On UT day 21-Jun solar activity is expected to be R0-R1, although there is a small chance for isolated R3 events. The solar wind speed is expected to be moderate to strong. G0 geomagnetic conditions are expected. HF radio propagation conditions are expected to be mildly degraded, especially during local dawn hours. Maximum usable frequencies in the Australian region are expected to be near predicted values to 20% depressed. S0 solar radiation storm conditions are expected.