From: Space Weather Prediction Center (NOAA)
Posted: Monday, April 1, 2019
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 92 Issued at 2200Z on 02 Apr 2019 IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: 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 (03 Apr, 04 Apr, 05 Apr). IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 447 km/s at 02/1312Z. Total IMF reached 6 nT at 02/1916Z. The maximum southward component of Bz reached -5 nT at 02/1904Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 196 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (03 Apr, 04 Apr, 05 Apr). III. Event probabilities 03 Apr-05 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 02 Apr 071 Predicted 03 Apr-05 Apr 071/071/070 90 Day Mean 02 Apr 071 V. Geomagnetic A Indices Observed Afr/Ap 01 Apr 006/007 Estimated Afr/Ap 02 Apr 005/006 Predicted Afr/Ap 03 Apr-05 Apr 007/008-007/010-008/010 VI. Geomagnetic Activity Probabilities 03 Apr-05 Apr A. Middle Latitudes Active 20/20/25 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/20 Minor Storm 25/30/30 Major-severe storm 25/30/25
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