:Product: 0204RSGA.txt :Issued: 2015 Feb 04 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 35 Issued at 2200Z on 04 Feb 2015 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 04/0215Z from Region 2277 (N08W18). There are currently 4 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (05 Feb, 06 Feb, 07 Feb). IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 582 km/s at 03/2242Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 7431 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (05 Feb, 06 Feb, 07 Feb). III. Event probabilities 05 Feb-07 Feb Class M 20/20/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Feb 145 Predicted 05 Feb-07 Feb 145/145/150 90 Day Mean 04 Feb 153 V. Geomagnetic A Indices Observed Afr/Ap 03 Feb 012/015 Estimated Afr/Ap 04 Feb 008/010 Predicted Afr/Ap 05 Feb-07 Feb 007/010-007/010-007/010 VI. Geomagnetic Activity Probabilities 05 Feb-07 Feb A. Middle Latitudes Active 15/15/15 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor Storm 30/30/30 Major-severe storm 25/25/25