Viewing archive of Saturday, 22 February 1997
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 1997 Feb 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 053 Issued at 2200Z on 22 FEB 1997IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z SOLAR ACTIVITY WAS VERY LOW. THE VISIBLE DISK IS
CURRENTLY SPOTLESS AND FEATURELESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED WITH AN INCREASE TO ACTIVE LEVELS
ON DAYS 2 AND 3 DUE TO RECURRENT ACTIVITY.
III. Event Probabilities 23 FEB to 25 FEB
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 22 FEB 074 Predicted 23 FEB-25 FEB 073/073/073 90 Day Mean 22 FEB 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 21 FEB 011/010 ESTIMATED AFR/AP 22 FEB 008/006 PREDICTED AFR/AP 23 FEB-25 FEB 010/010-015/015-015/010
VI. Geomagnetic Activity Probabilities 23 FEB to 25 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 30% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 05% | 05% |
All times in UTC
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