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Tornadoes
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Before thunderstorms develop, a change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere
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Rising air within the thunderstorm updraft tilts the rotating air from horizontal to vertical.
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An area of rotation, 2-6 miles wide, now extends through much of the storm. Most tornadoes form within this area of strong rotation.
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Tornado Myths and Truths
MYTH: Areas near rivers, lakes, and mountains are safe from tornadoes
FACT: No place is safe from tornadoes. Tornadoes have occurred in all 50 United States and are possible any time of the year.
MYTH: The low pressure with a tornado causes buildings to explode as the tornado passes overhead.
FACT: Violent winds and debris slamming into buildings cause most structural damage.
MYTH: Windows should be opened before a tornado approaches to equalize pressure and minimize damage.
FACT: Opening windows allows damaging winds to enter the structure. Leave the windows alone. The most important action is to immediately go to a safe shelter.
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For more information on Weather Hazards Awareness Week in New York contact:
David Nicosia
Warning Coordination Meteorologist
NWS Binghamton:
phone: (607) 770-9531 ext 223
e-mail: david.nicosia@noaa.gov
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