Viewing archive of Thursday, 7 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 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 219 Issued at 2200Z on 07 AUG 1997IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z SOLAR ACTIVITY WAS VERY LOW. REGION 8069 (N21W62)
EMITTED A SERIES OF B-CLASS, SUB-FAINT FLARES, BUT REMAINED
RELATIVELY UNCHANGED IN SIZE AND COMPLEXITY. REGION 8070 (S19E25)
SHOWED SOME STRONG GROWTH AND IS NOW A DSO SPOT GROUP. REGION 8068
(S20W22) REMAINED STABLE AND QUIET.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW. REGIONS 8069 AND 8070 HAVE AN OUTSIDE CHANCE OF PRODUCING
ISOLATED C-CLASS EVENTS.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO REMAIN QUIET FOR THE ENTIRE FORECAST PERIOD.
III. Event Probabilities 08 AUG to 10 AUG
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 07 AUG 078 Predicted 08 AUG-10 AUG 078/078/076 90 Day Mean 07 AUG 073
V. Geomagnetic A Indices
OBSERVED AFR/AP 06 AUG 005/004 ESTIMATED AFR/AP 07 AUG 005/007 PREDICTED AFR/AP 08 AUG-10 AUG 005/007-005/005-005/005
VI. Geomagnetic Activity Probabilities 08 AUG to 10 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% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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