This website uses cookies. Read about how we use cookies. OK




Issue time:

Colour code

SFC/Flight Level 120


Date: 2017-05-17 04:00 UTC
Area: Aleutian Islands
Source: Himawari/goes/avo
Aviation colour code: 
Summit elevation:  5676 ft [1730 m]
Eruption Details: appears to be a minor eruption

Volcano ash cloud Aleutian Islands - Cleveland   Wednesday 17 May 2017 04:00 UTC


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.