Multiple CMEs impact Earth, sparking G3 – Strong geomagnetic storm

Multiple CMEs impact Earth, sparking G3 – Strong geomagnetic storm

Multiple coronal mass ejections (CMEs) produced on November 27 and 28, 2023, impacted Earth on December 1, sparking G3 – Strong geomagnetic storm. Similarly to the last G3 storm, on November 5, spectacular aurora sightings were reported from both hemispheres.

Geomagnetic storm reaches G3 – Strong level after dual CME impact

Geomagnetic storm reaches G3 – Strong level after dual CME impact

A G3 – Strong geomagnetic storming was observed on Sunday, November 5, 2023, as a result of the impact of two successive coronal mass ejections (CMEs) from the Sun. The storm produced auroras extending into the lower latitudes such as Colorado and Texas in the United States and Greece in Europe, which is unusual for such regions. Many people across both hemispheres have also recorded and captured rare red aurora.

Rare red auroras seen as far south as France

Rare red auroras seen as far south as France

The Coronal Mass Ejection (CME) that was launched on September 22, 2023, hit Earth’s magnetic field on September 24 at 20:43 UTC, sparking a moderate G2 – Moderate geomagnetic storm and rare red auroras. Initially detected in Canada where magnetometer readings spiked by 129 nT, the event later became visible across Europe, reaching as far south as France.

Solar radiation storm, CME produced by M4.2 flare expected to hit Earth on May 11

Solar radiation storm, CME produced by M4.2 flare expected to hit Earth on May 11

High solar activity was observed on May 10, 2023, primarily due to the enhanced flare potential of Region 3296. The most significant event from the region was an M4.2 flare, which resulted in a well-defined partial halo Coronal Mass Ejection (CME) signature, expected to hit Earth sometime after 18:00 UTC on May 11. The 10 MeV proton flux peaked at 38 pfu, dropped below Minor – S1 solar radiation storm levels by 12:35 UTC on May 9, but still above average, and then rose back over the 10 pfu threshold due to the May 7 CME passage.

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.

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.

CME reaches Earth, sparking G1 – Minor geomagnetic storm

CME reaches Earth, sparking G1 – Minor geomagnetic storm

Coronal mass ejection (CME) produced by a long-duration C5.6 solar flare on July 21, 2022, hit Earth’s magnetic field at 02:59 UTC on July 23, 2022, sparking G1 – Minor geomagnetic storm.