Solar activity on UT day 09-Jan is expected to be at the R1 level, with a chance of R2. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be moderate to strong throughout the UT day. G1 geomagnetic conditions are expected. HF radio propagation conditions are expected to be Fair-Normal across the Australian region. Maximum usable frequencies (MUFs) in the Australian region are expected to be depressed 10-15% compared with predicted monthly values. Isolated shortwave fadeouts are possible.