Viewing archive of Wednesday, 13 September 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 Sep 13 2204 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 256 Issued at 2200Z on 13 Sep 2006

IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z

Solar activity was very low. Region 909 (S09W80) produced multiple B-class flares during the past 24 hours. The largest of these was a B7 flare at 13/0416Z.
IB. Solar Activity Forecast
Solar activity is expected to be very low. There is a slight chance for an isolated C-class event.
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days (14-16 Sep). Isolated active conditions are possible on 16 Sep as a recurrent coronal hole rotates into geoeffective position.
III. Event Probabilities 14 Sep to 16 Sep
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       13 Sep 083
  Predicted   14 Sep-16 Sep  082/080/080
  90 Day Mean        13 Sep 077
V. Geomagnetic A Indices
  Observed Afr/Ap 12 Sep  002/004
  Estimated     Afr/Ap 13 Sep  005/005
  Predicted    Afr/Ap 14 Sep-16 Sep  005/005-005/005-008/010
VI. Geomagnetic Activity Probabilities 14 Sep to 16 Sep
A. Middle Latitudes
Active10%10%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%20%
Minor storm05%05%10%
Major-severe storm01%01%01%

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 07:09 UTC

Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future

Whitehorse, YT

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Edmonton, AB, Gillam, MB, Saskatoon, SK, Yellowknife, NT
Anchorage, AK, Juneau, AK
The solar wind speed is currently moderately high (521.6 km/sec.)
The strength of the interplanetary magnetic field is moderate (12.08nT), the direction is slightly South (-2.85nT).

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