Issue time:

Colour code


Date: 2015-02-23 23:00 UTC
Area: Vanuatu
Source: Pireps And Satellite So2 Imagery
Aviation colour code:  unknown
Summit elevation:  1334m
Eruption Details: no observations of significant ash since pirep at 212100z of ash to 8000ft.

Volcano ash cloud Vanuatu - Ambrym   Monday 23 Feb 2015 23:00 UTC

Remarks: satellite imagery shows no sign of ash. no further advisories will be issued until confirmed reports received.

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.