G3 – Strong geomagnetic storm on September 30

A geomagnetic storm reached G3 – Strong levels on September 30, after a coronal mass ejection…

Region 4232 produces multiple M-class flares with CMEs, unsettled to active geomagnetic field expected

Solar activity reached high levels on September 28, with multiple M-class flares from Region 4232. An…

G3 – Strong geomagnetic storm sparks auroras down to Texas

Solar wind speeds increased from 320 km/s to around 650 km/s after 23:00 UTC on September…

G1 – Minor geomagnetic storm watch issued for September 14

A G1 – Minor Geomagnetic Storm Watch has been issued by the SWPC for September 14,…

CME impact and high-speed stream forecast to enhance geomagnetic activity through September 8

A large filament eruption was observed at 19:45 UTC on September 4, 2025, followed by at…

Long-duration M2.7 solar flare launches Earth-directed CME, impact expected late on September 1

A long-duration solar flare measuring M2.7 at its peak erupted at 20:02 UTC on August 30,…

CME impacts Earth, sparking G2 – Moderate geomagnetic storming

A coronal mass ejection (CME) produced by the August 30, 2025, long-duration M2.7 solar flare impacted…

Prominence eruption produces large CME off southeast limb

The event was accompanied by a slow rise in X-ray flux, peaking at C1.6 at 07:11…

G2 – Moderate geomagnetic storm watch issued for August 8, 2025

A G2 – Moderate geomagnetic storm watch has been issued by the National Oceanic and Atmospheric…

CME modeling suggests glancing blow to Earth from M4.4 flare produced by AR 4168

A moderately strong M4.4 solar flare erupted from Active Region 4168 at 15:53 UTC on August…