- Press Release
- Nov 30, 2022
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 7 November 2017
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 311 Issued at 2200Z on 07 Nov 2017
IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: 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 (08 Nov, 09 Nov, 10 Nov).
IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 675 km/s at 07/1920Z. Total IMF reached 22 nT at 07/1548Z. The maximum southward component of Bz reached -15 nT at 07/1508Z.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on days one and three (08 Nov, 10 Nov) and active to minor storm levels on day two (09 Nov).
III. Event probabilities 08 Nov-10 Nov
Class M 01/01/01
Class X 01/01/01
IV. Penticton 10.7 cm Flux
Observed 07 Nov 068
Predicted 08 Nov-10 Nov 068/068/068
90 Day Mean 07 Nov 082
V. Geomagnetic A Indices
Observed Afr/Ap 06 Nov 000/003
Estimated Afr/Ap 07 Nov 018/032
Predicted Afr/Ap 08 Nov-10 Nov 024/032-028/036-020/028
VI. Geomagnetic Activity Probabilities 08 Nov-10 Nov
A. Middle Latitudes
Minor Storm 30/30/25
Major-severe storm 15/15/05
B. High Latitudes
Minor Storm 25/20/25
Major-severe storm 60/55/50