[Propagation+Space Weather] Today's Space Weather Forecast Discussion on 2021 Mar 08 1230 UTC

[nw7us@sunspotwatch.com]

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Here is the current forecast discussion on space weather and geophysical activity, issued 2021 Mar 08 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2806 (S31W70, Cro/beta) remained stable and quiet. No Earth-directed CMEs were observed in available coronagraph imagery.

Forecast: Solar activity is expected to remain at very low levels over 08-10 Mar.

Energetic Particle

24 hr Summary: The greater than 2 MeV electron flux at geosynchronous orbit reached high levels due to CH HSS influence. The greater than 10 MeV proton flux remained at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels through 08-09 Mar. A return to peak levels of moderate levels is expected for 10 Mar. 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 waning influence of a positive polarity CH HSS. Total magnetic field strength was between 5-7 nT while Bz was mostly positive with a brief deflection to -6 nT at 07/1649 UTC. Solar wind speeds were in gradual decline, starting the period between 500-550 km/s and ending the reporting between 450-500 km/s. Phi angle was predominantly oriented in the positive solar sector.

Forecast: The solar wind speed is expected gradually trend towards nominal levels over 08-09 Mar.

Geospace

24 hr Summary: The geomagnetic field was quiet to active under waning CH HSS influence.

Forecast: The geomagnetic field is expected to be quiet to unsettled on 08-09 Mar in response to diminishing CH HSS effects. Quiet conditions are expected on 10 Mar as nominal solar wind condition prevail.

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