Earth’s Magnetic Field Today (Nov. 11, 2025): Equatorial Polarity Twist, South Atlantic Anomaly Expands, and NOAA Issues G2–G3 Geomagnetic Storm Watches
Updated: November 11, 2025 Key points What’s new today Geomagnetic storm watches (Nov. 11–13): The U.S. National Oceanic and Atmospheric Administration (NOAA) says several coronal mass ejections are expected to begin arriving later today, prompting watches for G2 (Moderate) on