[ips-sf] ASWFC Summary Forecast for 21 June - issued 2317UT/20-Jun-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

On UT day 21-Jun solar activity is expected to be R0-R1, although
there is a small chance for isolated R3 events. The solar wind speed
is expected to be moderate to strong. G0 geomagnetic conditions are
expected. HF radio propagation conditions are expected to be mildly
degraded, especially during local dawn hours. Maximum usable
frequencies in the Australian region are expected to be near predicted
values to 20% 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