[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 2028 UT on 04 Oct 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/77
ISSUED AT 2027UT/04 OCTOBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

An M1.5 solar flare from solar region AR4236 at 03/0523UT was 
associated with a minor coronal mass ejection which has been 
modelled as a weak arrival at 06/0500UT +/- 12 hours. G1-Minor 
geomagnetic storm periods are possible during 06-07 Oct.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL MASS EJECTION
FROM 06-07 OCTOBER 2025
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
06 Oct:  G1 periods second half of UT day
07 Oct:  G1 periods first half of UT day

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