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NOAA Issues Geomagnetic Storm Watch After Strong Solar Flares
- On Nov. 4, 2025, the Sun erupted with two X-class flares, X1.8 from Active Region 4274 and X1.1 beyond the east limb, causing strong radio blackouts across the Americas and the Pacific.
- Region 4274, a magnetically complex sunspot cluster with a beta-gamma-delta magnetic configuration, is rotating into a more Earth-facing position during the Sun's active phase, raising flare risks.
- Both flares also launched coronal mass ejections largely off the limb; the X1.8 flare produced Type IV radio emissions, a 160 sfu Tenflare, and a partial halo CME visible in coronagraph imagery.
- NOAA is warning of minor G1 to moderate G2 geomagnetic storming late Nov. 6 into Nov. 7, with a glancing shock possibly merging with a coronal hole high-speed stream and auroras visible in 14 U.S. states.
- Because CMEs travel slowly, the SWPC has raised flare probabilities to 65% for M-class and 15% for X-class flares through November 7, with ongoing activity confirmed by an M7.4 flare on Nov. 5.
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Within a few days, several coronal mass ejections (CMEs) could hit the Earth. The Space Weather Prediction Center anticipates a strong geomagnetic storm and a bright sky over Central Europe.
A strong geomagnetic storm is under way, at G3 level on a scale ranging from G1 to G5, which could cause damage to power transmission lines and satellite communications, such as GPS navigation systems, and is responsible for... (ANSA)
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Total News Sources44
Leaning Left3Leaning Right6Center8Last UpdatedBias Distribution47% Center
Bias Distribution
- 47% of the sources are Center
47% Center
L 18%
C 47%
R 35%
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