Viewing archive of Friday, 15 August 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 Aug 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 227 Issued at 2200Z on 15 AUG 1997IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z SOLAR ACTIVITY WAS VERY LOW. NEW REGION 8075 (N29E46)
WAS NUMBERED TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW THROUGHOUT THE FORECAST PERIOD. THERE REMAINS A SLIGHT CHANCE OF
AN ISOLATED C-CLASS EVENT.
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV
ELECTRON FLUX HAS BEEN AT MODERATE TO HIGH FLUX LEVELS SINCE
15/1259Z.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED THE FIRST DAY OF THE FORECAST WITH
QUIET CONDITIONS EXPECTED THE REMAINDER OF THE FORECAST PERIOD.
III. Event Probabilities 16 AUG to 18 AUG
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 15 AUG 078 Predicted 16 AUG-18 AUG 076/075/075 90 Day Mean 15 AUG 073
V. Geomagnetic A Indices
OBSERVED AFR/AP 14 AUG 018/017 ESTIMATED AFR/AP 15 AUG 010/010 PREDICTED AFR/AP 16 AUG-18 AUG 010/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 16 AUG to 18 AUG
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
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