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Volcano Hazards Program - VolcView

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Notation and Overlays

Aviation Color Code













Volcano:

Aviation:

Temperature and Trajectory Plots

    Temperature Profile:

  • Click below, then on image, to generate profile.
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Wind Trajectories:
  • Click below, then on image, to place trajectories.
  • Forward trajectories indicate wind direction.
  • Backward trajectories (dashed lines) indicate wind source.
  • Only available for recent images.
  • Colors indicate different altitudes in feet above ground level (AGL): 5,000', 10,000', 20,000', 30,000', 40,000', 50,000'.
  • Circles along each line are spaced one hour apart.



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NOAA Alerts

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Volcanic cloud monitoring alerts are made available by NOAA/CMIS. They are automated and require evaluation by experienced individuals. They are not available to the public.

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Page Last Modified: 2016-08-16 10:06:00