The Pocket Book of Weather by Michael Bright

The Pocket Book of Weather by Michael Bright

Author:Michael Bright
Language: eng
Format: epub
Publisher: Bloomsbury Publishing


FACT

A ‘microburst’ wind was responsible for the crash of a commercial airliner at Dallas-Fort Worth International Airport in 1985.

Microbursts and macrobursts

Tornadoes are often blamed for damage caused by ‘microbursts’. These are winds that blast down to the ground from thunderstorms at speeds of more than 240 km/h (150 mph), destroying buildings, blowing down trees and probably accounting for some aircraft crashes. The phenomenon is known generally as a ‘downburst’, but if it affects an area less than 4 km (2.5 miles) square it is known as a ‘microburst’, and if it affects a larger area it is a ‘macroburst’.

Mesoscale winds

These are winds that rise and fall in a short time and generate their own weather. Many have local names, as seen below:



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