Viewing archive of Thursday, 11 January 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 Jan 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 011 Issued at 2200Z on 11 Jan 2001IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z Solar activity was low. Only three isolated C-class
events occurred during the period. The largest was a C1/SF event
from Region 9308 (N14E39) at 10/0215 UTC. Region 9306 (N12E14)
developed into a more complex Beta-Gamma magnetic configuration
during the period but showed little activity during that time. One
new region was numbered, 9309 (N09W16).
IB. Solar Activity Forecast
Solar activity is expected to persist
at low levels with possible isolated M-class events possible.
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 12 Jan to 14 Jan
| Class M | 40% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 11 Jan 166 Predicted 12 Jan-14 Jan 170/175/180 90 Day Mean 11 Jan 174
V. Geomagnetic A Indices
Observed Afr/Ap 10 Jan 005/004 Estimated Afr/Ap 11 Jan 005/005 Predicted Afr/Ap 12 Jan-14 Jan 010/007-015/012-010/012
VI. Geomagnetic Activity Probabilities 12 Jan to 14 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 30% | 25% |
| Minor storm | 10% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 30% |
| Minor storm | 10% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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