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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 24 March 2020

Status Report From: Space Weather Prediction Center (NOAA)
Posted: Tuesday, March 24, 2020

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 84 Issued at 2200Z on 24 Mar 2020 IA. Analysis of Solar Active Regions and Activity from 23/2100Z to 24/2100Z: 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 (25 Mar, 26 Mar, 27 Mar). IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 494 km/s at 23/2105Z. Total IMF reached 5 nT at 24/0017Z. The maximum southward component of Bz reached -3 nT at 24/0021Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1303 pfu.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (25 Mar, 26 Mar, 27 Mar). III. Event probabilities 25 Mar-27 Mar Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 24 Mar 071 Predicted 25 Mar-27 Mar 071/071/071 90 Day Mean 24 Mar 071 V. Geomagnetic A Indices Observed Afr/Ap 23 Mar 010/010 Estimated Afr/Ap 24 Mar 005/005 Predicted Afr/Ap 25 Mar-27 Mar 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 25 Mar-27 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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