Geomagnetic Warning

(last updated 18 Dec 2025 05:00 UT)

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/100 ISSUED AT 0026UT/15 DECEMBER 2025 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. The Earth is expected to enter a coronal hole wind stream on 18-Dec, there may be an increase in geomagnetic activity from late in the UT day on 17-Dec. INCREASED GEOMAGNETIC ACTIVITY EXPECTED FROM 17-18 DECEMBER 2025 _____________________________________________________________ GEOMAGNETIC ACTIVITY FORECAST 17 Dec: Mostly G0, chance of G1 toward the end of the UT day 18 Dec: G1, chance of an isolated G2 period early in the UT day.

The Space Weather API provides the current geomagnetic warning status.