:Product: 0630RSGA.txt
:Issued: 2025 Jun 30 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 181 Issued at 2200Z on 30 Jun 2025

IA.  Analysis of Solar Active Regions and Activity from 29/2100Z to
30/2100Z: Solar activity has been at low levels for the past 24 hours.
There are currently 11 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 (01 Jul, 02 Jul,
03 Jul).

IIA.  Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 1057 km/s at 30/0753Z. Total IMF reached 6
nT at 30/1602Z. The maximum southward component of Bz reached -6 nT at
30/1621Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 8726 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to active levels on day one (01 Jul), unsettled to minor
storm levels on day two (02 Jul) and quiet to minor storm levels on day
three (03 Jul).

III.  Event probabilities 01 Jul-03 Jul
Class M    25/25/25
Class X    05/05/05
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           30 Jun 128
Predicted   01 Jul-03 Jul 126/125/125
90 Day Mean        30 Jun 143

V.  Geomagnetic A Indices
Observed Afr/Ap 29 Jun  009/ 011
Estimated Afr/Ap 30 Jun  008/010
Predicted Afr/Ap 01 Jul-03 Jul  010/012-025/032-015/020

VI.  Geomagnetic Activity Probabilities 01 Jul-03 Jul
A.  Middle Latitudes
Active                25/35/40
Minor Storm           05/30/25
Major-severe storm    01/15/05
B.  High Latitudes
Active                15/05/10
Minor Storm           25/20/20
Major-severe storm    30/70/65
