[ips-sf] ASWFC Summary Forecast for 20 October - issued 2319UT/19-Oct-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 20-Oct is expected to be at R0-R1 levels. S0
solar radiation storm conditions are expected. The solar wind speed is
expected to be moderate to strong. G0 geomagnetic conditions, with a
chance of G1 are expected 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. 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