Viewing archive of Saturday, 27 May 2006

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 2006 May 27 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 147 Issued at 2200Z on 27 May 2006

IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z

Solar activity was very low. Region 885 (S12W54) produced two B-class flares today. The largest of these was a B7 flare at 27/1643Z. Region 888 (N06W77) produced a B1 flare at 27/0723Z. Region 889 (S03E12) was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very low, but there is a slight chance for a C-class flare.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet on 28 May. Quiet to unsettled conditions are expected on 29 May. Mostly unsettled conditions, with isolated active periods, are expected on 30 May due to transient effects.
III. Event Probabilities 28 May to 30 May
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       27 May 083
  Predicted   28 May-30 May  080/080/080
  90 Day Mean        27 May 082
V. Geomagnetic A Indices
  Observed Afr/Ap 26 May  001/005
  Estimated     Afr/Ap 27 May  002/003
  Predicted    Afr/Ap 28 May-30 May  005/005-010/010-010/015
VI. Geomagnetic Activity Probabilities 28 May to 30 May
A. Middle Latitudes
Active10%20%20%
Minor storm05%10%10%
Major-severe storm01%01%01%
B. High Latitudes
Active15%25%30%
Minor storm05%10%15%
Major-severe storm01%01%05%

All times in UTC

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