Forecast Discussion

Product: Forecast Discussion Issued: 2020 Dec 05 0030 UTC Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity
.24 hr Summary… Solar activity was very low. B-class flare activity was observed from Region 2786 (S17W71, Hkx/alpha). Slight decay was observed in Regions 2786 and 2790 (S23E24, Cao/beta). No Earth-directed CMEs were observed.
.Forecast… Solar activity is expected to be very low with a chance for further C-class activity on 05 Dec followed by a slight chance for C-flares on 06-07 Dec.
Energetic Particle
.24 hr Summary… The greater than 2 MeV electron flux was at normal to moderate levels. The greater than 10 MeV proton flux was slightly enhanced from the southeast limb event on 29 Nov but remained below the 10 pfu threshold.
.Forecast… The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 05-07 Dec. The greater than 10 MeV proton flux is expected to return to background levels.
Solar Wind
.24 hr Summary… Solar wind parameters were at nominal levels with solar wind speeds estimated in the 320-420 km/s range. Solar wind speed and temperature data has been suspect due to low densities. Total field ranged from 4-7 nT while the Bz component was between +5/-3 nT. Phi angle was oriented in a negative (towards) solar sector.
.Forecast… Solar wind parameters are expected to be at nominal levels on 05-07 Dec.
.24 hr Summary… The geomagnetic field was quiet.
.Forecast… The geomagnetic field is expected to be mostly quiet on 05-07 Dec.
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