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Issue time:

Colour code

SFC/Flight Level 120


Date: 2017-05-10 05:00 UTC
Volcano:Karangetang [api Siau]
Area: Indonesia
Source: Cvghm
Aviation colour code:  yellow
Summit elevation:  1784m
Eruption Details: minor steam/smoke emission obs to fl120.obs va dtg: 10/0550z

Volcano ash cloud Indonesia - Karangetang [api Siau]   Wednesday 10 May 2017 05:00 UTC

Remarks: ground observer indicates that plume is mostly steam/smoke. no further reports of new eruption generating va. advisory terminated.

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.