A Severe Thunderstorm Is . . .

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Presentation transcript:

A Severe Thunderstorm Is . . . One that produces hail at least three-quarters of an inch in diameter, has winds of 58 miles per hour or higher, or produces a tornado.

Risks Posed by Thunderstorms Lightning Hail Downbursts and straight-line winds Flash floods Tornadoes

Thunderstorm Preparedness Understand the risk. Learn to make a small target. Pay attention to warnings.

During a Thunderstorm Avoid: Water sources. The telephone. The outdoors.

If You Are Outdoors . . . Get away from water sources. Seek shelter in a substantial building. If necessary: Take shelter in a car or. Go to low-lying area and make a small target. Avoid natural lightning rods.