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March Equinox Puts Europe on Watch for Unusually Strong Auroras

A favorable equinox geometry boosts geomagnetic activity by easing magnetic reconnection with the solar wind.

Overview

  • Scientists say March 2026 could be among the best months of the decade for aurora visibility in parts of Europe, including Germany, though outcomes depend on actual solar eruptions.
  • The Russell–McPherron effect around the equinox statistically increases storm frequency and intensity, allowing even moderate solar wind to trigger bright displays.
  • The Sun remains in a still-active phase shortly after its 2024 peak, maintaining the potential for strong coronal mass ejections and high-speed streams.
  • Recent events in May 2024 and January 2026 showed auroras reaching unusually far south, illustrating what is possible when timing and solar output align.
  • Short-term prospects hinge on real-time measurements from L1 satellites such as ACE and DSCOVR, with operational forecasts available from NOAA.