:Product: 0122RSGA.txt :Issued: 2013 Jan 22 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 22 Issued at 2200Z on 22 Jan 2013 IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be at low levels on days one, two, and three (23 Jan, 24 Jan, 25 Jan). IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 362 km/s at 21/2124Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 288 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels for the next three days (23 Jan, 24 Jan, 25 Jan). III. Event probabilities 23 Jan-25 Jan Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 22 Jan 110 Predicted 23 Jan-25 Jan 110/110/105 90 Day Mean 22 Jan 121 V. Geomagnetic A Indices Observed Afr/Ap 21 Jan 004/004 Estimated Afr/Ap 22 Jan 002/002 Predicted Afr/Ap 23 Jan-25 Jan 004/005-006/005-006/008 VI. Geomagnetic Activity Probabilities 23 Jan-25 Jan A. Middle Latitudes Active 10/10/15 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/25 Major-severe storm 15/15/25