Issue time:

Colour code


Date: 2015-02-18 18:00 UTC
Volcano:User Message
Area: Xx
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Eruption Details:

Volcano ash cloud Xx - User Message   Thursday 19 Feb 2015 06:00 UTC

Remarks: the washington vaac is conducting abi-yearlybackup test with the anchorage vaac.

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.