Product: Forecast Discussion Issued: 2021 May 08 0030 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
.24 hr Summary… Solar activity reached moderate levels. Newly numbered Region 2822 (N18E70, Cso/beta) continued to rotate into view and produced an M3.9/1n flare at 07/1904 UTC. This event was accompanied by Type II (848 km/s) and Type IV radio sweeps, as well as dimming around the region in SUVI 195 imagery. Further analysis will occur to determine if there is an Earth-directed component to the CME as coronagraph imagery becomes available.
.Forecast… Solar activity is expected to be at very low levels, with a slight chance for C-class flares on 08-10 May.
.24 hr Summary… The greater than 2 MeV electron flux was normal to moderate and the greater than 10 MeV proton flux continued at background values.
.Forecast… The greater than 2 MeV electron flux is expected to be normal to moderate 08-10 May and the greater than 10 MeV proton flux is expected to remain at background.
.24 hr Summary… Solar wind parameters, as measured by the DSCOVR spacecraft, reflected nominal conditions. Total magnetic field strength was between 4-7 nT. No significant periods of southward Bz were observed. Solar wind speeds averaged near 300 km/s. Phi angle was oriented in the positive sector.
.Forecast… Solar wind parameters are likely to remain nominal over 08 May. A weak enhancement from interaction with a negative polarity CH HSS is possible on 09-10 May.
.24 hr Summary… The geomagnetic field was quiet.
.Forecast… The geomagnetic field is expected to be mostly quiet, with isolated unsettled periods possible on 09-10 May.
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