:Product: 0914RSGA.txt :Issued: 2010 Sep 15 0211 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 :::::::::: CORRECTED COPY :::::::::: SDF Number 257 Issued at 2200Z on 14 Sep 2010 IA. Analysis of Solar Active Regions and Activity from 13/2100Z to 14/2100Z: Solar activity has been very low. The disk was quiet and stable. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be very low, with a chance for an isolated C-class event from Region 1106 (S19E30). IIA. Geophysical Activity Summary 13/2100Z to 14/2100Z: The geomagnetic field was quiet to active. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be predominately quiet on day one (15 September). Quiet to unsettled conditions with isolated active periods are expected on day two (16 September) due to the arrival of the CME observed on September 11. Day three is expected to be predominately unsettled with isolated active periods, as a recurrent coronal hole high speed stream becomes geoeffective. III. Event Probabilities 15 Sep-17 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 14 Sep 081 Predicted 15 Sep-17 Sep 082/083/083 90 Day Mean 14 Sep 078 V. Geomagnetic A Indices Observed Afr/Ap 13 Sep 001/002 Estimated Afr/Ap 14 Sep 006/006 Predicted Afr/Ap 15 Sep-17 Sep 005/005-012/012-010/010 VI. Geomagnetic Activity Probabilities 15 Sep-17 Sep A. Middle Latitudes Active 10/15/15 Minor storm 05/10/10 Major-severe storm 01/05/05 B. High Latitudes Active 15/20/20 Minor storm 10/15/15 Major-severe storm 01/10/10