Viewing archive of Monday, 5 May 2008

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 2008 May 05 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 126 Issued at 2200Z on 05 May 2008

IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z

Solar activity was very low. Region 993 (S31E14) remains a simple bipolar sunspot group.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic field was predominately at quiet to unsettled levels. An isolated active period was observed at middle latitudes between 1500-1800Z. Solar wind velocities, as measured at the ACE satellite, remain elevated at about 625 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to unsettled levels with a chance for isolated active periods on days 1 and 2 (06 and 07 May) due to the high speed stream. By day 3 (08 May), geomagnetic conditions are expected to be mostly quiet as the high speed stream abates.
III. Event Probabilities 06 May to 08 May
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       05 May ???
  Predicted   06 May-08 May  068/068/068
  90 Day Mean        05 May 071
V. Geomagnetic A Indices
  Observed Afr/Ap 04 May  006/008
  Estimated     Afr/Ap 05 May  008/010
  Predicted    Afr/Ap 06 May-08 May  008/010-008/008-005/005
VI. Geomagnetic Activity Probabilities 06 May to 08 May
A. Middle Latitudes
Active20%20%10%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active30%30%10%
Minor storm10%10%05%
Major-severe storm05%05%01%

All times in UTC

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

Gillam, MB, Whitehorse, YT, Yellowknife, NT
Fairbanks, AK

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

Edmonton, AB, Iqaluit, NU, Saskatoon, SK
Anchorage, AK, Juneau, AK

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

Calgary, AB
The solar wind speed is currently moderately high (689.3 km/sec.)
The Disturbance Storm Time index predicts moderate storm conditions right now (-56nT)

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