Viewing archive of Saturday, 6 June 1998
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 1998 Jun 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 157 Issued at 2200Z on 06 JUN 1998IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z SOLAR ACTIVITY WAS VERY LOW. TWO NEW REGIONS WERE
NUMBERED, REGION 3235 (N20W33) IS A SMALL BXO SPOT GROUP AND REGION
8236 (N21W10) IS A DEVELOPING DSO GROUP. ALL OTHER REGIONS ARE
STABLE OR DECLINING.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
C CLASS FLARES, WITH AN OUTSIDE CHANCE FOR M CLASS, ARE EXPECTED
FROM REGION 8232 (S19E19).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
THE GEOMAGNETIC FIELD HAS BEEN AT QUIET TO ACTIVE LEVELS.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED EARLY IN THE PERIOD. ACTIVE TO
MINOR STORM CONDITIONS ARE POSSIBLE STARTING ON 8 JUN.
III. Event Probabilities 07 JUN to 09 JUN
| Class M | 20% | 20% | 20% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 06 JUN 115 Predicted 07 JUN-09 JUN 115/115/118 90 Day Mean 06 JUN 109
V. Geomagnetic A Indices
OBSERVED AFR/AP 05 JUN 010/013 ESTIMATED AFR/AP 06 JUN 010/012 PREDICTED AFR/AP 07 JUN-09 JUN 007/010-010/010-018/018
VI. Geomagnetic Activity Probabilities 07 JUN to 09 JUN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 25% |
| Minor storm | 05% | 10% | 15% |
| Major-severe storm | 01% | 05% | 06% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 30% | 30% |
| Minor storm | 05% | 10% | 15% |
| Major-severe storm | 01% | 05% | 06% |
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