:Product: 0726RSGA.txt :Issued: 2025 Jul 26 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 207 Issued at 2200Z on 26 Jul 2025 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 10 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 (27 Jul, 28 Jul, 29 Jul). IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 629 km/s at 25/2144Z. Total IMF reached 11 nT at 26/1052Z. The maximum southward component of Bz reached -9 nT at 26/1157Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2510 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (27 Jul), quiet to unsettled levels on day two (28 Jul) and quiet levels on day three (29 Jul). III. Event probabilities 27 Jul-29 Jul Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Jul 143 Predicted 27 Jul-29 Jul 145/145/140 90 Day Mean 26 Jul 135 V. Geomagnetic A Indices Observed Afr/Ap 25 Jul 010/008 Estimated Afr/Ap 26 Jul 010/011 Predicted Afr/Ap 27 Jul-29 Jul 014/020-011/012-006/005 VI. Geomagnetic Activity Probabilities 27 Jul-29 Jul A. Middle Latitudes Active 35/35/10 Minor Storm 30/15/01 Major-severe storm 10/01/01 B. High Latitudes Active 10/10/20 Minor Storm 20/25/20 Major-severe storm 65/50/10