:Product: 0224RSGA.txt
:Issued: 2023 Feb 24 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 55 Issued at 2200Z on 24 Feb 2023

IA.  Analysis of Solar Active Regions and Activity from 23/2100Z to
24/2100Z: Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M3 event observed at
24/2030Z from Region 3229 (N25W32). There are currently 6 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(25 Feb, 26 Feb, 27 Feb).

IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 617 km/s at 23/2334Z. Total IMF reached 9
nT at 23/2215Z. The maximum southward component of Bz reached -4 nT at
24/0530Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 437 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (25 Feb, 26 Feb)
and quiet to active levels on day three (27 Feb).

III.  Event probabilities 25 Feb-27 Feb
Class M    55/55/55
Class X    10/10/10
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           24 Feb 164
Predicted   25 Feb-27 Feb 165/165/165
90 Day Mean        24 Feb 166

V.  Geomagnetic A Indices
Observed Afr/Ap 23 Feb  016/018
Estimated Afr/Ap 24 Feb  007/008
Predicted Afr/Ap 25 Feb-27 Feb  008/008-007/008-009/012

VI.  Geomagnetic Activity Probabilities 25 Feb-27 Feb
A.  Middle Latitudes
Active                20/20/30
Minor Storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           25/25/30
Major-severe storm    25/25/35