:Product: 0224RSGA.txt :Issued: 2016 Feb 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 55 Issued at 2200Z on 24 Feb 2016 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. The largest solar event of the period was a C1 event observed at 24/1229Z from Region 2506 (S07E48). There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (25 Feb, 26 Feb, 27 Feb). IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 374 km/s at 24/0734Z. Total IMF reached 7 nT at 24/0857Z. The maximum southward component of Bz reached -6 nT at 23/2142Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1937 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (25 Feb, 26 Feb, 27 Feb). III. Event probabilities 25 Feb-27 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 24 Feb 088 Predicted 25 Feb-27 Feb 085/085/080 90 Day Mean 24 Feb 107 V. Geomagnetic A Indices Observed Afr/Ap 23 Feb 005/003 Estimated Afr/Ap 24 Feb 006/008 Predicted Afr/Ap 25 Feb-27 Feb 007/008-007/008-007/008 VI. Geomagnetic Activity Probabilities 25 Feb-27 Feb A. Middle Latitudes Active 15/15/15 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/20/20 Minor Storm 25/25/25 Major-severe storm 25/20/20