:Product: Report of Solar-Geophysical Activity :Issued: 2010 Mar 10 2201 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 069 Issued at 2200Z on 10 Mar 2010 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was very low. Two B-class flares occurred during the past 24 hours. The first was estimated to be a B3 at 0713Z from spotless plage (in the location of old Region 1046. The x-ray flux maximum was estimated because it occurred during GOES-14 eclipse). This event was associated with a CME from the East limb. The second event was a B1.7 at 1534 UTC that originated from newly emerged Region 1054 (N12E56), which is currently a small BXO beta sunspot group. There also appeared to be emerging flux and possible spot formation near S23W00 but observations are too preliminary to warrant a Region number assignment. IB. Solar Activity Forecast: Solar activity is expected to be very low for the next three days (11-13 March). However, there is a slight chance for an isolated C-class event from the newly emerging regions if they continue to grow. IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was quiet to unsettled during the past 24 hours. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (11-13 March). III. Event Probabilities 11 Mar-13 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 10 Mar 080 Predicted 11 Mar-13 Mar 082/082/082 90 Day Mean 10 Mar 082 V. Geomagnetic A Indices Observed Afr/Ap 09 Mar 002/002 Estimated Afr/Ap 10 Mar 007/007 Predicted Afr/Ap 11 Mar-13 Mar 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 11 Mar-13 Mar A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/10 Minor storm 01/01/05 Major-severe storm 01/01/01