Thursday 19 May
last updated 18/2326 UT
Solar flare activity is expected to be at R0-R1 levels, with a slight chance of R2 level on UT day 19-May. The solar wind speed is expected to be at light to moderate levels. G0 geomagnetic conditions are expected for Australia. High-frequency radio communications are expected to be mostly normal, although short-wave fadeouts are possible.