:Product: 1126RSGA.txt
:Issued: 2025 Nov 26 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 330 Issued at 2200Z on 26 Nov 2025

IA.  Analysis of Solar Active Regions and Activity from 25/2100Z to
26/2100Z: Solar activity has been at low levels for the past 24 hours.
There are currently 5 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 (27
Nov, 28 Nov, 29 Nov).

IIA.  Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic
field has been at unsettled to active levels for the past 24 hours.
Solar wind speed reached a peak of 838 km/s at 26/0924Z. Total IMF
reached 8 nT at 25/2121Z. The maximum southward component of Bz reached
-6 nT at 26/0557Z.  Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 10063 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at active to minor storm levels on day one (27 Nov), active levels
on day two (28 Nov) and quiet to unsettled levels on day three (29 Nov).

III.  Event probabilities 27 Nov-29 Nov
Class M    15/15/15
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           26 Nov 120
Predicted   27 Nov-29 Nov 120/125/125
90 Day Mean        26 Nov 148

V.  Geomagnetic A Indices
Observed Afr/Ap 25 Nov  017/032
Estimated Afr/Ap 26 Nov  020/026
Predicted Afr/Ap 27 Nov-29 Nov  021/030-018/025-009/012

VI.  Geomagnetic Activity Probabilities 27 Nov-29 Nov
A.  Middle Latitudes
Active                45/25/25
Minor Storm           25/10/10
Major-severe storm    05/01/01
B.  High Latitudes
Active                10/15/15
Minor Storm           25/25/25
Major-severe storm    70/35/35
