Viewing archive of Sunday, 9 April 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 Apr 09 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 099 Issued at 2200Z on 09 Apr 2006

IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z

Solar activity was very low. Region 865 has rotated around the west limb. All other regions have remained quiescent. No new regions were numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic field was at quiet to minor storm levels, with major storming at high latitudes. The geomagnetic storm was the result of a co-rotating interaction region preceding the high speed stream from a coronal hole.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be unsettled to active with a chance for minor storm conditions on 10 April. Quiet to unsettled conditions are expected on 11 - 12 April.
III. Event Probabilities 10 Apr to 12 Apr
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       09 Apr 089
  Predicted   10 Apr-12 Apr  085/080/080
  90 Day Mean        09 Apr 080
V. Geomagnetic A Indices
  Observed Afr/Ap 08 Apr  003/005
  Estimated     Afr/Ap 09 Apr  020/020
  Predicted    Afr/Ap 10 Apr-12 Apr  015/015-008/010-005/005
VI. Geomagnetic Activity Probabilities 10 Apr to 12 Apr
A. Middle Latitudes
Active25%20%15%
Minor storm15%05%01%
Major-severe storm05%01%01%
B. High Latitudes
Active40%30%20%
Minor storm25%10%05%
Major-severe storm15%05%01%

All times in UTC

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