Viewing archive of Friday, 14 January 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 Jan 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 014 Issued at 2200Z on 14 JAN 2000IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z SOLAR ACTIVITY WAS LOW. ONLY 4 C-CLASS EVENTS WERE
NOTED. THE MOST ACTIVE REGION WAS 8827 (S12W58) WHICH HAS SHOWN
SIGNIFICANT GROWTH IN THE LAST 24 HOURS AND ALSO PRODUCED THE
LARGEST EVENT OF THE PERIOD, A C6/SF AT 14/1711UT. THE MOST COMPLEX
REGION REMAINS 8824 (S13E08) WHICH CONTINUES TO SHOW A
BETA-GAMMA-DELTA MAGNETIC CLASSIFICATION. REGION 8824 SHOWED STRONG
PLAGE FLUCTUATION DURING THE PERIOD BUT ONLY PRODUCED A SINGLE
OPTICAL SUBFLARE. REGION 8829 (N17E40) ALSO SHOWED PLAGE
FLUCTUATIONS AND POINT BRIGHTENINGS DURING THE PERIOD. THE REST OF
THE REGIONS SHOWED LITTLE CHANGE OF ACTIVITY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGIONS 8824 AND 8829 ARE BOTH POTENTIAL SOURCES FOR
ISOLATED M AND POSSIBLY X-CLASS FLARES.
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO CONTINUE TO BE QUIET TO UNSETTLED.
III. Event Probabilities 15 JAN to 17 JAN
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | YELLOW | ||
IV. Penticton 10.7 cm Flux
Observed 14 JAN 201 Predicted 15 JAN-17 JAN 210/215/215 90 Day Mean 14 JAN 176
V. Geomagnetic A Indices
OBSERVED AFR/AP 13 JAN 009/010 ESTIMATED AFR/AP 14 JAN 005/005 PREDICTED AFR/AP 15 JAN-17 JAN 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 15 JAN to 17 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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