Viewing archive of Wednesday, 6 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 06 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 157 Issued at 2200Z on 06 Jun 2001

IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z

Solar activity was low. Regions 9475 (N20W68), 9484 (S05W33), and 9488 (S20E19), all produced small, impulsive C-class flares during the period. The largest event being a C4/2f at 06/1920 UTC from Region 9475. Region 9488 remains the most magnetically complex region with a beta-gamma classification. The rest of the regions retain fairly simple alpha and beta magnetic classifications. Four new regions were numbered: 9490 (S13E35), 9491 (N23E63), 9492 (N18E62), and 9493 (N05E73).
IB. Solar Activity Forecast
Solar activity is expected to be mostly low with a chance of isolated M-class events possible.
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic field was at quiet to unsettled conditions.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at mostly quiet to unsettled conditions with isolated active periods possible due to a favorably positioned coronal hole and its resulting high speed stream.
III. Event Probabilities 07 Jun to 09 Jun
Class M35%35%35%
Class X05%05%05%
IV. Penticton 10.7 cm Flux
  Observed       06 Jun 158
  Predicted   07 Jun-09 Jun  160/165/165
  90 Day Mean        06 Jun 168
V. Geomagnetic A Indices
  Observed Afr/Ap 05 Jun  005/009
  Estimated     Afr/Ap 06 Jun  009/012
  Predicted    Afr/Ap 07 Jun-09 Jun  012/014-012/014-010/010
VI. Geomagnetic Activity Probabilities 07 Jun to 09 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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