Viewing archive of Monday, 22 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 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 173 Issued at 2200Z on 22 JUN 1998IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z SOLAR ACTIVITY WAS LOW. REGION 8243 (N17W51) GENERATED
A C2/SF FLARE WITH ASSOCIATED TYPE II AND IV RADIO SWEEPS AT
22/0443Z. THE REGION HAS BEEN STABLE SINCE, AND IS CURRENTLY
CLASSIFIED AS A 15-SPOT 'DHO' BETA GROUP. NEW REGION 8253 (N18E76),
A SINGLE SPOT 'HSX' ALPHA, WAS NUMBERED TODAY.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW, WITH REGION 8243 STILL CAPABLE OF ISOLATED C-CLASS
EVENTS.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
THE GEOMAGNETIC FIELD HAS BEEN QUIET TO UNSETTLED AT MIDDLE LATITUDES
AND QUIET TO ACTIVE AT HIGH LATITUDES FOR THE PAST 24 HOURS. THE
GREATER THAN 2 MEV ELECTRON FLUX WAS BRIEFLY IN THE HIGH RANGE
DURING THE INTERVAL 22/1830-2000Z.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED FOR THE NEXT THREE DAYS.
III. Event Probabilities 23 JUN to 25 JUN
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 22 JUN 101 Predicted 23 JUN-25 JUN 101/102/104 90 Day Mean 22 JUN 107
V. Geomagnetic A Indices
OBSERVED AFR/AP 21 JUN 013/015 ESTIMATED AFR/AP 22 JUN 008/010 PREDICTED AFR/AP 23 JUN-25 JUN 005/008-005/008-010/010
VI. Geomagnetic Activity Probabilities 23 JUN to 25 JUN
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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