Viewing archive of Monday, 28 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 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 118 Issued at 2200Z on 28 APR 1997IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z
SOLAR ACTIVITY WAS VERY LOW. THERE WAS NO FLARE
ACTIVITY NOTED. THE VISIBLE DISK REMAINS QUIET AND STABLE.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW FOR THE ENTIRE FORECAST PERIOD.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
THE GEOMAGNETIC FIELD WAS QUIET AT ALL LATITUDES.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET WITH BRIEF PERIODS OF UNSETTLED ACTIVITY
FOR THE ENTIRE FORECAST PERIOD.
III. Event Probabilities 29 APR to 01 MAY
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 28 APR 072 Predicted 29 APR-01 MAY 072/072/074 90 Day Mean 28 APR 074
V. Geomagnetic A Indices
OBSERVED AFR/AP 27 APR 004/004 ESTIMATED AFR/AP 28 APR 004/008 PREDICTED AFR/AP 29 APR-01 MAY 010/008-010/008-010/012
VI. Geomagnetic Activity Probabilities 29 APR to 01 MAY
| 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% |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
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