Solar activity is expected to be at R0-R1 levels on UT day 30-May, with a chance for R2 flares. The solar wind speed is expected to be moderate to light. G0 geomagnetic conditions are expected. Maximum usable frequencies (MUFs) are expected to be normal during daylight hours, with mild depressions likely during local night hours. HF communication conditions are expected to have some degradations in low and high latitude regions. Middle latitude regions are expected to be mostly normal.