Viewing archive of Thursday, 27 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 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 058 Issued at 2200Z on 27 FEB 1997IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z SOLAR ACTIVITY REMAINED VERY LOW. THE DISK REMAINED
SPOTLESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. AFTER
27/1400Z THE FIELD BECAME MOSTLY UNSETTLED WITH SOME ACTIVE LEVEL
CONDITIONS AT HIGH LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED TOMORROW AND QUIET ON THE SECOND
AND THIRD DAYS.
III. Event Probabilities 28 FEB to 02 MAR
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 27 FEB 074 Predicted 28 FEB-02 MAR 074/074/074 90 Day Mean 27 FEB 075
V. Geomagnetic A Indices
OBSERVED AFR/AP 26 FEB 016/013 ESTIMATED AFR/AP 27 FEB 012/008 PREDICTED AFR/AP 28 FEB-02 MAR 010/008-005/008-005/005
VI. Geomagnetic Activity Probabilities 28 FEB to 02 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 10% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 15% | 15% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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