[ips-sf] ASWFC Summary Forecast for 12 September - issued 2327UT/11-Sep-2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

Solar activity on UT day 12-Sep is expected to be at the R0-R1 level
due to a new region rotating onto the disk. S0 solar radiation storm
conditions are expected. The solar wind speed is expected to be
moderate with a declining trend. G0 conditions are expected. An
increase in geomagnetic activity is expected from 14-15 Sep due to a
coronal hole wind stream. HF radio propagation conditions are expected
to be mostly normal. Maximum usable frequencies (MUFs) in the
Australian region are expected to be near predicted monthly values.
Isolated minor shortwave fadeouts are possible.

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