[ips-sf] ASWFC Summary Forecast for 20 April - issued 2330UT/19-Apr-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

On UT day 20-Apr solar activity is expected to be R0-R1. S0 solar
radiation storm conditions are expected. The solar wind speed is
expected to be light. However, an increase in the solar wind speed is
expected during 21-23 Apr due to a solar coronal hole. G0 geomagnetic
conditions are expected, with an increase in geomagnetic activity
during 22-23 Apr to G1, chance G2. HF radio propagation conditions are
expected to be fair to normal. Maximum usable frequencies in the
Australian region are generally expected to be near predicted monthly
values. MUFs at Hobart were depressed 15-25% after local dawn this
morning and are expected to gradually recover. Southern Australian
region HF conditions may become degraded at times during 22-24 Apr.

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