Viewing archive of Tuesday, 28 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 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 028 Issued at 2200Z on 28 JAN 1997IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z SOLAR ACTIVITY WAS VERY LOW.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO MINOR STORM LEVELS.
MID-LATITUDES WERE PREDOMINANTLY QUIET TO UNSETTLED AND HIGH
LATITUDES WERE MOSTLY UNSETTLED TO ACTIVE. A PERIOD OF ACTIVE TO
MINOR STORM CONDITIONS OCCURRED FROM 03-06Z. SOLAR WIND DATA
SUGGESTS THE ACTIVITY WAS DUE TO A HIGH SPEED, LOW DENSITY WIND
STREAM. THE GREATER THAN 2 MEV ELECTRONS EXCEEDED HIGH FLUX LEVELS.
IIB. Geophysical Activity Forecast
GEOMAGNETIC ACTIVITY IS
EXPECTED TO BE PREDOMINANTLY UNSETTLED FOR THE NEXT TWO DAYS
BECOMING QUIET ON DAY THREE.
III. Event Probabilities 29 JAN to 31 JAN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 28 JAN 073 Predicted 29 JAN-31 JAN 074/074/074 90 Day Mean 28 JAN 077
V. Geomagnetic A Indices
OBSERVED AFR/AP 27 JAN 018/013 ESTIMATED AFR/AP 28 JAN 015/020 PREDICTED AFR/AP 29 JAN-31 JAN 015/012-010/008-005/005
VI. Geomagnetic Activity Probabilities 29 JAN to 31 JAN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 10% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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