[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 0518 UT on 02 Oct 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/76
ISSUED AT 0517UT/02 OCTOBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Due to solar wind conditions being favourable for geomagnetic 
activity with prolonged southward Bz, periods of G2-G3 are possible 
on UT day 2-Oct. Due to further expected coronal hole activity, 
G1-G2 geomagnetic conditions are expected over 3-4 Oct.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 02-04 OCTOBER 2025
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
02 Oct:  G1-G2, with isolated G3 periods
03 Oct:  G1-G2
04 Oct:  G1-G2

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