Unexpected G4 – Severe geomagnetic storm

Unexpected G4 – Severe geomagnetic storm

A combination of factors led to unexpectedly strong geomagnetic storm levels on Thursday, March 23, and Friday, March 24, 2023. The storm reached G3 – Strong levels at 14:49 UTC on March 23 and escalated to G4 – Severe at 04:04 UTC on March 24. The precise cause of this geomagnetic storm is still under investigation, but it is possible that coronal mass ejections (CMEs) from March 20 to 21 played a role.

G2 – Moderate geomagnetic storming due to CH HSS effects combined with CME

G2 – Moderate geomagnetic storming due to CH HSS effects combined with CME

Our planet is under the influence of a positive polarity coronal hole high speed stream (CH HSS) today, March 15, 2023, combined with an impact from the coronal mass ejection (CME) produced on March 10. G2 – Moderate geomagnetic storm threshold was reached at 05:59 UTC and the geomagnetic field is likely to reach G1 – Minor geomagnetic storming levels, with a chance for isolated G2 – Moderate periods on March 15 and 16 due to any flanking effects from CMEs produced on March 11 to 13.

CME impacts Earth, sparking G3 – Strong geomagnetic storm

CME impacts Earth, sparking G3 – Strong geomagnetic storm

Coronal mass ejection (CME) produced by a long-duration M3.7 solar flare at 20:30 UTC on February 24, 2023, reached Earth at 19:25 UTC on February 26. A glancing blow impact from CME produced by M6.3 solar flare on February 25 is expected during the afternoon hours on February 27. The resulting geomagnetic storm activity is expected to be significant, with both CMEs interacting with a negative-polarity coronal hole high-speed stream, potentially producing G3 – Strong or higher levels of geomagnetic storming.

Long-duration X2.2 solar flare erupts from Region 3229, full halo CME produced

Long-duration X2.2 solar flare erupts from Region 3229, full halo CME produced

A long-duration solar flare measuring X2.2 at its peak erupted from AR 3229 (beta) at 20:16 UTC on February 17, 2023. The event started at 19:38 and ended at 20:50 UTC. A full halo Coronal Mass Ejection (CME) was produced and it appears there is an Earth-directed component. The estimated time of arrival is February 20.

Earth hit by slow-moving CME, triggers G1-Minor geomagnetic storm; second CME on the way

Earth hit by slow-moving CME, triggers G1-Minor geomagnetic storm; second CME on the way

A slow-moving coronal mass ejection (CME) that left the sun on February 11, 2023, reached our planet today, causing G1 – Minor geomagnetic storming. A partial halo CME, possibly triggered by a filament eruption near Region 3220 on February 14 is forecast to impact Earth this week, which could result in disruptions to communication networks, power grids, and satellites. The timing and extent of the impact are still being analyzed.