:Product: 0319RSGA.txt :Issued: 2014 Mar 19 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 78 Issued at 2200Z on 19 Mar 2014 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C9 event observed at 19/0734Z from Region 2010 (S15E39). 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 (20 Mar, 21 Mar, 22 Mar). IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: 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 365 km/s at 19/1819Z. Total IMF reached 7 nT at 18/2134Z. The maximum southward component of Bz reached -5 nT at 18/2234Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (20 Mar, 21 Mar, 22 Mar). III. Event probabilities 20 Mar-22 Mar Class M 40/30/30 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Mar 149 Predicted 20 Mar-22 Mar 150/145/145 90 Day Mean 19 Mar 157 V. Geomagnetic A Indices Observed Afr/Ap 18 Mar 010/005 Estimated Afr/Ap 19 Mar 004/005 Predicted Afr/Ap 20 Mar-22 Mar 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 20 Mar-22 Mar A. Middle Latitudes Active 05/05/05 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 05/05/05