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2w ago

Aurora Chances Shift to Wednesday and Thanksgiving as NOAA Sees Lingering G1 Storm

NOAA expects high‑speed solar wind from a coronal hole to sustain minor geomagnetic activity, raising the chance for Northern Lights at U.S.–Canada border latitudes.

Northern Lights, also known as the aurora borealis, captured at Pier Cove Park in Ganges Township on Nov. 12, 2025.
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Overview

  • Forecasters now call for Kp around 4 on Wednesday night with a similar outlook for Thanksgiving night after a Kp near 5 was predicted for Tuesday.
  • The geomagnetic activity is driven by a fast solar wind stream from a positive‑polarity coronal hole, not a flare or coronal mass ejection.
  • Viewing remains most plausible in northern-tier states, with Tuesday’s NOAA viewlines stretching to as many as 15 states including Alaska, Montana, Minnesota, Michigan, New York and Maine.
  • NOAA classifies the expected storms as G1 (Minor), which typically bring limited operational impacts while expanding aurora visibility farther south than usual.
  • Observers should seek dark northern horizons and use NOAA’s 30‑minute aurora forecast or aurora apps while monitoring real‑time Bz orientation and local cloud cover.