| Report of Solar-Geophysical Activity Issued: 2007 Apr 12 2200 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 102 Issued at 2200Z on 12 Apr 2007 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was very low. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet during the forecast period. III. Event Probabilities 13 Apr-15 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 12 Apr 068 Predicted 13 Apr-15 Apr 070/070/070 90 Day Mean 12 Apr 076 V. Geomagnetic A Indices Observed Afr/Ap 11 Apr 003/004 Estimated Afr/Ap 12 Apr 008/010 Predicted Afr/Ap 13 Apr-15 Apr 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 13 Apr-15 Apr A. Middle Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 For current space weather conditions please refer to: http://www.sec.noaa.gov/alerts/NOAA Space Weather Scale descriptions can be found at www.sec.noaa.gov/NOAAscales |