Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 2 January 2020

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 2 Issued at 2200Z on 02 Jan 2020

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 on days one, two, and three (03 Jan, 04 Jan, 05 Jan).

IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 391 km/s at 02/1846Z. Total IMF reached 5 nT at 02/2034Z. The maximum southward component of Bz reached -3 nT at 02/2100Z.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (03 Jan, 04 Jan, 05 Jan).

III. Event probabilities 03 Jan-05 Jan
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green

IV. Penticton 10.7 cm Flux
Observed 02 Jan 072
Predicted 03 Jan-05 Jan 072/072/072
90 Day Mean 02 Jan 070

V. Geomagnetic A Indices
Observed Afr/Ap 01 Jan 003/002
Estimated Afr/Ap 02 Jan 003/003
Predicted Afr/Ap 03 Jan-05 Jan 006/005-005/005-006/005

VI. Geomagnetic Activity Probabilities 03 Jan-05 Jan
A. Middle Latitudes
Active 05/05/05
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