Report of Solar Geophysical Activity (RSGA)

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 86 Issued at 2200Z on 26 Mar 2020
IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: 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 (27 Mar, 28 Mar, 29 Mar).
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 423 km/s at 26/0433Z. Total IMF reached 5 nT at 26/1658Z. The maximum southward component of Bz reached -3 nT at 26/2058Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1658 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (27 Mar, 28 Mar, 29 Mar).
III. Event probabilities 27 Mar-29 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green
IV. Penticton 10.7 cm Flux Observed 26 Mar 070 Predicted 27 Mar-29 Mar 071/071/071 90 Day Mean 26 Mar 071
V. Geomagnetic A Indices Observed Afr/Ap 25 Mar 003/003 Estimated Afr/Ap 26 Mar 005/005 Predicted Afr/Ap 27 Mar-29 Mar 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 27 Mar-29 Mar A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 10/10/10
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