:Product: 1022RSGA.txt :Issued: 2010 Oct 22 2200 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 SDF Number 295 Issued at 2200Z on 22 Oct 2010 IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low. Regions 1113 (N16W40), 1115 (S30W22), and 1117 (N23E36) were stable and quiet. A CME was observed off the Northwest quadrant on LASCO C3 Coronagraph beginning around 22/0100Z. This event is likely associated with a disappearing filament at N19W07 at 21/1506Z. IB. Solar Activity Forecast: Solar activity is forecast to be very low with a slight chance for a C-class flare during the next 3 days (23-25 October). IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field was mostly quiet with isolated periods of unsettled conditions between 22/0600-0900Z and 22/1800-2100Z. IIB. Geophysical Activity Forecast: The geomagnetic field is forecast to be mostly unsettled to active on day 1 (23 October) due to coronal hole effects in progress. Unsettled to active conditions with a chance for minor storming are expected on days 2 and 3 (24-25 October) from the affects of a second favorably positioned coronal hole. III. Event Probabilities 23 Oct-25 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 22 Oct 082 Predicted 23 Oct-25 Oct 082/082/082 90 Day Mean 22 Oct 081 V. Geomagnetic A Indices Observed Afr/Ap 21 Oct 001/003 Estimated Afr/Ap 22 Oct 007/008 Predicted Afr/Ap 23 Oct-25 Oct 010/012-015/018-012/012 VI. Geomagnetic Activity Probabilities 23 Oct-25 Oct A. Middle Latitudes Active 50/60/50 Minor storm 15/25/15 Major-severe storm 01/05/01 B. High Latitudes Active 50/60/50 Minor storm 20/30/20 Major-severe storm 05/10/05