:Product: 1121RSGA.txt
:Issued: 2025 Nov 21 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 325 Issued at 2200Z on 21 Nov 2025

IA.  Analysis of Solar Active Regions and Activity from 20/2100Z to
21/2100Z: Solar activity has been at low levels for the past 24 hours.
There are currently 6 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 (22
Nov, 23 Nov, 24 Nov).

IIA.  Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 489 km/s at 21/0407Z. Total IMF reached 14
nT at 20/2127Z. The maximum southward component of Bz reached -9 nT at
20/2248Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 547 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (22 Nov) and quiet levels
on days two and three (23 Nov, 24 Nov).

III.  Event probabilities 22 Nov-24 Nov
Class M    15/15/15
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           21 Nov 121
Predicted   22 Nov-24 Nov 120/120/125
90 Day Mean        21 Nov 153

V.  Geomagnetic A Indices
Observed Afr/Ap 20 Nov  006/007
Estimated Afr/Ap 21 Nov  010/010
Predicted Afr/Ap 22 Nov-24 Nov  008/008-006/005-006/005

VI.  Geomagnetic Activity Probabilities 22 Nov-24 Nov
A.  Middle Latitudes
Active                20/15/15
Minor Storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           25/20/20
Major-severe storm    25/20/20
