From aswfc at bom.gov.au Thu Jan 1 10:15:53 2026 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Thu, 01 Jan 2026 10:15:53 +1100 Subject: [ips-sf] ASWFC Summary Forecast for 01 January - issued 2315UT/31-Dec-2025 [SEC=OFFICIAL] Message-ID: <6955aea9.gFk+FHf+iB2cRnwl%aswfc@bom.gov.au> Solar activity on UT day 01-Jan is expected to be at R1-R2 levels. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be light to moderate. The anticipated CME arrival on 31-Dec has failed to eventuate. A glancing blow from an east directed semi-halo CME associated with an R2 (M7) flare is expected on 02-03 Jan. HF radio propagation conditions are expected to be normal. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% enhanced. Isolated 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