Solar flare activity on UT day 13-Oct is expected to be at the R0 level, with a chance of R1. S0 solar radiation storm conditions, with a slight chance of S1 are expected. The solar wind speed is expected to be moderate to strong, increasing over the UT day. G1 geomagnetic conditions, with a chance of G2 are expected. Global high frequency radio propagation conditions are expected to be fair to normal. Maximum Usable Frequencies (MUFs) in the Australian region are expected to be depressed by up to 15% compared with predicted monthly values.