[ips-sf] ASWFC Summary Forecast for 21 June - issued 2322UT/20-Jun-2023 [SEC=OFFICIAL]

[rwc]

Solar activity on UT day 21-Jun is expected to be at R1 level, which
the chance of an R2 level flare. A solar region in the south east
solar quadrant has increased in magnetic complexity and recently
produced an R3 flare. The solar wind speed is expected to be light to
moderate with a declining trend. G0 geomagnetic conditions are
expected. Maximum usable frequencies (MUFs) are expected to be near
predicted values to 15% enhanced. HF communication conditions are
expected to be normal, with mild degradations possible during local
night hours. Increased chance of shortwave fadeouts.

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