• Recurrent CH HSS causing geomagnetic storms

    A recurrent, negative polarity coronal hole high speed stream (CH HSS) has hit Earth's magnetic field causing geomagnetic storms on June 5, 2016. A G2 (Moderate) geomagnetic storm watch is currently in effect. This same CH HSS has affected Earth on May 8 with…

  • 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…

  • 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 -…

  • 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….

  • 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 -…

  • 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…

  • 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…

  • 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…

  • 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…