Viewing archive of Thursday, 3 April 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 Apr 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 093 Issued at 2200Z on 03 APR 1997IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z SOLAR ACTIVITY WAS LOW. A LONG DURATION C1 X-RAY EVENT
AT 03/1327Z OCCURRED WHICH WAS NOT OPTICALLY CORRELATED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW THROUGH THE FORECAST PERIOD WITH A CHANCE FOR ISOLATED
M-CLASS EVENTS FROM REGION 8026.
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
THE GEOMAGNETIC FIELD HAS BEEN MOSTLY QUIET WITH AN ISOLATED PERIOD
OF ACTIVE CONDITIONS FROM 03/0300-0600Z. THE GREATER THAN 2 MEV
ELECTRONS REACHED HIGH LEVELS DURING THE PERIOD.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE THE FIRST TWO DAYS OF THE
FORECAST WITH UNSETTLED CONDITIONS EXPECTED THE LAST DAY. THIS
ACTIVITY IS EXPECTED IN RESPONSE TO THE CME OBSERVED ON 01 APRIL.
III. Event Probabilities 04 APR to 06 APR
| Class M | 20% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 03 APR 079 Predicted 04 APR-06 APR 079/079/078 90 Day Mean 03 APR 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 02 APR 009/007 ESTIMATED AFR/AP 03 APR 010/010 PREDICTED AFR/AP 04 APR-06 APR 025/015-025/015-010/010
VI. Geomagnetic Activity Probabilities 04 APR to 06 APR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 50% | 50% | 15% |
| Minor storm | 25% | 25% | 10% |
| Major-severe storm | 10% | 10% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 60% | 60% | 15% |
| Minor storm | 25% | 25% | 10% |
| Major-severe storm | 10% | 10% | 05% |
All times in UTC
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