Solar flare activity on UT day 9-Jun is expected to be at R0-R1 levels. S0 solar radiation storm conditions are expected.,The solar wind speed is expected to be moderate. G0-G1 geomagnetic conditions are expected due to the chance of a late CME arrival. Global HF radio propagation conditions are expected to be mostly normal, with mild degradations possible if geomagnetic activity eventuates. Maximum usable frequencies are expected to trend to near predicted monthly values.