Viewing archive of Friday, 1 December 2000

Solar activity report

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2000 Dec 01 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 336 Issued at 2200Z on 01 Dec 2000

IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 01-2100Z

Solar activity was low. Isolated C-class flares occurred, with Regions 9246 (S12E04), 9242 (N21W28), and 9240 (N09W43) contributing. The nine spot groups on the disk were stable or declining, as little of significance occurred. There was limb activity associated with now-departed Region 9236 (N20). The East Limb was quiet.
IB. Solar Activity Forecast
Solar activity is expected to be low to moderate.
IIA. Geophysical Activity Summary 30-2100Z to 01-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be predominantly unsettled throughout the period.
III. Event Probabilities 02 Dec to 04 Dec
Class M50%50%50%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       01 Dec 185
  Predicted   02 Dec-04 Dec  180/175/170
  90 Day Mean        01 Dec 177
V. Geomagnetic A Indices
  Observed Afr/Ap 30 Nov  004/006
  Estimated     Afr/Ap 01 Dec  007/008
  Predicted    Afr/Ap 02 Dec-04 Dec  010/010-010/010-010/010
VI. Geomagnetic Activity Probabilities 02 Dec to 04 Dec
A. Middle Latitudes
Active25%25%25%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active30%30%30%
Minor storm10%10%10%
Major-severe storm01%01%01%

All times in UTC

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