Viewing archive of Wednesday, 8 July 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 Jul 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 189 Issued at 2200Z on 08 JUL 1998IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z SOLAR ACTIVITY WAS LOW. AN OPTICALLY UNCORRELATED C1
X-RAY FLARE OCCURRED AT 08/1055UT. THE DISK HAS FOUR NUMBERED
SPOTTED REGIONS WHICH HAVE REMAINED QUIET THROUGH THE PERIOD.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
LOW. THE POTENTIAL FOR ISOLATED C-CLASS ACTIVITY STILL EXISTS
THROUGH THE FORECAST PERIOD.
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTECD TO BE QUIET TO UNSETTLED THROUGH THE FORECAST PERIOD.
III. Event Probabilities 09 JUL to 11 JUL
| Class M | 10% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 08 JUL 112 Predicted 09 JUL-11 JUL 111/110/108 90 Day Mean 08 JUL 108
V. Geomagnetic A Indices
OBSERVED AFR/AP 07 JUL 005/006 ESTIMATED AFR/AP 08 JUL 005/008 PREDICTED AFR/AP 09 JUL-11 JUL 005/005-005/008-005/010
VI. Geomagnetic Activity Probabilities 09 JUL to 11 JUL
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 30% |
| Minor storm | 10% | 10% | 15% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
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