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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 311 Issued at 2200Z on 07 Nov 2022

By Keith Cowing
Press Release
NOAA SWPC
November 7, 2022
Filed under , , ,
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 311 Issued at 2200Z on 07 Nov 2022
Space weather
NOAA SWPC

IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at high levels for the past 24 hours.

The largest solar event of the period was a M5 event observed at 07/0011Z from Region 3141 (N14E39). There are currently 6 numbered sunspot regions on the disk.

IB. Solar Activity Forecast: Solar activity is likely to be low with a chance for M-class flares and a slight chance for an X-class flare 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 429 km/s at 07/1603Z. Total IMF reached 15 nT at 07/1655Z. The maximum southward component of Bz reached -14 nT at 07/1658Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 9398 pfu.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one, two, and three (08 Nov, 09 Nov, 10 Nov).

III. Event probabilities 08 Nov-10 Nov
Class M 25/25/25
Class X 10/10/10
Proton 01/01/01
PCAF green

IV. Penticton 10.7 cm Flux
Observed 07 Nov 135
Predicted 08 Nov-10 Nov 135/130/130
90 Day Mean 07 Nov 131

V. Geomagnetic A Indices
Observed Afr/Ap 06 Nov 003/003
Estimated Afr/Ap 07 Nov 016/022
Predicted Afr/Ap 08 Nov-10 Nov 011/012-010/012-011/012

VI. Geomagnetic Activity Probabilities 08 Nov-10 Nov
A. Middle Latitudes
Active 35/35/35
Minor Storm 10/10/10
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor Storm 30/30/30
Major-severe storm 45/45/45

Space weather

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