[ips-sf] ASWFC Summary Forecast for 20 May - issued 2328UT/19-May-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 20-May 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 are
expected, with a chance of G1 due to coronal hole high speed wind
stream effects. HF radio propagation conditions are expected to be
normal to fair. Maximum usable frequencies (MUFs) in the Australian
region are expected to be near predicted monthly values to 15%
depressed. 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