Viewing archive of Saturday, 28 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 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 272 Issued at 2200Z on 28 SEP 1996IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z SOLAR ACTIVITY REMAINED VERY LOW. A SMALL REGION
EMERGED NEAR S10W90 AND PRODUCED SMALL FLUCTUATIONS. NO NUMBER
WAS GIVEN TO THIS REGION SINCE NO SPOTS WERE VISIBLE FROM
GROUND-BASED OBSERVATORIES.
IB. Solar Activity Forecast
SOLAR ACTIVITY SHOULD REMAIN
VERY LOW FOR THE NEXT THREE DAYS.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
THE GEOMAGNETIC FIELD RANGED BETWEEN QUIET AND MINOR STORM
LEVELS. ACTIVE TO MINOR STORM CONDITIONS WERE OBSERVED
BETWEEN 28/0300-0900Z. ENERGETIC ELECTRON FLUXES AT
GEOSYNCHRONOUS ORBIT WERE MOSTLY HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
FORECAST TO VARY BETWEEN QUIET AND MINOR STORM LEVELS FOR THE
PERIOD. ANOTHER CORONAL HOLE IS MOVING INTO TERRESTRIALLY
EFFECTIVE POSITION ON THE SUN. THE MOST DISTURBED CONDITIONS
ARE EXPECTED ON 30 SEP.
III. Event Probabilities 29 SEP to 01 OCT
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 28 SEP 071 Predicted 29 SEP-01 OCT 070/070/069 90 Day Mean 28 SEP 071
V. Geomagnetic A Indices
OBSERVED AFR/AP 27 SEP 018/013 ESTIMATED AFR/AP 28 SEP 018/015 PREDICTED AFR/AP 29 SEP-01 OCT 018/020-020/025-015/018
VI. Geomagnetic Activity Probabilities 29 SEP to 01 OCT
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 40% | 35% |
| Minor storm | 15% | 20% | 10% |
| Major-severe storm | 05% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 40% | 35% |
| Minor storm | 25% | 25% | 15% |
| Major-severe storm | 10% | 10% | 05% |
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