Issue time:

Colour code


Date: 2014-11-28 18:00 UTC
Area: Japan
Source: Jma
Aviation colour code:  nil
Summit elevation:  1592m
Eruption Details: activity cont. va cld unknown at 20141128/1800zobs va dtg: 28/1715z

Volcano ash cloud Japan - Asosan   Friday 28 Nov 2014 18:00 UTC

Remarks: we will issue further advisory if va is detected in satelliteimagery.

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.