:Product: 0426RSGA.txt :Issued: 2009 Apr 26 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 Report of Solar and Geophysical Activity SDF Number 116 Issued at 2200Z on 26 Apr 2009 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity was very low. No flares were detected. The visible disk remained spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field was at quiet levels. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels through the forecast period (27 - 29 April). III. Event Probabilities 27 Apr-29 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Apr 069 Predicted 27 Apr-29 Apr 070/070/070 90 Day Mean 26 Apr 070 V. Geomagnetic A Indices Observed Afr/Ap 25 Apr 002/004 Estimated Afr/Ap 26 Apr 002/005 Predicted Afr/Ap 27 Apr-29 Apr 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 27 Apr-29 Apr A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01