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Issue time:

Colour code


Date: 2012-05-15 05:00 UTC
Volcano:Karangetang [api Siau]
Area: Sangihe Is
Source: Mtsat
Aviation colour code:  orange
Summit elevation:  1784m
Eruption Details: va plume last obs to fl120 at 14/0630z

Volcano ash cloud Sangihe Is - Karangetang [api Siau]   Tuesday 15 May 2012 05:00 UTC

Remarks: va unidentifiable on sat imagery during the last 23 hours.

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.