:Product: 0305RSGA.txt :Issued: 2019 Mar 05 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 64 Issued at 2200Z on 05 Mar 2019 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (06 Mar, 07 Mar, 08 Mar). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 450 km/s at 05/1114Z. Total IMF reached 6 nT at 05/1238Z. The maximum southward component of Bz reached -4 nT at 04/2236Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 14432 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (06 Mar), quiet to unsettled levels on day two (07 Mar) and quiet to active levels on day three (08 Mar). III. Event probabilities 06 Mar-08 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Mar 072 Predicted 06 Mar-08 Mar 072/072/072 90 Day Mean 05 Mar 071 V. Geomagnetic A Indices Observed Afr/Ap 04 Mar 007/006 Estimated Afr/Ap 05 Mar 005/005 Predicted Afr/Ap 06 Mar-08 Mar 006/005-007/010-011/014 VI. Geomagnetic Activity Probabilities 06 Mar-08 Mar A. Middle Latitudes Active 10/20/30 Minor Storm 01/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/15 Minor Storm 20/25/30 Major-severe storm 10/20/30