:Product: 0611RSGA.txt :Issued: 2014 Jun 11 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 162 Issued at 2200Z on 11 Jun 2014 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a X1 event observed at 11/0906Z from Region 2087 (S18E56). There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a chance for X-class flares on days one, two, and three (12 Jun, 13 Jun, 14 Jun). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 643 km/s at 11/1108Z. Total IMF reached 8 nT at 10/2157Z. The maximum southward component of Bz reached -5 nT at 11/0050Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (12 Jun) and quiet to active levels on days two and three (13 Jun, 14 Jun). Protons have a chance of crossing threshold on days one, two, and three (12 Jun, 13 Jun, 14 Jun). III. Event probabilities 12 Jun-14 Jun Class M 60/60/60 Class X 30/30/30 Proton 30/30/30 PCAF yellow IV. Penticton 10.7 cm Flux Observed 11 Jun 168 Predicted 12 Jun-14 Jun 175/170/165 90 Day Mean 11 Jun 138 V. Geomagnetic A Indices Observed Afr/Ap 10 Jun 007/008 Estimated Afr/Ap 11 Jun 008/008 Predicted Afr/Ap 12 Jun-14 Jun 007/008-012/018-016/020 VI. Geomagnetic Activity Probabilities 12 Jun-14 Jun A. Middle Latitudes Active 15/35/35 Minor Storm 05/20/25 Major-severe storm 01/01/05 B. High Latitudes Active 15/10/15 Minor Storm 25/30/20 Major-severe storm 20/50/25