Solar flare activity on UT day 17-Oct is expected to be at the R1 level. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be moderate, declining over the UT day. G0 geomagnetic conditions are expected. Global high frequency radio propagation conditions are expected to be normal. Maximum Usable Frequencies (MUFs) in the Australian region are expected to be near predicted monthly values. Shortwave fadeouts are possible.