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Issue time:

Colour code

SFC/Flight Level 100


Date: 2014-03-31 04:00 UTC
Area: Indonesia
Source: Airep, Mtsat
Aviation colour code:  orange
Summit elevation:  813m
Eruption Details: report of ash plume to 10000ft drifting to n.

Volcano ash cloud Indonesia - Krakatau   Monday 31 Mar 2014 04:00 UTC

Remarks: aircraft report of ash to 10000ft drifting to north. vacannot be identified on satellite imagery.

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.