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Issue time:

Colour code


Date: 2017-01-10 20:00 UTC
Area: Vanuatu
Source: Webcam, Himawari-8
Aviation colour code:  unknown
Summit elevation:  361m
Eruption Details: low level eruption eased.obs va dtg: 10/2017z

Volcano ash cloud Vanuatu - Yasur   Wednesday 11 Jan 2017 02:00 UTC

Remarks: va not identifiable via satellite imagery. activity on webcam has eased.

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.