:Product: 0618RSGA.txt :Issued: 2007 Jun 18 2201 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 169 Issued at 2200Z on 18 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 17/2100Z to 18/2100Z: Solar activity was very low. The visible disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 17/2100Z to 18/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled on 19 June. Expect unsettled to active conditions, with minor storm periods possible, on 20-21 June as a recurrent coronal hole moves into a geoeffective position, III. Event Probabilities 19 Jun-21 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 18 Jun 067 Predicted 19 Jun-21 Jun 068/068/068 90 Day Mean 18 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 17 Jun 003/006 Estimated Afr/Ap 18 Jun 003/005 Predicted Afr/Ap 19 Jun-21 Jun 008/010-012/015-015/020 VI. Geomagnetic Activity Probabilities 19 Jun-21 Jun A. Middle Latitudes Active 20/25/30 Minor storm 10/15/20 Major-severe storm 01/05/10 B. High Latitudes Active 25/30/35 Minor storm 15/20/25 Major-severe storm 05/10/15