Viewing archive of Tuesday, 7 November 2017

Solar activity report

Report of Solar-Geophysical Activity 2017 Nov 07 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

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 to 10 Nov
Class M01%01%01%
Class X01%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 to 10 Nov
A. Middle Latitudes
Minor storm30%30%25%
Major-severe storm15%15%05%
B. High Latitudes
Minor storm25%20%25%
Major-severe storm60%55%50%

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