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Issue time:

Colour code


Date: 2017-02-25 11:00 UTC
Area: Indonesia
Source: Himawari-8, Vona, Modis
Aviation colour code:  orange
Summit elevation:  1335m
Eruption Details: va obs to fl070 mov sw at 25/0920z.obs va dtg: 25/1115z

Volcano ash cloud Indonesia - Dukono   Saturday 25 Feb 2017 11:00 UTC

Remarks: va not currently identifiable in satellite imagery due to darkness, however va still expected in area. va height and movement based on 25/0920z himawari-8 imagery, 25/0000z

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.