A major solar flare measuring X1.0 erupted from Active Region 3664 at 05:09 UTC on May 8, 2024. The event started at 04:37 and ended at 05:32 UTC. Preliminary modeling efforts showed CME arrival time early on May 11. This is the second X-class solar flare of the day, following another X1.0 at 01:41 UTC.
A powerful, long-duration solar flare measuring X4.5 erupted from Active Region 3663 at 06:35 UTC on May 6, 2024. The event started at 05:38 and ended at 06:47 UTC.
A major solar flare measuring X1.2 erupted from Active Region 3663 (beta-gamma-delta) at 11:54 UTC on May 5, 2024. The event started at 11:41 and ended at 12:16 UTC. This is the second X-class solar flare of the day and the third from Region 3663 since X1.6 on May 3.
A major solar flare measuring X1.3 erupted from Active Region 3663 at 06:01 UTC on May 5, 2024. The event started at 05:47 and ended at 06:09 UTC. This is the second X-class solar flare from this region since X1.6 at 02:22 UTC on May 3.
A very strong solar flare measuring M9.1 erupted from Active Region 3663 at 06:19 UTC on May 4, 2024. The event started at 06:02 and ended at 06:30 UTC. This is the 6th and the strongest M-class solar flare since X1.6 on May 3.
A major solar flare measuring X1.6 erupted from Active Region 3663 (beta-delta) at 02:22 UTC on May 3, 2024. The event started at 02:11 and ended at 02:27 UTC. A G1 – Minor geomagnetic storm is in effect for May 5 and a G2 – Moderate for May 6 (UTC day) due to the potential arrival of a CME produced by this flare.
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.
On April 23, 2024, a significant solar event occurred involving four simultaneous explosions on the Sun, characterized by the eruption of three sunspots and a magnetic filament. This unique activity spanned hundreds of thousands of kilometers and reached a combined X-ray output of M3.4, marking it as a notable instance of sympathetic solar flares.
Solar wind parameters in 24 hours to 00:30 UTC on April 17, 2024, continued to be enhanced by a passing coronal mass ejection (CME) which impacted Earth around 17:25 UTC on April 15 (launched from the Sun on April 12). Two more CMEs, produced on April 14 and 15, are expected to make a combined impact at around 00:00 UTC on April 18.
A G1 – Minor geomagnetic storm watch is in effect for April 14 and 15, 2024 due to two incoming coronal mass ejections (CMEs) — launched on April 11 and 12, combined with coronal hole high speed stream (CH HSS) influences.
