:Product: 0625RSGA.txt :Issued: 2009 Jun 25 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 176 Issued at 2200Z on 25 Jun 2009 IA. Analysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: Solar activity has been very low. No flares occurred during the past 24 hours. Region 1023 (S23W14) has decayed to spotless plage. Consequently the entire solar disk is now void of spots. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field was quiet to unsettled. Solar wind observations indicated the presence of a high speed stream from a coronal hole. Solar wind velocities were slowly declining towards the end of the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next two days (26-27 June). An increase to predominately unsettled levels with a chance for isolated active periods is expected on the third day (28 June) in response to a favorably positioned coronal hole. III. Event Probabilities 26 Jun-28 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 25 Jun 068 Predicted 26 Jun-28 Jun 068/068/068 90 Day Mean 25 Jun 070 V. Geomagnetic A Indices Observed Afr/Ap 24 Jun 016/019 Estimated Afr/Ap 25 Jun 006/008 Predicted Afr/Ap 26 Jun-28 Jun 005/005-005/005-008/010 VI. Geomagnetic Activity Probabilities 26 Jun-28 Jun A. Middle Latitudes Active 05/05/25 Minor storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/30 Minor storm 01/01/15 Major-severe storm 01/01/01