:Product: 0504RSGA.txt :Issued: 2014 May 04 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 124 Issued at 2200Z on 04 May 2014 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: 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 04/1231Z from Region 2051 (S09W64). There are currently 7 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one and two (05 May, 06 May) and expected to be low with a chance for M-class flares on day three (07 May). IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: 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 392 km/s at 04/1340Z. Total IMF reached 11 nT at 04/0509Z. The maximum southward component of Bz reached -9 nT at 04/0526Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (05 May, 06 May) and quiet to active levels on day three (07 May). III. Event probabilities 05 May-07 May Class M 40/40/35 Class X 10/10/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 04 May 132 Predicted 05 May-07 May 135/135/130 90 Day Mean 04 May 152 V. Geomagnetic A Indices Observed Afr/Ap 03 May 005/006 Estimated Afr/Ap 04 May 014/017 Predicted Afr/Ap 05 May-07 May 008/008-007/008-010/012 VI. Geomagnetic Activity Probabilities 05 May-07 May A. Middle Latitudes Active 15/15/30 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/25/30 Major-severe storm 20/20/40