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Power of 5 meteorologist Trent Magill explains how a bow echo forms

Posted at 3:30 PM, Jul 23, 2019
and last updated 2019-07-23 15:31:29-04

CLEVELAND — Let's talk about bow echoes -- straight-line wind and damage-causing thunderstorms.

They tend to start out as unorganized, scattered storms in a warm, wet atmosphere. Add a wave, a cold front, a gust front -- something to focus the storms -- they'll organize and form a line.

That's when they rapidly strengthen.

Severe thunderstorms are possible.

On the backside, upper-level winds will wrap in. These storms are tall. Those upper-level winds with get forced down. That downward force will push the leading edge out. The storm front bows out -- hence the term, "bow echo."

At this point, you could be looking at winds at 60-plus miles per hour. This could lead to power outages and trees down and really do some damage.

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