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gust front
- Definição1
- The leading edge of the downdraft from a thunderstorm. A gust front may precede the thunderstorm by several minutes and have winds that can easily exceed 80 mph.
- Fonte1
- SPELLMAN, Frank R. The Handbook of Meteorology. Lanham, Maryland: Scarecrow Press, Inc., 2013. 237 p. ISBN 978-0-8108-8613-1.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Aircraft accident digest n.25. Montreal, 1983. (Cir. 172 AN/108).
- Nota adicional1
- Typical gust front structure and characteristics are: A. A surface wind shift often accompanies the gust front but may lead the front by up to 5 miles. B. Ground-level sustained winds and gusts to 5 0 kt are common; occasionally, winds approach 100 kt. C. The gust front moves faster than the thunderstorm from which it was created and may lead the thunderstorm radar echo by 5 to 10 miles. D. Airplane or ground radars may show the gust front as a thin line echo caused by differences between the high air density behind the front and the relatively low air density ahead of it.
- Nota adicional2
- A gust front or outflow boundary separates a bubble high from the surrounding air.
- Spanish
- frente de ráfagas