:Product: 0628RSGA.txt :Issued: 2006 Jun 28 2203 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 179 Issued at 2200Z on 28 Jun 2006 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity was very low. Newly numbered region 898 (S06E66) produced a B5 flare at 28/1932 UTC. Region 897 (N05E29) has grown to approximately 110 millionths. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field was at quiet to minor storm levels. Over the past 24 hours, solar wind speed increased to approximately 575 km/s due to the coronal hole high speed stream while Bz varied between +/- 10 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to active on 29 June, with mostly quiet conditions expected on 30 June to 01 July. III. Event Probabilities 29 Jun-01 Jul Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 28 Jun 084 Predicted 29 Jun-01 Jul 085/085/085 90 Day Mean 28 Jun 082 V. Geomagnetic A Indices Observed Afr/Ap 27 Jun 007/006 Estimated Afr/Ap 28 Jun 014/020 Predicted Afr/Ap 29 Jun-01 Jul 010/015-005/010-005/008 VI. Geomagnetic Activity Probabilities 29 Jun-01 Jul A. Middle Latitudes Active 20/10/10 Minor storm 10/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/20 Minor storm 15/10/10 Major-severe storm 05/01/01