Solar flare activity on UT day 12-Aug is expected to be at the R0 level. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be moderate. G0 geomagnetic conditions are expected, with a chance of G1. Global high frequency radio propagation conditions are expected to be mostly normal. Maximum Usable Frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed.