[ips-sf] ASWFC Summary Forecast for 19 September - issued 2320UT/18-Sep-2023 [SEC=OFFICIAL]

[rwc]

On UT day 19-Sep, solar activity is expected to be R0-R1 with a chance
for R2. The solar wind speed is expected to be moderate to strong. G0
geomagnetic conditions are expected, although there is a chance for a
period of G1 as a geomagnetic storm that commenced from 18/1300 UT
subsides. HF radio propagation conditions are expected to be degraded
at high and middle latitudes. Maximum usable frequencies (MUFs) are
expected to be 15-25% 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