:Product: 0619RSGA.txt :Issued: 2007 Jun 19 2202 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 170 Issued at 2200Z on 19 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was very low. There are no spots on the visible disk. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to range from unsettled to minor storm levels on 20-22 June as a recurrent coronal hole becomes geoeffective. The influence of the coronal hole high speed stream could lead to isolated major storm periods at high latitudes. III. Event Probabilities 20 Jun-22 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Jun 066 Predicted 20 Jun-22 Jun 068/068/068 90 Day Mean 19 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 18 Jun 005/005 Estimated Afr/Ap 19 Jun 007/008 Predicted Afr/Ap 20 Jun-22 Jun 012/015-015/020-010/015 VI. Geomagnetic Activity Probabilities 20 Jun-22 Jun A. Middle Latitudes Active 25/30/25 Minor storm 15/20/15 Major-severe storm 05/10/05 B. High Latitudes Active 30/35/30 Minor storm 20/25/20 Major-severe storm 10/15/10