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Issue time:

Colour code

SFC/Flight Level 160


Date: 2015-12-01 17:00 UTC
Area: Guatemala
Source: Goes-east. Nam Winds.
Aviation colour code: 
Summit elevation:  12375 ft [3772 m]
Eruption Details: continuous ash/steam emissions.

Volcano ash cloud Guatemala - Santa-maria   Tuesday 01 Dec 2015 17:00 UTC

Remarks: 557 ww for washington vaac. image shows va moving wnw, w and wswfrom the summit. ...colon

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.