:Product: 0322RSGA.txt :Issued: 2014 Mar 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 Solar Geophysical Activity Report and Forecast SDF Number 81 Issued at 2200Z on 22 Mar 2014 IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 22/0702Z from Region 2011 (S07W77). There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (23 Mar, 24 Mar, 25 Mar). IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 550 km/s at 22/1736Z. Total IMF reached 10 nT at 22/1521Z. The maximum southward component of Bz reached -4 nT at 22/1222Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and three (23 Mar, 25 Mar) and quiet to active levels on day two (24 Mar). III. Event probabilities 23 Mar-25 Mar Class M 45/45/45 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 22 Mar 155 Predicted 23 Mar-25 Mar 160/155/155 90 Day Mean 22 Mar 158 V. Geomagnetic A Indices Observed Afr/Ap 21 Mar 010/010 Estimated Afr/Ap 22 Mar 006/007 Predicted Afr/Ap 23 Mar-25 Mar 007/008-009/010-008/008 VI. Geomagnetic Activity Probabilities 23 Mar-25 Mar A. Middle Latitudes Active 10/30/10 Minor Storm 01/10/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/30/20 Major-severe storm 20/40/20