:Product: 0606RSGA.txt
:Issued: 2023 Jun 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 157 Issued at 2200Z on 06 Jun 2023

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 C7 event observed at
06/1900Z from Region 3327 (S14E40). There are currently 8 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 Jun, 08 Jun, 09 Jun).

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 424 km/s at 06/0953Z. Total IMF reached 10
nT at 05/2239Z. The maximum southward component of Bz reached -7 nT at
06/0009Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 183 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (07 Jun), quiet to active levels on day
two (08 Jun) and quiet to unsettled levels on day three (09 Jun).
Protons have a slight chance of crossing threshold on days one, two, and
three (07 Jun, 08 Jun, 09 Jun).

III.  Event probabilities 07 Jun-09 Jun
Class M    30/30/30
Class X    10/10/10
Proton     10/10/10
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           06 Jun 172
Predicted   07 Jun-09 Jun 170/160/160
90 Day Mean        06 Jun 152

V.  Geomagnetic A Indices
Observed Afr/Ap 05 Jun  006/005
Estimated Afr/Ap 06 Jun  006/007
Predicted Afr/Ap 07 Jun-09 Jun  006/005-010/012-008/008

VI.  Geomagnetic Activity Probabilities 07 Jun-09 Jun
A.  Middle Latitudes
Active                05/20/15
Minor Storm           01/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           15/20/20
Major-severe storm    05/20/10