Viewing archive of Monday, 16 November 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 Nov 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 320 Issued at 2200Z on 16 NOV 1998IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z SOLAR ACTIVITY WAS LOW. REGION 8383 (S15W24) PRODUCED
SEVERAL C-CLASS X-RAY FLARES. REGION 8385, JUST PAST THE WEST LIMB,
PRODUCED A C7 X-RAY FLARE AND AN ACTIVE SURGE REGION WITH AN EXTENT
OF .12 RV.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GT 10 MEV PROTON
EVENT ENDED AT 16/0955Z WITH A MAXIUM OF 300 PFU OBSERVED AT
14/1245Z.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED FOR THE NEXT THREE DAYS, WITH MINOR STORM
CONDITIONS POSSIBLE AT HIGH LATITUDES THE SECOND AND THIRD DAY DUE
TO A RECURRENT PATTERN OF A NORTHERN POLAR CORONAL HOLE.
III. Event Probabilities 17 NOV to 19 NOV
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 16 NOV 125 Predicted 17 NOV-19 NOV 120/120/115 90 Day Mean 16 NOV 132
V. Geomagnetic A Indices
OBSERVED AFR/AP 15 NOV 005/010 ESTIMATED AFR/AP 16 NOV 008/009 PREDICTED AFR/AP 17 NOV-19 NOV 010/012-015/030-015/045
VI. Geomagnetic Activity Probabilities 17 NOV to 19 NOV
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 35% | 35% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 05% | 05% |
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