:Product: 0511RSGA.txt :Issued: 2016 May 11 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 132 Issued at 2200Z on 11 May 2016 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 4 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 (12 May, 13 May, 14 May). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 615 km/s at 10/2240Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 48559 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (12 May, 13 May, 14 May). III. Event probabilities 12 May-14 May Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 11 May 094 Predicted 12 May-14 May 097/100/100 90 Day Mean 11 May 093 V. Geomagnetic A Indices Observed Afr/Ap 10 May 015/017 Estimated Afr/Ap 11 May 006/006 Predicted Afr/Ap 12 May-14 May 005/008-005/005-004/005 VI. Geomagnetic Activity Probabilities 12 May-14 May A. Middle Latitudes Active 15/10/05 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/10/15 Major-severe storm 25/10/10