Viewing archive of Wednesday, 7 December 2022

Solar activity report

Report of Solar-Geophysical Activity 2022 Dec 07 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 341 Issued at 2200Z on 07 Dec 2022

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C5 event observed at 07/1304Z from Region 3157 (N16E19). There are currently 7 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected 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 Dec, 09 Dec, 10 Dec).
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 498 km/s at 07/2045Z. Total IMF reached 20 nT at 07/1618Z. The maximum southward component of Bz reached -13 nT at 07/1405Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2496 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to minor storm levels on day one (08 Dec) and quiet to unsettled levels on days two and three (09 Dec, 10 Dec).
III. Event Probabilities 08 Dec to 10 Dec
Class M30%30%30%
Class X10%10%10%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       07 Dec 148
  Predicted   08 Dec-10 Dec 150/150/150
  90 Day Mean        07 Dec 132

V. Geomagnetic A Indices
  Observed Afr/Ap 06 Dec  002/002
  Estimated     Afr/Ap 07 Dec  011/019
  Predicted    Afr/Ap 08 Dec-10 Dec  016/020-010/010-008/008

VI. Geomagnetic Activity Probabilities 08 Dec to 10 Dec
A. Middle Latitudes
Active40%20%15%
Minor storm25%05%01%
Major-severe storm05%01%01%
B. High Latitudes
Active05%15%15%
Minor storm20%25%25%
Major-severe storm65%30%20%

All times in UTC

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Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future

Whitehorse, YT
Fairbanks, AK

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Edmonton, AB, Gillam, MB, Saskatoon, SK, Yellowknife, NT
Anchorage, AK, Juneau, AK

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