[Ips-geo-warning] ASWFC GEOMAGNETIC WARNING issued 2317 UT on 26 Jun 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING 25/48
ISSUED AT 2317UT/26 JUNE 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

The Earth is currently connected to two coronal holes which have 
caused very strong solar wind speeds of 700-800 km/s. Any prolonged 
period of solar wind parameter Bz oriented southward will be 
favourable for geomagnetic activity. Generally G0-G1 geomagnetic 
conditions are expected over the next few days but isolated periods 
of G2 are possible.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 26-27 JUNE 2025
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GEOMAGNETIC ACTIVITY FORECAST
26 Jun:  G0-G1, chance G2
27 Jun:  G0-G1, chance G2

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