Viewing archive of Tuesday, 1 June 1999
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 1999 Jun 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 152 Issued at 2200Z on 01 JUN 1999IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z SOLAR ACTIVITY WAS LOW. SEVERAL C-CLASS FLARES OCCURRED
FROM A VARIETY OF ACTIVE REGIONS. THE LARGEST WAS A C6/SF AT
01/1106UT IN REGION 8562 (S16E09). THIS FLARE WAS ASSOCIATED WITH
MINOR RADIO OUTPUT THAT INCLUDED 23 SFU AT 2695 MHZ. NEW REGION 8564
(S15E68) WAS NUMBERED.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Event Probabilities 02 JUN to 04 JUN
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 01 JUN 176 Predicted 02 JUN-04 JUN 178/180/180 90 Day Mean 01 JUN 131
V. Geomagnetic A Indices
OBSERVED AFR/AP 31 MAY 002/004 ESTIMATED AFR/AP 01 JUN 003/010 PREDICTED AFR/AP 02 JUN-04 JUN 005/008-005/008-005/008
VI. Geomagnetic Activity Probabilities 02 JUN to 04 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% |
All times in UTC
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