:Product: 0609RSGA.txt
:Issued: 2025 Jun 09 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 160 Issued at 2200Z on 09 Jun 2025

IA.  Analysis of Solar Active Regions and Activity from 08/2100Z to
09/2100Z: 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 (10
Jun, 11 Jun, 12 Jun).

IIA.  Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 547 km/s at 09/1112Z. Total IMF reached 12
nT at 08/2108Z. The maximum southward component of Bz reached -9 nT at
08/2108Z.  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 to active levels on days one and two (10 Jun, 11 Jun) and
quiet levels on day three (12 Jun).

III.  Event probabilities 10 Jun-12 Jun
Class M    20/20/20
Class X    05/05/05
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           09 Jun 120
Predicted   10 Jun-12 Jun 115/115/120
90 Day Mean        09 Jun 152

V.  Geomagnetic A Indices
Observed Afr/Ap 08 Jun  013/ NA
Estimated Afr/Ap 09 Jun  017/021
Predicted Afr/Ap 10 Jun-12 Jun  010/012-011/012-007/008

VI.  Geomagnetic Activity Probabilities 10 Jun-12 Jun
A.  Middle Latitudes
Active                30/30/15
Minor Storm           10/10/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           30/30/20
Major-severe storm    40/40/20