:Product: 0329RSGA.txt :Issued: 2019 Mar 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 88 Issued at 2200Z on 29 Mar 2019 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 Mar, 31 Mar, 01 Apr). IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 533 km/s at 28/2153Z. Total IMF reached 6 nT at 28/2108Z. The maximum southward component of Bz reached -4 nT at 29/0711Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 465 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (30 Mar, 31 Mar, 01 Apr). III. Event probabilities 30 Mar-01 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 29 Mar 069 Predicted 30 Mar-01 Apr 068/068/068 90 Day Mean 29 Mar 071 V. Geomagnetic A Indices Observed Afr/Ap 28 Mar 010/011 Estimated Afr/Ap 29 Mar 007/009 Predicted Afr/Ap 30 Mar-01 Apr 008/008-008/008-008/008 VI. Geomagnetic Activity Probabilities 30 Mar-01 Apr A. Middle Latitudes Active 20/20/20 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/30/30 Major-severe storm 30/30/30