Viewing archive of Friday, 8 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 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 220 Issued at 2200Z on 08 AUG 1997IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z SOLAR ACTIVITY WAS VERY LOW. REGION 8069 (N23W74)
CONTINUED TO PRODUCE MINOR B-CLASS FLARES, ALTHOUGH THE REGION WAS
STABLE IN SIZE. REGION 8070 (S20E11) CONTINUED TO GROW SLOWLY.
REGION 8068 (S19W37) REMAINED STABLE AND QUIET. NEW REGION 8071
(N21E62), AN EMERGING CRO SPOT GROUP, WAS NUMBERED TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW. REGIONS 8069 AND 8070 STILL HAVE AN OUTSIDE CHANCE OF
ISOLATED C-CLASS ACTIVITY.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNEITC FIELD IS
EXPECTED TO REMAIN QUIET FOR THE ENTIRE FORECAST PERIOD. HIGH
LATITUDES MAY EXPERIENCE UNSETTLED CONDITIONS BY DAY THREE.
III. Event Probabilities 09 AUG to 11 AUG
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 08 AUG 078 Predicted 09 AUG-11 AUG 078/076/074 90 Day Mean 08 AUG 073
V. Geomagnetic A Indices
OBSERVED AFR/AP 07 AUG 007/006 ESTIMATED AFR/AP 08 AUG 006/007 PREDICTED AFR/AP 09 AUG-11 AUG 005/005-005/005-005/010
VI. Geomagnetic Activity Probabilities 09 AUG to 11 AUG
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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