Sunday 12 July
last updated 11/2320 UT
Solar flare activity on UT day 12-Jul is expected to be at the R0 level, with a chance of R1. S0 solar radiation storm conditions are expected. The solar wind speed is expected to be strong to very strong over the UT day. G0-G1 geomagnetic conditions are expected. Global high frequency radio propagation conditions are expected to be fair. Maximum Usable Frequencies (MUFs) in the Australian region are expected to be depressed by 10-15% compared with predicted monthly values.