:Product: 1210RSGA.txt
:Issued: 2022 Dec 10 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 344 Issued at 2200Z on 10 Dec 2022

IA.  Analysis of Solar Active Regions and Activity from 09/2100Z to
10/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
10/1044Z from Region 3163 (S20E64). There are currently 7 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (11
Dec, 12 Dec, 13 Dec).

IIA.  Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 558 km/s at 09/2144Z. Total IMF reached 8
nT at 10/1428Z. The maximum southward component of Bz reached -7 nT at
10/1647Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 163 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on days one, two, and three (11 Dec, 12 Dec, 13
Dec).

III.  Event probabilities 11 Dec-13 Dec
Class M    20/20/20
Class X    01/01/01
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           10 Dec 142
Predicted   11 Dec-13 Dec 140/135/130
90 Day Mean        10 Dec 132

V.  Geomagnetic A Indices
Observed Afr/Ap 09 Dec  009/009
Estimated Afr/Ap 10 Dec  008/008
Predicted Afr/Ap 11 Dec-13 Dec  006/005-006/005-006/005

VI.  Geomagnetic Activity Probabilities 11 Dec-13 Dec
A.  Middle Latitudes
Active                10/10/10
Minor Storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           20/20/20
Major-severe storm    20/20/20