Viewing archive of Thursday, 26 September 1996
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 1996 Sep 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 270 Issued at 2200Z on 26 SEP 1996IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z SOLAR ACTIVITY WAS VERY LOW. THE DISK REMAINS
SPOTLESS.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE
VERY LOW.
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO MINOR STORM LEVELS.
A HIGH SPEED STREAM BEGAN TO HAVE AN EFFECT AROUND MIDDAY AND
CONTINUES. THE GREATER THAN 2 MEV ELECTRON FLUX WAS HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE GENERALLY ACTIVE OVER THE NEXT 24 HOURS DUE
TO CORONAL HOLE EFFECTS. QUIET TO UNSETTLED CONDITIONS ARE
LIKELY BY THE END OF THE PERIOD.
III. Event Probabilities 27 SEP to 29 SEP
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 26 SEP 070 Predicted 27 SEP-29 SEP 070/070/070 90 Day Mean 26 SEP 071
V. Geomagnetic A Indices
OBSERVED AFR/AP 25 SEP 010/010 ESTIMATED AFR/AP 26 SEP 018/020 PREDICTED AFR/AP 27 SEP-29 SEP 025/020-010/008-005/008
VI. Geomagnetic Activity Probabilities 27 SEP to 29 SEP
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 25% | 20% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 30% |
| Minor storm | 40% | 15% | 15% |
| Major-severe storm | 10% | 05% | 05% |
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