Forecast

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Colour code

Description

Date: 2013-10-03 09:00 UTC
Volcano:Heard
Area: Indian O.
Source: Pirep At 0853z
Aviation colour code:  nil
Summit elevation:  2745m
Eruption Details: unknownobs va dtg: 03/0900z
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Volcano ash cloud Indian O. - Heard   Thursday 03 Oct 2013 09:00 UTC

Remarks: va seems to be at the level of the summit of the volcano

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.