[ips-sf] ASWFC Summary Forecast for 20 December - issued 2320UT/19-Dec-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 20-Dec is expected to be at the R0 level. S0
solar radiation storm conditions are expected. The solar wind speed is
expected to be moderate to strong over the UT day. G0 geomagnetic
conditions are expected. HF radio propagation conditions are expected
to be normal across the Australian region. 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