Viewing archive of Friday, 2 June 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 Jun 02 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 154 Issued at 2200Z on 02 JUN 2000

IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z

SOLAR ACTIVITY WAS HIGH. REGION 9026 (N20E61) PRODUCED AN M7/2B FLARE AT 1938Z. EARLIER, IT HAD AN M1/1F AT 0414Z, AND AN M4/1N AT 0659Z. IN ADDITION, IT GENERATED OCCASIONAL C-CLASS EVENTS. THE REGION CONSISTS OF A SUBSTANTIAL FIELD OF BRIGHT PLAGE, LARGE SPOTS, AND A MODERATE DEGREE OF MAGNETIC COMPLEXITY. MIXED POLARITIES MAY BE PRESENT IN THE LEADER PENUMBRA. ELSEWHERE, NEW REGION 9028 (N08E12) EMERGED. THE REMAINING DISK REGIONS WERE PREDOMINANTLY QUIET AND STABLE. TODAY'S 10.7 CM SOLAR FLUX WAS FLARE ENHANCED AND ESTIMATED TO BE 155.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO BE MODERATE TO HIGH, WITH M-CLASS FLARES ORIGINATING FROM REGION 9026.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS HIGH.
IIB. Geophysical Activity Forecast
THE GEOMAGNETIC FIELD IS EXPECTED TO PERSIST AT QUIET TO UNSETTLED LEVELS FOR THE NEXT THREE DAYS.
III. Event Probabilities 03 JUN to 05 JUN
Class M70%70%70%
Class X10%10%10%
Proton10%10%10%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observed       02 JUN 155
  Predicted   03 JUN-05 JUN  165/175/185
  90 Day Mean        02 JUN 191
V. Geomagnetic A Indices
OBSERVED AFR/AP 01 JUN  009/012
ESTIMATED AFR/AP 02 JUN  008/010
PREDICTED AFR/AP 03 JUN-05 JUN  010/008-005/010-005/010
VI. Geomagnetic Activity Probabilities 03 JUN to 05 JUN
A. Middle Latitudes
Active20%10%10%
Minor storm05%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Active25%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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