:Product: 0608RSGA.txt :Issued: 2014 Jun 08 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 159 Issued at 2200Z on 08 Jun 2014 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1 event observed at 08/1002Z. There are currently 6 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, two, and three (09 Jun, 10 Jun, 11 Jun). IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at unsettled to major storm levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 641 km/s at 08/1753Z. Total IMF reached 29 nT at 08/0654Z. The maximum southward component of Bz reached -16 nT at 08/0426Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (09 Jun) and quiet levels on days two and three (10 Jun, 11 Jun). III. Event probabilities 09 Jun-11 Jun Class M 35/35/35 Class X 15/15/15 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Jun 149 Predicted 09 Jun-11 Jun 155/160/165 90 Day Mean 08 Jun 138 V. Geomagnetic A Indices Observed Afr/Ap 07 Jun 014/013 Estimated Afr/Ap 08 Jun 026/040 Predicted Afr/Ap 09 Jun-11 Jun 012/015-006/005-006/005 VI. Geomagnetic Activity Probabilities 09 Jun-11 Jun A. Middle Latitudes Active 35/05/05 Minor Storm 15/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/15/15 Minor Storm 25/15/15 Major-severe storm 50/05/05