Issue time:

Colour code

SFC/Flight Level 270


Date: 2013-12-04 03:00 UTC
Area: I
Source: Web Cam, Mtsat2, Cvghm.
Aviation colour code: red
Summit elevation:  2460m
Eruption Details: va plume to fl270 obs at0232z on webcam to n.

Volcano ash cloud I - S   Wednesday 04 Dec 2013 03:00 UTC

Remarks: areas reduced based on curent satellite imagery. significantthunderstorm activity partially obscuring region. height andmovement derived from medan 040000z.

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.