Viewing archive of Monday, 4 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 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 216 Issued at 2200Z on 04 AUG 1997IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z SOLAR ACTIVITY WAS VERY LOW.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW THROUGHOUT THE FORECAST PERIOD.
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINATELY QUIET TO UNSETTLED THE PAST
24 HOURS. AN ISOLATED PERIOD OF ACTIVE CONDITIONS WAS OBSERVED AT
MID-LATITUDES DURING THE NIGHTTIME SECTORS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED THROUGHOUT THE FORECAST PERIOD.
III. Event Probabilities 05 AUG to 07 AUG
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 04 AUG 073 Predicted 05 AUG-07 AUG 073/073/072 90 Day Mean 04 AUG 073
V. Geomagnetic A Indices
OBSERVED AFR/AP 03 AUG 014/015 ESTIMATED AFR/AP 04 AUG 010/013 PREDICTED AFR/AP 05 AUG-07 AUG 010/010-005/010-005/008
VI. Geomagnetic Activity Probabilities 05 AUG to 07 AUG
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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