[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 0149 UT on 12 Sep 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/68
ISSUED AT 0144UT/12 SEPTEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A large equatorial coronal hole is currently crossing the solar 
central meridian. The Earth is expected to enter the high speed 
wind stream from this hole from late in the UT day on 14-Sep. 
G1-G2 geomagnetic conditions are forecast on 15-Sep.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 14-16 SEPTEMBER 2025
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
14 Sep:  G0, with a chance of G1 late in UT day.
15 Sep:  G1-G2
16 Sep:  G1

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