[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 2328 UT on 30 Dec 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/104
ISSUED AT 2327UT/30 DECEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

G1-G2 geomagnetic conditions are expected on 31-Dec due to the 
combined effects of a coronal hole high speed wind stream from 
a northern hemisphere coronal hole and the arrival of a CME first 
observed on 28-Dec.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL MASS EJECTION
FROM 31 DECEMBER 2025 TO 01 JANUARY 2026
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
31 Dec:  G1-G2
01 Jan:  G0-G1

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au