Viewing archive of Friday, 30 March 2012

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 2012 Mar 30 2200 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 090 Issued at 2200Z on 30 Mar 2012

IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z

Solar activity has been very low for the past 24 hours. Areas of plage and a few small spots have rotated onto the visible disk near the area of old Region 1429, but this region isnt as impressive as anticipated. There were two eruptive filaments from the northern hemisphere, one at 29/1800Z and another at 30/1436Z that were associated with CMEs, neither of which is expected to be geoeffective.
IB. Solar Activity Forecast
Solar activity is expected to be low with a slight chance for an isolated M-class flare.
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to remain at quiet levels for the next three days.
III. Event Probabilities 31 Mar to 02 Apr
Class M15%15%15%
Class X01%01%01%
IV. Penticton 10.7 cm Flux
  Observed       30 Mar 111
  Predicted   31 Mar-02 Apr  115/120/120
  90 Day Mean        30 Mar 119
V. Geomagnetic A Indices
  Observed Afr/Ap 29 Mar  003/003
  Estimated     Afr/Ap 30 Mar  005/005
  Predicted    Afr/Ap 31 Mar-02 Apr  006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 31 Mar to 02 Apr
A. Middle Latitudes
Minor storm01%01%01%
Major-severe storm01%01%01%
B. High Latitudes
Minor storm15%15%15%
Major-severe storm05%05%05%

All times in UTC

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