Solar activity on UT day 07-Sep is expected to be at R0-R1. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be moderate. G1 geomagnetic conditions are expected due to the influence of a coronal hole wind stream and an anticipated weak CME arrival. HF radio propagation conditions are expected to be fair to normal, with fair conditions expected during local night hours. Maximum usable frequencies (MUFs) in the Australian region are expected to be depressed 15% to near predicted monthly values. Isolated minor shortwave fadeouts are possible.