Derecho
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A derecho is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving complex of severe thunderstorms referred to as a mesoscale convective system.
Composite radar image of the June 2012 North American derecho (a progressive derecho) as it moved from Indiana to Virginia
A typical multi-bow serial derecho
A typical progressive derecho
Damage to the Väike-Maarja Church in Estonia after the derecho hit on 8 August 2010
Outflow boundary
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An outflow boundary, also known as a gust front, is a storm-scale or mesoscale boundary separating thunderstorm-cooled air from the surrounding air; similar in effect to a cold front, with passage mar
Thunderstorm with lead gust front near Brookhaven, New Mexico, United States. The gust front is marked by a shelf cloud.
Illustration of a microburst. The wind regime in a microburst is opposite to that of a tornado.
This shelf cloud preceded a derecho in Minnesota
Satellite image of an undular bore