:Product: 0729RSGA.txt
:Issued: 2026 Jul 29 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 210 Issued at 2200Z on 29 Jul 2026

IA.  Analysis of Solar Active Regions and Activity from 28/2100Z to
29/2100Z: Solar activity has been at low levels for the past 24 hours.
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 on days one, two, and three (30 Jul, 31 Jul,
01 Aug).

IIA.  Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 401 km/s at 29/0517Z. Total IMF reached 7
nT at 29/0155Z. The maximum southward component of Bz reached -5 nT at
28/2339Z.  Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 723 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to active levels on days one, two, and three (30 Jul, 31
Jul, 01 Aug).

III.  Event probabilities 30 Jul-01 Aug
Class M    25/25/25
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           29 Jul 143
Predicted   30 Jul-01 Aug 144/140/135
90 Day Mean        29 Jul 133

V.  Geomagnetic A Indices
Observed Afr/Ap 28 Jul  010/008
Estimated Afr/Ap 29 Jul  006/006
Predicted Afr/Ap 30 Jul-01 Aug  010/012-014/015-010/014

VI.  Geomagnetic Activity Probabilities 30 Jul-01 Aug
A.  Middle Latitudes
Active                35/35/25
Minor Storm           10/15/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/10/15
Minor Storm           30/25/20
Major-severe storm    45/50/20