[ips-sf] ASWFC Summary Forecast for 11 October - issued 0951UT/11-Oct-2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

A coronal mass ejection (CME) shock arrival was observed in the solar
wind at 10/1447UT. An increase in geomagnetic activity followed, with
G4 planetary conditions observed. G3 geomagnetic conditions have been
observed in the Australian region. Solar activity on UT day 11-Oct is
expected to be at R1-R2 levels. The solar wind speed is expected to be
very strong. G4 geomagnetic conditions are expected due to ongoing CME
effects. S1 solar radiation storm conditions are expected. HF radio
communication conditions are expected to be poor. Maximum useable
frequencies (MUFs) are expected to be 20-40% depressed. Shortwave
fadeouts are possible. Auroras may be sighted at middle to high
latitudes during local night hours.

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