Viewing archive of Thursday, 13 March 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 Mar 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 072 Issued at 2200Z on 13 MAR 1997IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z SOLAR ACTIVITY HAS BEEN VERY LOW. NO FLARES OCCURRED.
REGION 8020 (N08W19), CURRENTLY AN EIGHT SPOT 'CRO' GROUP, REMAINS
THE ONLY ACTIVE REGION ON THE VISIBLE DISK. A 6-DEGREE LONG FAINT
DENSITY FILAMENT LOCATED TO THE EAST OF REGION 8020 DISAPPEARED
BETWEEN 12 AND 13 MARCH.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED FOR THE PAST 24
HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS, WITH THE
CHANCE FOR ISOLATED PERIODS OF ACTIVE CONDITIONS ON DAYS TWO AND
THREE DUE TO RECURRENT ACTIVITY.
III. Event Probabilities 14 MAR to 16 MAR
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 13 MAR 074 Predicted 14 MAR-16 MAR 074/074/074 90 Day Mean 13 MAR 075
V. Geomagnetic A Indices
OBSERVED AFR/AP 12 MAR 016/012 ESTIMATED AFR/AP 13 MAR 010/005 PREDICTED AFR/AP 14 MAR-16 MAR 005/005-010/010-010/005
VI. Geomagnetic Activity Probabilities 14 MAR to 16 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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