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Issue time:

Colour code


Date: 2017-04-27 18:00 UTC
Area: Italy
Source: Ingv Webcam, Satellite Imagery
Aviation colour code:  orange
Summit elevation:  3330m
Eruption Details: explosive eruption stopped. some lava flowvisible from the crater on webcam

Volcano ash cloud Italy - Etna   Thursday 27 Apr 2017 18:00 UTC

Remarks: t+0 confidence high. va not detectable in spite of goodweather. thin plume mainly composed of steam is possible in thevicinity of the volcano

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.