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Issue time:

Colour code

SFC/Flight Level 100


Date: 2017-04-27 01:00 UTC
Area: Papua New Guinea
Source: Himawari-8
Aviation colour code: red
Summit elevation:  1807m
Eruption Details: va last obs mov w ext 5nm at 26/2330z.obs va dtg: 27/0130z

Volcano ash cloud Papua New Guinea - Manam   Thursday 27 Apr 2017 01:00 UTC

Remarks: va last obs in vis sat imagery mov e at 26/2330z. light variable winds make fcst confidence low. height and fcst derived from himawari-8 imagery and access-r model guidance.

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.