[ips-sf] ASWFC Summary Forecast for 21 April - issued 2318UT/20-Apr-2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

On UT day 21-Apr solar flare activity is expected to be R0. The solar
wind speed is expected to be moderate to strong. G0 geomagnetic
conditions are mostly expected, with a chance of G1. HF radio
propagation conditions are expected to be mildly degraded. Maximum
usable frequencies in the Australian region are expected to be near
predicted values to 10-15% depressed. S0 solar radiation storm
conditions are expected.

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