:Product: 0406RSGA.txt :Issued: 2014 Apr 06 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 96 Issued at 2200Z on 06 Apr 2014 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C3 event observed at 06/2101Z from Region 2031 (N03W25). There are currently 7 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 and two (07 Apr, 08 Apr) and expected to be low with a slight chance for an M-class flare on day three (09 Apr). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: 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 488 km/s at 05/2219Z. Total IMF reached 17 nT at 06/0212Z. The maximum southward component of Bz reached -4 nT at 06/1121Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (07 Apr, 08 Apr) and quiet to unsettled levels on day three (09 Apr). III. Event probabilities 07 Apr-09 Apr Class M 30/30/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Apr 141 Predicted 07 Apr-09 Apr 140/140/140 90 Day Mean 06 Apr 157 V. Geomagnetic A Indices Observed Afr/Ap 05 Apr 011/012 Estimated Afr/Ap 06 Apr 004/005 Predicted Afr/Ap 07 Apr-09 Apr 006/005-006/005-006/008 VI. Geomagnetic Activity Probabilities 07 Apr-09 Apr A. Middle Latitudes Active 05/05/15 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/20 Minor Storm 15/15/25 Major-severe storm 05/05/20