Viewing archive of Friday, 7 March 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 Mar 07 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 067 Issued at 2200Z on 07 Mar 2008

IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z

Solar activity was very low. Region 984 (S08W93) rotated quietly around the west limb. The visible disk is now spotless.
IB. Solar Activity Forecast
Solar activity is expected to continue at very low levels.
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic field was quiet. The period ended with solar wind speed near 320 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomegnetic field is expected to range from quiet to minor storming. A high speed coronal hole stream is expected to rotate into a geoeffective position on 8 March. Active to minor storm periods are expected on 8 and 9 March. Expect unsettled to active periods on 10 March.
III. Event Probabilities 08 Mar to 10 Mar
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       07 Mar 071
  Predicted   08 Mar-10 Mar  070/070/070
  90 Day Mean        07 Mar 073
V. Geomagnetic A Indices
  Observed Afr/Ap 06 Mar  002/002
  Estimated     Afr/Ap 07 Mar  002/003
  Predicted    Afr/Ap 08 Mar-10 Mar  012/015-020/020-010/010
VI. Geomagnetic Activity Probabilities 08 Mar to 10 Mar
A. Middle Latitudes
Active40%50%30%
Minor storm20%25%15%
Major-severe storm10%15%05%
B. High Latitudes
Active50%50%40%
Minor storm25%30%20%
Major-severe storm15%20%10%

All times in UTC

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