Viewing archive of Monday, 1 May 2000
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 2000 May 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 122 Issued at 2200Z on 01 MAY 2000IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 01-2100Z SOLAR ACTIVITY WAS MODERATE DUE TO A SINGLE M1 FLARE
FROM REGION 8971 (N20W61). ALTHOUGH THIS EVENT WAS OPTICALLY
UNCORRELATED BY LAND BASED OBSERVATORIES, THE FLARE LOCATION WAS
VERIFIED BY EIT AND SXT INSTRUMENTS. VERY LITTLE ACTIVITY WAS NOTED
DURING THE REST OF THE PERIOD. ONE NEW REGION WAS NUMBERED: 8981
(S23E30).
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
IIA. Geophysical Activity Summary 30-2100Z to 01-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET TO UNSETTLED WITH TWO ACTIVE
PERIODS OCCURRING AT THE END OF THE PERIOD, 01/15-1800UT AND
01/18-2100UT.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED. ACTIVE CONDITIONS ARE POSSIBLE ON
THE SECOND DAY OF THE PERIOD, DUE TO A POSSIBLY EARTH-DIRECTED
CORONAL MASS EJECTION THAT OCCURRED ON 30 APRIL.
III. Event Probabilities 02 MAY to 04 MAY
| Class M | 30% | 30% | 30% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 01 MAY 158 Predicted 02 MAY-04 MAY 160/155/155 90 Day Mean 01 MAY 189
V. Geomagnetic A Indices
OBSERVED AFR/AP 30 APR 010/011 ESTIMATED AFR/AP 01 MAY 012/012 PREDICTED AFR/AP 02 MAY-04 MAY 010/012-015/020-012/012
VI. Geomagnetic Activity Probabilities 02 MAY to 04 MAY
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 30% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
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