Viewing archive of Thursday, 8 December 2005

Solar activity report

Report of Solar-Geophysical Activity 2005 Dec 08 2204 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 342 Issued at 2200Z on 08 Dec 2005

IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z

Solar activity was low. A C1 flare occurred at 08/1902 UTC from a new region just beyond the east limb near N19E90. Both Regions 826 (S06W80) and 830 (N12W01) produced small B-class flares. New Region 832 (S14W61) emerged on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low. C-class activity is possible in Regions 826 and 830 as well as the new region rotating onto the disk near N19E90.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit was high.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled.
III. Event Probabilities 09 Dec to 11 Dec
Class M05%05%05%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       08 Dec 090
  Predicted   09 Dec-11 Dec  085/080/080
  90 Day Mean        08 Dec 085
V. Geomagnetic A Indices
  Observed Afr/Ap 07 Dec  001/000
  Estimated     Afr/Ap 08 Dec  000/000
  Predicted    Afr/Ap 09 Dec-11 Dec  005/007-008/012-008/010
VI. Geomagnetic Activity Probabilities 09 Dec to 11 Dec
A. Middle Latitudes
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm10%10%10%
Major-severe storm01%01%01%

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