:Product: 0524RSGA.txt :Issued: 2006 May 24 2204 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 144 Issued at 2200Z on 24 May 2006 IA. Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: Solar Activity was very low. Region 884 (S12W14) produced today's only event, a B1 x-ray event at 1443Z. Region 886 (N07E31) showed slow growth during the past 24 hours but was quiet and stable. IB. Solar Activity Forecast: Solar activity is expected to be predominantly very low, but there is a slight chance for an isolated C-class event. IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly unsettled for 25 May due to recurrence. Quiet conditions are expected for 26-27 May. III. Event Probabilities 25 May-27 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 24 May 084 Predicted 25 May-27 May 085/085/085 90 Day Mean 24 May 081 V. Geomagnetic A Indices Observed Afr/Ap 23 May 004/007 Estimated Afr/Ap 24 May 005/006 Predicted Afr/Ap 25 May-27 May 008/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 25 May-27 May A. Middle Latitudes Active 20/10/10 Minor storm 10/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/15/15 Minor storm 15/05/05 Major-severe storm 05/01/01