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13h ago

NOAA Forecasts New Year’s Eve G1 Geomagnetic Storm With Aurora Potential Across Northern U.S.

Observers should rely on real-time alerts given uncertain CME arrival timing.

Maps showing where the northern lights may be visible on New Year's Eve.
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Overview

  • NOAA’s Space Weather Prediction Center predicts a minor G1 geomagnetic storm overnight Dec. 31 into Jan. 1.
  • This activity is linked to a coronal mass ejection that followed an M4.2 solar flare detected on Dec. 28.
  • Auroras could be visible from higher-latitude states including Alaska, Washington, Idaho, Montana, the Dakotas, Minnesota, Wisconsin, Michigan and Maine.
  • Timing and intensity depend on solar-wind speed, so NOAA’s 30‑minute aurora forecast and services like SpaceWeatherLive and aurora apps are recommended for updates.
  • Scientists expect frequent opportunities to see auroras in 2026 as the active solar cycle tapers, with improved forecasting from missions such as Parker Solar Probe and a reminder that stronger CMEs can threaten power grids and satellites.