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 UTCPrepared 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 2000IA. 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 M | 50% | 50% | 50% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
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 | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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