Viewing archive of Wednesday, 7 February 2001
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 2001 Feb 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 038 Issued at 2200Z on 07 Feb 2001IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity was low. Only a few C-class flares
occurred, all without reported optical flares. All of the sunspot
groups currently on the disk are relatively small and magnetically
simple. New Region 9343 (N03E08) was numbered.
IB. Solar Activity Forecast
Solar activity is expected to be low.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was quiet to unsettled. Solar wind information
suggests that the high speed stream observed on 06 Feb is passing,
returning solar wind parameters to nominal levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 08 Feb to 10 Feb
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Feb 164 Predicted 08 Feb-10 Feb 165/165/165 90 Day Mean 07 Feb 171
V. Geomagnetic A Indices
Observed Afr/Ap 06 Feb 011/011 Estimated Afr/Ap 07 Feb 007/007 Predicted Afr/Ap 08 Feb-10 Feb 005/010-005/010-005/008
VI. Geomagnetic Activity Probabilities 08 Feb to 10 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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