[ips-sf] ASWFC Summary Forecast for 21 May - issued 2320UT/20-May-2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar flare activity on UT day 21-May is expected to be at the R0
level, with a chance of R1. S0 solar radiation conditions are
expected. The solar wind speed is expected to be moderate to light. G0
geomagnetic conditions are expected. 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, with the chance of mild depressions, particularly in the
southern Australian region.

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