Viewing archive of Wednesday, 26 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 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 026 Issued at 2200Z on 26 JAN 2000IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z SOLAR ACTIVITY WAS LOW. THREE LOW-LEVEL C-CLASS EVENTS
OCCURRED DURING THE PERIOD. ONE WAS A LONG DURATION C1 AT 26/1157Z
THAT WAS NOT OPTICALLY CORRELATED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
FOR THE FORECAST PERIOD.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO ACTIVE LEVELS DURING THE LAST
24 HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE AT QUIET TO UNSETTLED CONDITIONS THE FIRST DAY OF THE
FORECAST. ACTIVE CONDITIONS ARE EXPECTED FOR THE REMAINDER OF THE
PERIOD AS A RESULT OF A DISTURBANCE FROM A RECURRENT CORONAL HOLE.
III. Event Probabilities 27 JAN to 29 JAN
| Class M | 20% | 20% | 20% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 26 JAN 141 Predicted 27 JAN-29 JAN 135/135/130 90 Day Mean 26 JAN 175
V. Geomagnetic A Indices
OBSERVED AFR/AP 25 JAN 004/007 ESTIMATED AFR/AP 26 JAN 008/010 PREDICTED AFR/AP 27 JAN-29 JAN 015/018-020/025-020/025
VI. Geomagnetic Activity Probabilities 27 JAN to 29 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 50% | 50% |
| Minor storm | 15% | 20% | 20% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 50% | 60% | 60% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 05% | 10% | 10% |
All times in UTC
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