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Issue time:

Colour code

SFC/Flight Level 100


Datum: 2012-04-16 02:00 UTC
Source: Guam Wfo. Mtsat. Gfs Winds. Usgs.
Aviation colour code: 
Summit elevation:  1870 ft [570 m]
Eruption Details: ongoing emissions.

Vulkanasche Wolke - Pagan   Montag 16.04.2012 02:00 UTC

Remarks: ongoing plume moving n looks thicker thannormal but can't confirm va. no pilot rptsindicating va at this time. lgt emission w of

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.