Viewing archive of Sunday, 10 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 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 345 Issued at 2200Z on 10 Dec 2000IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity was low. Only minor C class flares were
observed. All regions appear stable or declining. Two new regions
were numbered today, Region 9264 (S23E65) and Region 9265 (N17E70).
Both appear to contain small H type spot groups. Several CME's have
been observed over the NE limb, apparently associated with regions
on the back-side.
IB. Solar Activity Forecast
Solar activity is expected to remain
at low levels until late in the period, when activity is expected to
increase due to returning active regions.
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic field was quiet to unsettled. The field is still
under the influence of a coronal hole.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 11 Dec to 13 Dec
| Class M | 15% | 20% | 25% |
| Class X | 01% | 01% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Dec 147 Predicted 11 Dec-13 Dec 145/148/150 90 Day Mean 10 Dec 175
V. Geomagnetic A Indices
Observed Afr/Ap 09 Dec 013/016 Estimated Afr/Ap 10 Dec 010/012 Predicted Afr/Ap 11 Dec-13 Dec 007/012-005/010-005/010
VI. Geomagnetic Activity Probabilities 11 Dec to 13 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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