[ips-sf] ASWFC Summary Forecast for 21 August - issued 2320UT/20-Aug-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 21-Aug is expected to be at the R0 level,
with a chance of R1. S0 solar radiation storm conditions are expected.
The solar wind speed is expected to be strong. G0 geomagnetic
conditions are expected, with a chance of G1 due to coronal hole high
speed wind stream effects. HF radio propagation conditions are
expected to be mostly normal. Maximum usable frequencies (MUFs) in the
Australian region are expected to be near predicted monthly values.

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