:Product: 0515RSGA.txt :Issued: 2006 May 15 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 135 Issued at 2200Z on 15 May 2006 IA. Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to continue at very low levels. IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet on 16 and 17 May. On 18 May, quiet to active conditions are expected due to a coronal hole high speed stream moving into geoeffective position. III. Event Probabilities 16 May-18 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 15 May 072 Predicted 16 May-18 May 070/070/070 90 Day Mean 15 May 082 V. Geomagnetic A Indices Observed Afr/Ap 14 May 006/008 Estimated Afr/Ap 15 May 005/005 Predicted Afr/Ap 16 May-18 May 005/005-005/008-010/015 VI. Geomagnetic Activity Probabilities 16 May-18 May A. Middle Latitudes Active 15/15/25 Minor storm 05/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/20/30 Minor storm 05/10/15 Major-severe storm 01/01/05