Viewing archive of Tuesday, 21 January 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 Jan 21 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 021 Issued at 2200Z on 21 JAN 1997IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z SOLAR ACTIVITY REMAINED VERY LOW. THE DISK WAS
SPOTLESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS FORECAST TO BE VERY
LOW FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. SOME MID
AND HIGH LATITUDE SITES EXPERIENCED BRIEF ACTIVE CONDITIONS DURING
THE PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD SHOULD
REMAIN QUIET TO UNSETTLED FOR 22 JAN. MOSTLY QUIET CONDITIONS ARE
EXPECTED ON 23-24 JAN.
III. Event Probabilities 22 JAN to 24 JAN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 21 JAN 074 Predicted 22 JAN-24 JAN 074/074/074 90 Day Mean 21 JAN 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 20 JAN 006/005 ESTIMATED AFR/AP 21 JAN 012/009 PREDICTED AFR/AP 22 JAN-24 JAN 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 22 JAN to 24 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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