Solar activity increased to high levels on December 29 and 30, 2024, producing more than 20 M- and 3 X-class solar flares in just over 24 hours. At least one of these events produced an Earth-directed coronal mass ejection (CME) – with impact expected on December 31. As a result, a G3 – Strong Geomagnetic Storm Watch is in effect.
A major X1.1 solar flare erupted from Active Region 3936 at 07:18 UTC on December 29, 2024. The event started at 07:08 and ended at 07:34 UTC. Two CMEs were noted in LASCO imagery following multiple solar flares today. Initial analysis indicates at least one has a likely Earth-directed component, with a possible arrival early on December 31.
A powerful coronal mass ejection (CME) with an estimated speed of 3 161 km/s erupted on the Sun’s farside around 16:00 UTC on Tuesday, December 17, 2024.
A coronal mass ejection (CME) produced on December 13, 2024, impacted Earth at 05:19 UTC on December 17, sparking G1 – Minor geomagnetic storming. The K-index reached 5 at 08:07 UTC, with effects limited to areas poleward of 60 degrees geomagnetic latitude. Enhanced solar wind conditions, driven by a positive polarity coronal hole high-speed stream (CH HSS), are expected to continue through December 18. Meanwhile, solar activity remains low, with a 30-40% chance of M-class flares and a 5% chance of X-class flares through December 19.
A major solar flare measuring X2.2 erupted from Active Region 3912 at 09:06 UTC on December 8, 2024. The event started at 08:50 and ended at 09:10 UTC.
A coronal mass ejection (CME) associated with filament eruption near Region 3901 at around 20:24 UTC on November 25, 2024, is forecast to reach Earth late November 28 (UTC).
A strong solar flare measuring M9.4 erupted beyond the Sun’s northeastern limb at 07:42 UTC on November 25, 2024. The event started at 07:24 and ended at 08:03 UTC.
A strong solar flare erupted well beyond the west limb of the Sun at approximately 18:00 UTC on November 21, 2024. This event produced a large coronal mass ejection (CME) and sparked a solar radiation storm on Earth reaching S2 – Moderate levels on November 22.
A strong solar flare measuring M9.4 erupted from Active Region 3889 at 12:06 UTC on November 10, 2024. The event started at 11:51 and ended at 12:14 UTC.
A major solar flare registered as X2.3 erupted from Active Region 3883 at 13:40 UTC on November 6, 2024. The event started at 13:24 and ended at 13:46 UTC. Meanwhile, a glancing blow from the CME associated with the M3.8 on November 4 is expected on November 7.
