Viewing archive of Saturday, 24 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 24 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 145 Issued at 2200Z on 24 May 2008

IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z

Solar activity was very low. The visible disk remains spotless.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet to unsettled during the past 24 hours. Solar wind velocities at ACE ranged between 450-580 km/s today. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled, with a chance for isolated active conditions at high latitudes, for the next three days (25-27 May).
III. Event Probabilities 25 May to 27 May
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       24 May 069
  Predicted   25 May-27 May  068/068/068
  90 Day Mean        24 May 071
V. Geomagnetic A Indices
  Observed Afr/Ap 23 May  007/010
  Estimated     Afr/Ap 24 May  007/010
  Predicted    Afr/Ap 25 May-27 May  008/010-005/008-005/008
VI. Geomagnetic Activity Probabilities 25 May to 27 May
A. Middle Latitudes
Active20%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active30%25%25%
Minor storm10%10%10%
Major-severe storm05%01%01%

All times in UTC

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