Viewing archive of Wednesday, 14 January 1998
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 1998 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 1998IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z SOLAR ACTIVITY WAS LOW. REGION 8131 (S22W22), STILL
SLOWLY GROWING, PRODUCED A C1/SF FLARE AT 14/1311Z, A C4/SF FLARE AT
14/1603Z, AND A C2/SF FLARE AT 14/2038Z. REGION 8135 (S17E56), A 2
SPOT BXO, REMAINED STABLE AND QUIET. THE REMAINDER OF THE VISIBLE
DISK WAS QUIET. A SERIES OF TEN UNCORELATED B-CLASS XRAY BURSTS WERE
ALSO DETECTED TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW. REGION 8131 HAS A GOOD CHANCE OF CONTINUED C-CLASS FLARE
PRODUCTION AND A CHANCE OF AN ISOLATED M-CLASS EVENT.
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
THE GEOMAGNETIC FIELD WAS QUIET AT MID LATITUDES AND QUIET TO
UNSETTLED AT HIGH LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR DAY ONE OF THE FORECAST
PERIOD, THEN MOSTLY UNSETTLED FOR THE REMAINDER OF THE PERIOD, IN
RESPONSE TO TWO MINOR CORONAL MASS EJECTIONS DETECTED ON 11 AND 12
JANUARY. HIGH LATITUDE STATIONS CAN EXPECT ISOLATED PERIODS OF
ACTIVE LEVELS DURING THE LAST TWO DAYS OF THE FORECAST PERIOD.
III. Event Probabilities 15 JAN to 17 JAN
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 14 JAN 094 Predicted 15 JAN-17 JAN 094/096/096 90 Day Mean 14 JAN 095
V. Geomagnetic A Indices
OBSERVED AFR/AP 13 JAN 005/003 ESTIMATED AFR/AP 14 JAN 005/005 PREDICTED AFR/AP 15 JAN-17 JAN 010/008-015/012-010/010
VI. Geomagnetic Activity Probabilities 15 JAN to 17 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
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