Issued: 2020 Apr 04 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. Region 2759 (N27E10, Hrx/alpha) remained
stable and inactive. No Earth-directed CMEs were observed in available
Solar Activity Forecast
Solar activity is expected to remain at very low levels on 04-06 Apr.
Energetic Particle 24 hr summary
The greater than 2 MeV electron flux reached high levels with a peak
flux of 1,140 pfu at 03/1650 UTC. The greater than 10 MeV proton flux
maintained background levels.
Energetic Particle Forecast
The greater than 2 MeV electron flux is expected to reach high levels on
04 Apr and moderate levels on Apr 05-06. The greater than 10 MeV proton
flux is expected to continue at background levels.
Solar Wind 24 hr summary
Solar wind parameters, as measured by the DSCOVR spacecraft, reflected
mostly nominal conditions. Total magnetic field strength was at 5-6 nT
through most of the day. The Bz component briefly reached as far south
as -5 nT. Solar wind speeds fluctuated between ~380-450 km/s. Phi angle
was primarily oriented in the negative sector.
Solar Wind Forecast
The solar wind field is expected to be near nominal levels on 04 and 06
Apr. A weak enhancement from a positive polarity CH HSS is likely on 05
Geospace 24 hr summary
The geomagnetic field was at quiet to unsettled levels until 03/2359
UTC, when an isolated active period was observed.
Isolated active conditions are possible early on 04 Apr due to waning CH
HSS influence. Quiet to unsettled conditions are expected on 05 Apr with
generally quiet conditions expected on 06 Apr.