Solar activity on UT day 29-Oct is expected to be at the R0 level. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be moderate to strong. G1 geomagnetic conditions are expected, due to coronal hole high speed wind stream effects. HF radio propagation conditions are expected to be mostly fair. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values, with a chance of mild depressions in the southern Australian region.