:Product: 0408RSGA.txt :Issued: 2009 Apr 08 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 098 Issued at 2200Z on 08 Apr 2009 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was very low. No flares were observed the past 24 hours. The solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was at quiet to unsettled conditions. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled conditions for 09 - 10 April due to a recurrent coronal hole high speed stream. Isolated active levels at mid latitudes, and isolated minor storm conditions at high latitudes are possible on 09 April associated with the increase in activity. Predominantly quiet levels are expected on 11 April. III. Event Probabilities 09 Apr-11 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 08 Apr 070 Predicted 09 Apr-11 Apr 070/070/070 90 Day Mean 08 Apr 070 V. Geomagnetic A Indices Observed Afr/Ap 07 Apr 002/002 Estimated Afr/Ap 08 Apr 005/008 Predicted Afr/Ap 09 Apr-11 Apr 010/015-007/008-005/005 VI. Geomagnetic Activity Probabilities 09 Apr-11 Apr A. Middle Latitudes Active 35/30/05 Minor storm 10/05/01 Major-severe storm 05/01/01 B. High Latitudes Active 35/35/10 Minor storm 15/10/01 Major-severe storm 05/05/01