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    Issue time:

    Colour code


    Date: 2012-04-24 19:00 UTC
    Area: Chile
    Source: Goes 13 - Terra - Cat Onemi
    Aviation colour code: 
    Summit elevation:  2806m
    Eruption Details: va seen at 24/1312z.obs va dtg: 24/1840z

    Volcano ash cloud Chile - Tolhuaca   Tuesday 24 Apr 2012 19:00 UTC

    Remarks: onemi office of chile informed that tests are being developedin the area which causes vents .

    This data supplements the official Volcanic Ash Advisory Graphics and Volcanic Ash Advisories. The data is to be used with caution. The official Volcanic Ash Graphics and Volcanic Ash Advisories take precedence in all circumstances. Please refer to national NOTAMs for definitive boundaries of no-fly areas.

    Altitiude levels (International Standard Atmosphere)

    SFC to FL200 - Ash concentrations between the surface and 20,000 feet.
    FL200 to FL350 - Ash concentrations between 20,000 feet and 35,000 feet.
    FL350 to FL550 - Ash concentrations between 35,000 feet and 55,000 feet.
    SFC to 6000FT - Ash concentrations between the surface and 6,000 feet.