:Product: 0607RSGA.txt
:Issued: 2025 Jun 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 158 Issued at 2200Z on 07 Jun 2025

IA.  Analysis of Solar Active Regions and Activity from 06/2100Z to
07/2100Z: Solar activity has been at low levels for the past 24 hours.
There are currently 6 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 Jun, 09 Jun,
10 Jun).

IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 463 km/s at 07/1717Z. Total IMF
reached 15 nT at 07/2057Z. The maximum southward component of Bz reached
-11 nT at 07/1855Z.  Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 2808 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to minor storm levels on days one and two (08 Jun, 09
Jun) and quiet to active levels on day three (10 Jun).

III.  Event probabilities 08 Jun-10 Jun
Class M    30/35/35
Class X    05/05/05
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           07 Jun 121
Predicted   08 Jun-10 Jun 120/125/125
90 Day Mean        07 Jun 152

V.  Geomagnetic A Indices
Observed Afr/Ap 06 Jun  008/ 008
Estimated Afr/Ap 07 Jun  016/020
Predicted Afr/Ap 08 Jun-10 Jun  015/020-018/022-010/012

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