Forecast Discussion

Product: Forecast Discussion Issued: 2020 May 23 0030 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity
.24 hr Summary… Solar activity continued at very low levels. No Earth-directed CMEs were observed in available satellite imagery.
.Forecast… Solar activity is expected to persist at very low levels 23-25 May.
Energetic Particles
.24 hr Summary… The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux remained at background values.
.Forecast… The greater than 2 MeV electron flux is expected to continue at normal to moderate levels 23-25 May and the greater than 10 MeV proton flux is expected to remain at background levels.
Solar Wind
.24 hr Summary… Solar wind parameters, as measured by the DSCOVR spacecraft, reflected nominal solar wind conditions. Total magnetic field strength was between 1-7 nT. Solar wind speeds ranged from ~300-375 km/s. Phi angle was variable.
.Forecast… Solar wind parameters are expected to remain at near background levels, with occasional enhancements possible, due to weak CH HSS influence 23-25 May.
.24 hr Summary… The geomagnetic field was at quiet levels.
.Forecast… The geomagnetic field is expected to be at mostly quiet levels, with a chance of isolated unsettled periods, 23-25 May as intermittent, weak CH HSS effects occur.
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