Viewing archive of Thursday, 7 June 2001

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 2001 Jun 07 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 158 Issued at 2200Z on 07 Jun 2001

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity was low. Isolated, mostly minor C-class events occurred during the period. The largest event was an impulsive, optically uncorrelated C6 flare that occurred at 07/2007 UTC. Most of the day's activity came from Regions 9484 (S06W47), 9488 (S18E04), and 9492 (N19E50). Region 9488 remains the most magnetically complex region with a beta-gamma magnetic classification. The rest of the disk and limbs were mostly quiet and stable.
IB. Solar Activity Forecast
Solar activity is expected to be mostly low. A slight chance of isolated M-class is possible.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was at quiet to mostly unsettled conditions.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled conditions.
III. Event Probabilities 08 Jun to 10 Jun
Class M30%30%30%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       07 Jun 165
  Predicted   08 Jun-10 Jun  165/170/170
  90 Day Mean        07 Jun 168
V. Geomagnetic A Indices
  Observed Afr/Ap 06 Jun  006/010
  Estimated     Afr/Ap 07 Jun  012/014
  Predicted    Afr/Ap 08 Jun-10 Jun  012/014-010/010-008/008
VI. Geomagnetic Activity Probabilities 08 Jun to 10 Jun
A. Middle Latitudes
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm05%05%05%
Major-severe storm01%01%01%

All times in UTC

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