Viewing archive of Tuesday, 27 March 2007

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 2007 Mar 27 2203 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 086 Issued at 2200Z on 27 Mar 2007

IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z

Solar activity was very low. Region 948 (S02W56) has decayed into a unipolar region.
IB. Solar Activity Forecast
Solar activity is expected to be very low.
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic field was quiet to active. Solar wind speed increased to approximately 550 km/s due to the coronal hole high speed stream.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to unsettled for the next three days (28 - 30 March). Isolated active periods are possible on 28 March due to the coronal hole high speed stream.
III. Event Probabilities 28 Mar to 30 Mar
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFGreen
IV. Penticton 10.7 cm Flux
  Observed       27 Mar 073
  Predicted   28 Mar-30 Mar  074/074/072
  90 Day Mean        27 Mar 078
V. Geomagnetic A Indices
  Observed Afr/Ap 26 Mar  007/011
  Estimated     Afr/Ap 27 Mar  012/015
  Predicted    Afr/Ap 28 Mar-30 Mar  007/010-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Mar to 30 Mar
A. Middle Latitudes
Active15%15%15%
Minor storm05%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active20%15%15%
Minor storm10%05%05%
Major-severe storm05%01%01%

All times in UTC

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