Issue time:

Colour code


Date: 2015-03-31 03:00 UTC
Area: Chile
Source: Goes 13 - Ovdas Webcam
Aviation colour code:  orange
Summit elevation:  2847m
Eruption Details: no va detectedobs va dtg: 31/0238z

nuage de cendres volcaniques Chile - Villarrica   mardi 31.03.2015 03:00 UTC

Remarks: va is not detected in nighttime satellite imagery. will continue tomonitor and issue a new advisory if necesary.

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.