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STORMS. Thunderstorms a disturbance in the earth’s atmosphere that involves lightning and thunder; gusty winds, heavy rain, and hail may also be present form in cumulonimbus clouds occur when unequal heating of earth’s surface causes warm, humid air to rise or when warm and cold air collide
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Thunderstorms • a disturbance in the earth’s atmosphere that involves lightning and thunder; gusty winds, heavy rain, and hail may also be present • form in cumulonimbus clouds • occur when unequal heating of earth’s surface causes warm, humid air to rise or when warm and cold air collide • can spawn funnel shaped vortexes
Tornadoes • occur when a funnel cloud touches the ground • a rotating column of air (vortex) of intense low pressure • the high pressure air outside of vortex rushes into the funnel resulting in damage from violent winds and flying debris
Hurricanes: • A massive rotating storm that starts over tropical oceans • has sustained winds of more than 119 kmh • can affect an area 550 km in diameter • lasts for days/weeks • called a typhoon or cyclone depending on where it is located • center is called the “eye” where there is low winds, no rain, low pressure and a bright sky • around “eye” is eye wall with spiraling clouds, heavy rain and strong winds • can make ocean waves 10 meters high
