volcanic ash advisory center

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volcanic ash advisory center (VAAC)

A meteorological center designated by regional air navigation agreement to provide advisory information to meteorological watch offices, area control centers, flight information centers, world area forecast centers, relevant regional area forecast centers, and international OPMET data banks regarding the lateral and vertical extent and forecast movement of volcanic ash in the atmosphere following volcanic eruptions (ICAO).
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References in periodicals archive ?
"Beyond the potential for a major accident linked to engine failures, volcanic ash can be a considerable threat for other reasons," according to the Volcanic Ash Advisory Center (VAAC)
Tristan King, a meteorologist with the Volcanic Ash Advisory Center in Darwin, Australia, said on Monday that if the ash stays on its current course (and doesn't dissipate) it could eventually disrupt air traffic in Sydney, Melbourne, and the country's capital, Canberra.
The Tokyo and Anchorage Volcanic Ash Advisory Centers have been tracking the plume closely, and warned aviators that ash had reached an altitude of 13 km (8 miles).