London Volcanic Ash Advisory Centre (VAAC)

The London VAAC is an International Civil Aviation Organization (ICAO) designated centre, responsible for issuing advisories for volcanic eruptions originating in Iceland and the north-eastern corner of the North Atlantic.

Hosted and run by the Met Office from its Exeter UK headquarters, the London VAAC has specialist forecasters who produce volcanic ash advisories and guidance products using a combination of volcano data; satellite-based, ground-based and aircraft observations; weather forecast models and dispersion models. The volcanic ash forecasts are provided to the standards and tolerances set by the regulator, and support decision-making by the CAA as the lead agency, NATS and airlines.

One of 9 VAACs worldwide, London VAAC provides a reciprocal back-up facility with Toulouse VAAC, operated by Meteo France.

Current Volcanic Ash Advisories (VAA) from London and Toulouse

Map of the 9 VAACs and their respective areas of responsibility

VAAC regions

London

Toulouse

Anchorage

Washington

Montreal

Darwin

Wellington

Tokyo

Buenos Aires

Last updated: 14 August 2014