:Product: 0307RSGA.txt :Issued: 2017 Mar 07 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 66 Issued at 2200Z on 07 Mar 2017 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: 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 (08 Mar, 09 Mar, 10 Mar). IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at unsettled to active levels for the past 24 hours. Solar wind speed reached a peak of 670 km/s at 07/1351Z. Total IMF reached 6 nT at 07/0738Z. The maximum southward component of Bz reached -5 nT at 07/0349Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 31175 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (08 Mar, 09 Mar) and quiet levels on day three (10 Mar). III. Event probabilities 08 Mar-10 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Mar 072 Predicted 08 Mar-10 Mar 072/072/072 90 Day Mean 07 Mar 076 V. Geomagnetic A Indices Observed Afr/Ap 06 Mar 016/022 Estimated Afr/Ap 07 Mar 012/015 Predicted Afr/Ap 08 Mar-10 Mar 010/010-007/008-006/005 VI. Geomagnetic Activity Probabilities 08 Mar-10 Mar A. Middle Latitudes Active 20/10/10 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/15/15 Major-severe storm 25/15/10