:Product: 0307RSGA.txt
:Issued: 2025 Mar 07 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 66 Issued at 2200Z on 07 Mar 2025

IA.  Analysis of Solar Active Regions and Activity from 06/2100Z to
07/2100Z: Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
07/2100Z from Region 4016 (S26E09). There are currently 7 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (08 Mar, 09 Mar,
10 Mar).

IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 849 km/s at 07/0536Z. Total IMF reached 9
nT at 07/0759Z. The maximum southward component of Bz reached -7 nT at
07/0613Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1027 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to active levels on day one (08 Mar), quiet to minor
storm levels on day two (09 Mar) and unsettled to minor storm levels on
day three (10 Mar).

III.  Event probabilities 08 Mar-10 Mar
Class M    40/40/40
Class X    05/05/05
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           07 Mar 147
Predicted   08 Mar-10 Mar 150/150/155
90 Day Mean        07 Mar 188

V.  Geomagnetic A Indices
Observed Afr/Ap 06 Mar  006/006
Estimated Afr/Ap 07 Mar  008/008
Predicted Afr/Ap 08 Mar-10 Mar  008/012-015/020-019/025

VI.  Geomagnetic Activity Probabilities 08 Mar-10 Mar
A.  Middle Latitudes
Active                30/40/40
Minor Storm           05/25/30
Major-severe storm    01/05/05
B.  High Latitudes
Active                15/10/10
Minor Storm           30/25/25
Major-severe storm    35/60/65
