:Product: 0209RSGA.txt :Issued: 2014 Feb 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 40 Issued at 2200Z on 09 Feb 2014 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 09/1617Z. 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 on day one (10 Feb) and likely to be low with a chance for M-class flares on days two and three (11 Feb, 12 Feb). IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 496 km/s at 09/2006Z. Total IMF reached 11 nT at 09/1039Z. The maximum southward component of Bz reached -8 nT at 09/1236Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 721 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (10 Feb, 11 Feb) and quiet levels on day three (12 Feb). Protons greater than 10 Mev have a slight chance of crossing threshold on day one (10 Feb). III. Event probabilities 10 Feb-12 Feb Class M 40/30/30 Class X 05/05/05 Proton 10/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Feb 169 Predicted 10 Feb-12 Feb 155/150/145 90 Day Mean 09 Feb 155 V. Geomagnetic A Indices Observed Afr/Ap 08 Feb 019/019 Estimated Afr/Ap 09 Feb 014/017 Predicted Afr/Ap 10 Feb-12 Feb 010/012-007/008-006/005 VI. Geomagnetic Activity Probabilities 10 Feb-12 Feb A. Middle Latitudes Active 20/15/05 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/25/15 Major-severe storm 25/25/05