Viewing archive of Monday, 29 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 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 180 Issued at 2200Z on 29 JUN 1998IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z SOLAR ACTIVITY WAS LOW. REGION 8253 (N18W15) PRODUCED
TWO C-CLASS EVENTS DURING THE PERIOD, AND REMAINS THE MOST
IMPRESSIVE GROUP ON THE DISK. SLIGHT DECAY HAS OCCURRED THERE
RECENTLY. REGION 8260 (S20E56) HAS GROWN TO BE A MODERATE SIZED
GROUP IN WHITE LIGHT AT 280 MILLIONTHS, BUT AS YET HAS BEEN
UNPRODUCTIVE. ONE NEW REGION WAS ASSIGNED, THAT BEING 8262 (N18E04).
THE LIMBS WERE QUIET.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 30 JUN to 02 JUL
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 29 JUN 119 Predicted 30 JUN-02 JUL 120/125/125 90 Day Mean 29 JUN 108
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 JUN 002/005 ESTIMATED AFR/AP 29 JUN 003/008 PREDICTED AFR/AP 30 JUN-02 JUL 005/010-010/012-010/012
VI. Geomagnetic Activity Probabilities 30 JUN to 02 JUL
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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