:Product: 0129RSGA.txt :Issued: 2018 Jan 29 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 29 Issued at 2200Z on 29 Jan 2018 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (30 Jan, 31 Jan, 01 Feb). IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 360 km/s at 29/1149Z. Total IMF reached 7 nT at 29/1015Z. The maximum southward component of Bz reached -4 nT at 29/1046Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 204 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (30 Jan, 31 Jan) and quiet levels on day three (01 Feb). III. Event probabilities 30 Jan-01 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 29 Jan 068 Predicted 30 Jan-01 Feb 068/068/068 90 Day Mean 29 Jan 071 V. Geomagnetic A Indices Observed Afr/Ap 28 Jan 002/002 Estimated Afr/Ap 29 Jan 004/005 Predicted Afr/Ap 30 Jan-01 Feb 007/008-008/008-006/005 VI. Geomagnetic Activity Probabilities 30 Jan-01 Feb A. Middle Latitudes Active 25/20/15 Minor Storm 10/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/15 Minor Storm 30/25/20 Major-severe storm 25/20/20