:Product: 0509RSGA.txt :Issued: 2014 May 09 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 129 Issued at 2200Z on 09 May 2014 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C7 event observed at 09/1501Z from Region 2058 (S14E57). There are currently 8 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 (10 May, 11 May, 12 May). IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 405 km/s at 09/1647Z. Total IMF reached 9 nT at 08/2150Z. The maximum southward component of Bz reached -7 nT at 08/2204Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (10 May) and quiet to unsettled levels on days two and three (11 May, 12 May). III. Event probabilities 10 May-12 May Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 May 152 Predicted 10 May-12 May 150/155/160 90 Day Mean 09 May 150 V. Geomagnetic A Indices Observed Afr/Ap 08 May 013/020 Estimated Afr/Ap 09 May 008/010 Predicted Afr/Ap 10 May-12 May 011/012-010/012-008/010 VI. Geomagnetic Activity Probabilities 10 May-12 May A. Middle Latitudes Active 20/15/10 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor Storm 30/25/20 Major-severe storm 30/20/10