Viewing archive of Wednesday, 29 May 2002

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 2002 May 29 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 149 Issued at 2200Z on 29 May 2002

IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z

Solar activity was at low levels. The largest event was an optically uncorrelated long duration C8 flare at 29/0246 UTC. Region 9972 (S21E44) produced a C8/Sf at 29/0519 UTC and has shown slight growth. Region 9961 (S21W59) has simplified in magnetic complexity while Region 9963 (N16W43) has remained relatively unchanged since yesterday. Region 9973 (S16E61) has developed a beta-gamma magnetic configuration and a 960 millionths area coverage. Two new regions were numbered today: Region 9974 (N18E58) and Region 9975 (N23E63).
IB. Solar Activity Forecast
Solar activity is expected to be low to moderate. Region 9963 has the potential for low level M-class activity. Region 9973 has the potential for low level M-class activity and a slight chance of producing a major event.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled.
III. Event Probabilities 30 May to 01 Jun
Class M40%40%40%
Class X05%05%05%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       29 May 185
  Predicted   30 May-01 Jun  185/190/190
  90 Day Mean        29 May 183
V. Geomagnetic A Indices
  Observed Afr/Ap 28 May  008/012
  Estimated     Afr/Ap 29 May  008/012
  Predicted    Afr/Ap 30 May-01 Jun  008/015-008/010-005/010
VI. Geomagnetic Activity Probabilities 30 May to 01 Jun
A. Middle Latitudes
Active20%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active25%20%20%
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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