Viewing archive of Tuesday, 15 February 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 Feb 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 046 Issued at 2200Z on 15 FEB 2000IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z SOLAR ACTIVITY WAS LOW. REGION 8867 (S16W47) HAD THE
PERIOD'S ONLY C-CLASS EVENT, A C1/SF AT 1855Z. THE DISK HAS TWELVE
SPOTTED REGIONS, INCLUDING TWO NEW GROUPS: REGIONS 8875 (S23E55) AND
8876 (S13E62). ALL ARE MAGNETICALLY SIMPLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO PERSIST
AT THE LOW LEVEL.
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED AT MID LATITUDES, AND
QUIET TO ACTIVE AT HIGH LATITUDES. SOLAR WIND PARAMETERS HAVE
RETURNED TO MORE NORMAL LEVELS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 16 FEB to 18 FEB
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 15 FEB 156 Predicted 16 FEB-18 FEB 155/150/150 90 Day Mean 15 FEB 168
V. Geomagnetic A Indices
OBSERVED AFR/AP 14 FEB 020/029 ESTIMATED AFR/AP 15 FEB 010/015 PREDICTED AFR/AP 16 FEB-18 FEB 010/008-005/008-010/005
VI. Geomagnetic Activity Probabilities 16 FEB to 18 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 10% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 30% |
| Minor storm | 10% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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