Viewing archive of Sunday, 22 August 2010

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 2010 Aug 22 2201 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 234 Issued at 2200Z on 22 Aug 2010

IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z

Solar activity has been at very low levels for the past 24 hours. No flares were observed during the period and no new regions were numbered.
IB. Solar Activity Forecast
Solar activity is expected to be at very low levels for the next three days (23-25 August).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on day one (23 August), at quiet to unsettled levels on day two,(24 August), and unsettled to active levels with a chance for isolated minor storm periods on day three (25 August). This increase in activity is due to the arrival of a recurrent coronal hole high-speed stream.
III. Event Probabilities 23 Aug to 25 Aug
Class M01%01%01%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       22 Aug 075
  Predicted   23 Aug-25 Aug  074/075/075
  90 Day Mean        22 Aug 077
V. Geomagnetic A Indices
  Observed Afr/Ap 21 Aug  003/003
  Estimated     Afr/Ap 22 Aug  001/002
  Predicted    Afr/Ap 23 Aug-25 Aug  005/005-007/008-015/015
VI. Geomagnetic Activity Probabilities 23 Aug to 25 Aug
A. Middle Latitudes
Minor storm01%05%10%
Major-severe storm01%01%05%
B. High Latitudes
Minor storm01%10%15%
Major-severe storm01%01%10%

All times in UTC

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