[ips-sf] ASWFC Summary Forecast for 21 September - issued 2314UT/20-Sep-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 21-Sep is expected to be R0,chance R1. S0
solar radiation storm conditions are expected. The solar wind speed is
expected to be light. G0 geomagnetic conditions are expected. HF radio
propagation conditions are expected to be mostly normal. Maximum
usable frequencies in the Australian region are expected to be near
predicted values. Isolated minor shortwave fadeouts are possible.

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