Viewing archive of Tuesday, 15 August 2000
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 2000 Aug 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 228 Issued at 2200Z on 15 AUG 2000IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z SOLAR ACTIVITY WAS LOW. ONLY ISOLATED C-CLASS EVENTS
OCCURRED, THE LARGEST BEING A C3/SF AT 15/0153UT FROM REGION 9125
(N22E02). REGION 9125 CONTINUES TO BE THE LARGEST AND MOST
MAGNETICALLY COMPLEX REGION ON THE DISK. THE OTHER MAJOR ACTIVE
REGIONS WERE 9127 (S35W31) AND 9129 (S07E33). TWO NEW REGIONS WERE
NUMBERED: 9134 (N06E53) AND 9135 (S15E14).
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
WITH AN ISOLATED CHANCE OF AN M-CLASS EVENT.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 14/2100Z TO 15/2100Z:
THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 16 AUG to 18 AUG
| Class M | 25% | 25% | 05% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 15 AUG 194 Predicted 16 AUG-18 AUG 190/185/180 90 Day Mean 15 AUG 188
V. Geomagnetic A Indices
OBSERVED AFR/AP 14 AUG 011/012 ESTIMATED AFR/AP 15 AUG 015/015 PREDICTED AFR/AP 16 AUG-18 AUG 012/012-010/010-010/010
VI. Geomagnetic Activity Probabilities 16 AUG to 18 AUG
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 25% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 40% | 35% | 35% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 05% | 05% | 05% |
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