:Product: Report of Solar-Geophysical Activity
:Issued: 2025 Mar 06 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 65 Issued at 2200Z on 06 Mar 2025

IA.  Analysis of Solar Active Regions and Activity from 05/2100Z to
06/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
06/0415Z from Region 4016 (S26E21). There are currently 9 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (07 Mar, 08 Mar, 09 Mar).

IIA.  Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 934 km/s at 06/1759Z. Total IMF reached 8
nT at 06/1730Z. The maximum southward component of Bz reached -6 nT at
06/1748Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 333 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (07 Mar), quiet to active levels on day
two (08 Mar) and quiet to minor storm levels on day three (09 Mar).

III.  Event probabilities 07 Mar-09 Mar
Class M    45/45/45
Class X    10/10/10
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           06 Mar 150
Predicted   07 Mar-09 Mar 160/165/165
90 Day Mean        06 Mar 189

V.  Geomagnetic A Indices
Observed Afr/Ap 05 Mar  004/010
Estimated Afr/Ap 06 Mar  007/007
Predicted Afr/Ap 07 Mar-09 Mar  005/012-008/020-015/025

VI.  Geomagnetic Activity Probabilities 07 Mar-09 Mar
A.  Middle Latitudes
Active                10/30/40
Minor Storm           01/05/25
Major-severe storm    01/01/05
B.  High Latitudes
Active                15/15/10
Minor Storm           20/30/25
Major-severe storm    15/35/60