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Geomagnetic Storms

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New X4.2 Solar Flare Erupts From AR4366 as Earlier CME Nears Earth

Forecasters expect a glancing CME to bring minor geomagnetic storm conditions.

G3 Geomagnetic Storm Possible Today as Full-Halo CME Reaches Earth

NOAA Issues G2 Geomagnetic Storm Watch as Giant Sunspot Cluster Faces Earth

Study Links Geomagnetic Disturbances to Higher Heart-Attack Rates, With Larger Effect Reported in Women

X2.7 Solar Flare Prompts Global Disruptions and Aurora Forecasts