from Region 2529

An impulsive solar flare measuring M6.7 (R2 - Moderate radio blackout) erupted from Active Region 2529 at 00:29 UTC on April 18, 2016. The event started at 00:14 and ended at 00:39 UTC. This was the first M-class solar flare since M1.1 on February 15, 2016, the...

April 18, 2016

geomag_12_ _15_apr_2016_f

CH HSS causing isolated periods of G1 - Minor geomagnetic storming

Earth is under the influence of negative polarity coronal hole high speed stream (CH HSS) since late April 12, 2016. This is causing isolated periods of G1 - Minor geomagnetic storming. Geomagnetic K-index of 5 (G1 - Minor geomagnetic storm) threshold was first...

April 14, 2016

aurora_forecast_22 05_ut_7apr2016_f

Geomagnetic storm in progress

A geomagnetic storm reaching G1 - Minor levels is currently in progress as Earth enters a stream of positive polarity high-speed solar wind. Geomagnetic K-index of 5 (G1 - Minor geomagnetic storm) threshold was reached at 20:40 UTC on April 7: Space Weather Message...

April 07, 2016

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


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


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


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


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

m1 0_14feb2016_f

Region 2497 produces M1.0 solar flare

'Beta-Gamma-Delta' classified Active Region 2497 produced an M1.0 solar flare at 19:26 UTC on February 14, 2016. The event started at 19:18 and ended at 19:29 UTC. After M1.0 at 10:47 UTC on February 12 and M1.8 at 15:24 UTC on February 13, this is the third...

February 14, 2016

m1 8_13feb2016f

Moderately strong M1.8 solar flare erupts from Region 2497

A moderately strong solar flare measuring M1.8 at its peak time erupted from 'Beta-Gamma-Delta' classified Region 2497 at 15:24 UTC on February 13, 2016. The event started at 15:16 and ended at 15:24 UTC. There were no radio signatures that would suggest a...

February 13, 2016

partial halo_cme_11feb2016_f

Asymmetric, Earth-directed partial-halo CME and M1.0 solar flare erupted from Region 2497

An asymmetric partial-halo Coronal Mass Ejection (CME) erupted from Region 2497 late February 11, 2016. The CME was, at least in part, produced by a long duration C8.9 solar flare that peaked at 21:03 UTC. Associated with the event were Type II and Type IV radio...

February 12, 2016


Cosmic ray intensification trend continues

An intensification trend of cosmic rays activity reported last month by continues. The latest balloon flight over California on February 5 observed the highest value yet. The gathered data shows that cosmic rays in the mid-latitude stratosphere are...

February 10, 2016


Cosmic radiation intensifying as we enter another Solar Minimum

An increased activity of cosmic rays has been observed around the Arctic Circle by the neutron monitors during the last year. The same trend was also noted in an independent measurement project carried out by the and the students of Earth to Sky...

January 28, 2016


Prolonged CME effects spark G1 Minor geomagnetic storm

Prolonged effects of a partial-halo CME impact, produced by the filament eruption just of center disk late on January 14, 2016, is causing a G1 Minor geomagnetic storm on January 20, 2016. The CME reached our planet just before 21:00 UTC on January 18. Geomagnetic...

January 20, 2016

long_duration_m2 3_solar_flare_2jan2015_f

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