Severe Weather Formation By: Luke whitaker

Thunderstorm Formation: Thunderstorms usually last 1-2 hours, and form when warm, humid (wet) air rises.

1) Cumulus Stage: warms air rises "updrafts" , and cloud grows.

2) Mature Stage: the clouds at its biggest stage. Large amount of water and precipitation occurs.

3) Dissipating Stage: precipitation cools the clouds down and the storm dies.

The storm is cooled and done.

Tornado Formation: Most tornadoes occur from the month of April, through June. Tornadoes start as a thunderstorm. They then become violent windstorms that form a vortex. A vortex is a rotating column of air that comes from a very large cloud (cumulonimbus cloud)

The first stage of formation: Thunderstorm begins and warm air rises.

The second stage of formation: Warm air begins to rotate (mesocyclone)

The third stage of formation: Air begins to roll creating a vortex

Hurricane Formation: Hurricanes are the most violent storms on Earth. They are a growing problem because more people are living on the coasts. Hurricanes get their strength from the ocean water. Most have warm water that creates warm/ moist air.

First Stage: Begin as a bunch of thunderstorms

Second Stage: Warm air forms storm, and moves to the center. It then rises creating clouds.

Third Stage: Clouds form a ring called the "eye wall".

Fourth Stage: Ring spins and grows to large sizes.

Fifth Stage: Once over land, the storm dies.

Credits:

Created with images by State Farm - "Lightning strike in Illinois" • Pierce Martin - "Thunderstorm" • NOAA Photo Library - "nssl0054" • jhritz - "Supercell over Busch's" • NOAA Photo Library - "nssl0208" • janeb13 - "tropical cyclone catarina march 26th 2004 cyclone" • skeeze - "lightning strike night" • NASA Goddard Photo and Video - "Cloud Streets over the Atlantic Ocean" • Atmospheric Infrared Sounder - "Amount of Atmospheric Water Vapor in Hurricane Isabel as Observed By AIRS" • NASA Goddard Photo and Video - "Hurricane Blanca Strengthens" • NASA Goddard Photo and Video - "Look into the Atlantic Nor'easter"

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