Viewing archive of Thursday, 20 March 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 Mar 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 079 Issued at 2200Z on 20 MAR 1997IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z SOLAR ACTIVITY WAS VERY LOW. THERE WAS NO FLARE
ACTIVITY. NEW REGIONS 8024 (S05W04) AND 8025 (N24W55) WERE NUMBERED
TODAY. BOTH REGIONS ARE WEAK, QUIET AND STABLE. REGION 8025 IS A NEW
CYCLE GROUP.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW.
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
THE GEOMAGNETIC FIELD WAS QUIET AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE ENTIRE FORECAST PERIOD.
III. Event Probabilities 21 MAR to 23 MAR
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 20 MAR 072 Predicted 21 MAR-23 MAR 074/074/074 90 Day Mean 20 MAR 075
V. Geomagnetic A Indices
OBSERVED AFR/AP 19 MAR 004/004 ESTIMATED AFR/AP 20 MAR 004/003 PREDICTED AFR/AP 21 MAR-23 MAR 010/005-010/008-010/008
VI. Geomagnetic Activity Probabilities 21 MAR to 23 MAR
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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