:Product: Weekly Highlights and Forecasts
:Issued: 2020 Dec 14 0119 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
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# Weekly Highlights and Forecasts
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Highlights of Solar and Geomagnetic Activity
07 - 13 December 2020

Solar activity was reached low levels on 07 Dec due to a
long-duration C7/1f flare observed at 07/1632 UTC from Region 2790
(S22, L=252, class/area=Hsx/80 on 10 Dec). The associated halo CME
arrived at Earth just after 10/0000 UTC as an interplanetary shock,
and with the driver directed south of the ecliptic plane. Solar
activity was at very low levels throughout the remainder of the
period with B-class flare activity.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was
normal to moderate throughout the period.

Geomagnetic field reached active levels early on 10 Dec due to the
arrival of the 07 Dec CME. Quiet or quiet to unsettled conditions
were observed throughout the remainder of the period.

Forecast of Solar and Geomagnetic Activity
14 December - 09 January 2021

Solar activity is expected to be very low to low throughout the
outlook period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to reach high levels on 21-25 Dec, with normal to moderate
levels expected to persist throughout the remainder of the outlook
period.

Geomagnetic field activity is expected to reach active levels on
20-22 Dec due to CH HSS influences. Quiet and quiet to unsettled
conditions are expected to prevail throughout the remainder of the
period.