Forecast Discussion

Product: Forecast Discussion Issued: 2020 Jun 02 1230 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity
.24 hr Summary… Solar activity was very low. Region 2764 (N34, Lo=165) decayed to plage and was inactive. Minor B-level x-ray enhancements were observed with an area rounding the southeast limb. No Earth-directed CMEs were observed in available coronagraph imagery.
.Forecast… Very low solar activity is expected to continue on 02-04 Jun. Although Region 2764 is now inactive, the area emerging onto the disk from the southeast has continued flare potential based on recent activity.
Energetic Particle
.24 hr Summary… The greater than 2 MeV electron flux was normal to moderate and the greater than 10 MeV proton flux was at background values.
.Forecast… The greater than 2 MeV electron flux is expected to continue at primarily normal levels, with a few brief moderate periods 02-04 Jun. The greater than 10 MeV proton flux is expected to continue at background.
Solar Wind
.24 hr Summary… Solar wind parameters suggested a mildly-disturbed IMF. Total field peaked at 8 nT, and remained marginally elevated through the reporting period. Bz was southward in excess of -5 nT for 6 to 8 hours starting around 01/18 UTC. Solar wind speed generally decreased from about 380 km/s to 325 km/s by 02/12 UTC. The phi angle was predominantly negative, but underwent positive sector shifts around 01/17 UTC.
.Forecast… Solar wind conditions are anticipated to be nominal, but mild enhancements remain possible over the next three days (02-04 Jun).
Geospace
.24 hr Summary… The geomagnetic field was quiet to unsettled due to a mildly-enhanced solar wind environment.
.Forecast… Active conditions are expected on 02 June with sustained, elevated solar wind conditions. Mostly quiet conditions are anticipated on 03 and 04 Jun with isolated unsettled periods.
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