Viewing archive of Wednesday, 19 February 1997
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 1997 Feb 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 050 Issued at 2200Z on 19 FEB 1997IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z SOLAR ACTIVITY WAS VERY LOW. NO FLARES OCCURRED.
REGION 8018 (N04W76), THE ONLY ACTIVE REGION ON THE VISIBLE DISK,
HAS DECAYED INTO AN 'AXX' SPOT GROUP.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET AT ALL LATITUDES FOR THE PAST 24
HOURS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT TWO DAYS, AND MOSTLY
UNSETTLED WITH THE CHANCE FOR ISOLATED PERIODS OF ACTIVE CONDITIONS
ON DAY THREE.
III. Event Probabilities 20 FEB to 22 FEB
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 19 FEB 072 Predicted 20 FEB-22 FEB 073/073/073 90 Day Mean 19 FEB 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 18 FEB 008/007 ESTIMATED AFR/AP 19 FEB 005/005 PREDICTED AFR/AP 20 FEB-22 FEB 005/005-010/005-015/010
VI. Geomagnetic Activity Probabilities 20 FEB to 22 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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