:Product: 0424RSGA.txt :Issued: 2025 Apr 24 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 114 Issued at 2200Z on 24 Apr 2025 IA. Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: 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 (25 Apr, 26 Apr, 27 Apr). IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 630 km/s at 24/0618Z. Total IMF reached 15 nT at 24/0618Z. The maximum southward component of Bz reached -10 nT at 24/1148Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 734 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (25 Apr), quiet levels on day two (26 Apr) and quiet to unsettled levels on day three (27 Apr). III. Event probabilities 25 Apr-27 Apr Class M 40/40/40 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 24 Apr 170 Predicted 25 Apr-27 Apr 170/170/170 90 Day Mean 24 Apr 172 V. Geomagnetic A Indices Observed Afr/Ap 23 Apr 009/ NA Estimated Afr/Ap 24 Apr 010/014 Predicted Afr/Ap 25 Apr-27 Apr 010/012-007/008-013/015 VI. Geomagnetic Activity Probabilities 25 Apr-27 Apr A. Middle Latitudes Active 30/15/35 Minor Storm 15/05/15 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/25/30 Major-severe storm 45/25/50