G3 – Strong geomagnetic storm following CME impact produced by X9.0 solar flare
The coronal mass ejection (CME) produced by the X9.0 solar flare on October 3, 2024, impacted Earth around 07:30 UTC on October 6, elevating solar wind parameters.
Models show multiple incoming CMEs, G3 – Strong or higher geomagnetic storm forecast
At least three coronal mass ejections (CMEs) are expected to strike Earth from October 5 to 7, prompting a G3 – Strong Geomagnetic Storm Watch, with the possibility of G4 – Severe geomagnetic storm conditions.
CME impacts Earth, sparking G3 – Strong geomagnetic storm and widespread red aurora
Coronal mass ejection (CME) produced by a filament eruption early Sunday, September 8, 2024, hit Earth at around 03:50 UTC on September 12. The impact sparked G3 – Strong geomagnetic storming and widespread red aurora.
G3 – Strong geomagnetic storm following CME impact produced by X1.3 solar flare
The coronal mass ejection (CME) produced by the X1.3 solar flare on August 14, 2024, impacted Earth around 14:30 UTC on August 18, producing G3 – Strong geomagnetic storming.
G3 – Strong geomagnetic storm following multiple CME impacts
A G3 – Strong geomagnetic storming was observed on August 12, 2024, following multiple impacts from coronal mass ejections (CMEs) produced since August 7.
G3 – Strong geomagnetic storm in progress
A coronal mass ejection (CME) produced by a long-duration M8.2 solar flare at 07:09 UTC on August 1, 2024, reached Earth early on August 4, causing G3 – Strong geomagnetic storming.
G5 – Extreme geomagnetic storm likely as another set of CMEs merges and impacts Earth on May 12
A fast halo coronal mass ejection (CME) produced by the X5.8 solar flare from Region 3664 at 01:23 UTC on May 11, 2024, is expected to merge with the previous in-transit CMEs and impact Earth by 12:00 UTC on May 12.
G4 – Severe or greater geomagnetic storm forecast as multiple CMEs merge and impact Earth on May 11
Multiple coronal mass ejections (CMEs) — of which at least 4 halo CMEs produced by Active Region 3664 over the past few days — will hit Earth, starting late May 10 into May 11, 2024.
At least 5 CMEs heading toward Earth, G4 – Severe or Greater Geomagnetic Storm Watch in effect for May 11
At least five coronal mass ejections (CMEs) produced over the past 3 days are heading toward Earth. The first impact is expected on May 9 and the following over the next 3 – 4 days.
Two stealth CMEs impact Earth, producing G3 – Strong geomagnetic storm
Two stealth coronal mass ejections (CMEs) impacted Earth over the past 24 hours, sparking G1 – Minor to G3 – Strong geomagnetic storming. A G3 – Strong (or greater) Geomagnetic Storm Warning remains in effect through 21:00 UTC on May 2, 2024.
