Viewing archive of Saturday, 24 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 24 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 055 Issued at 2200Z on 24 Feb 2001IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was low with only two weak C-class X-ray
flares. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be low.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet to unsettled. Fingers of a
southern coronal hole extend far enough north to bring a increase in
solar wind speeds by late on day two.
III. Event Probabilities 25 Feb to 27 Feb
| Class M | 10% | 10% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Feb 137 Predicted 25 Feb-27 Feb 140/135/135 90 Day Mean 24 Feb 166
V. Geomagnetic A Indices
Observed Afr/Ap 23 Feb 009/011 Estimated Afr/Ap 24 Feb 007/007 Predicted Afr/Ap 25 Feb-27 Feb 005/005-005/005-008/008
VI. Geomagnetic Activity Probabilities 25 Feb to 27 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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