Report of Solar Geophysical Activity (RSGA)

By Newsroom America Feeds at 7 Nov 17:01

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 Proton 01/01/01 PCAF green

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 Active 35/35/35 Minor Storm 30/30/25 Major-severe storm 15/15/05 B. High Latitudes Active 10/10/15 Minor Storm 25/20/25 Major-severe storm 60/55/50

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