:Product: 0514RSGA.txt :Issued: 2014 May 14 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 134 Issued at 2200Z on 14 May 2014 IA. Analysis of Solar Active Regions and Activity from 13/2100Z to 14/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8 event observed at 14/1504Z from Region 2056 (N05W37). 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 (15 May, 16 May, 17 May). IIA. Geophysical Activity Summary 13/2100Z to 14/2100Z: 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 381 km/s at 14/1144Z. Total IMF reached 6 nT at 14/1848Z. The maximum southward component of Bz reached -4 nT at 14/1117Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 284 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (15 May), quiet to unsettled levels on day two (16 May) and quiet levels on day three (17 May). III. Event probabilities 15 May-17 May Class M 30/30/30 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 14 May 163 Predicted 15 May-17 May 165/165/160 90 Day Mean 14 May 150 V. Geomagnetic A Indices Observed Afr/Ap 13 May 007/005 Estimated Afr/Ap 14 May 004/006 Predicted Afr/Ap 15 May-17 May 007/010-008/008-006/005 VI. Geomagnetic Activity Probabilities 15 May-17 May A. Middle Latitudes Active 30/20/05 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/20/15 Minor Storm 30/30/15 Major-severe storm 35/25/05