: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