Thursday 01 January
last updated 31/2315 UT
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.