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Severe Weather Lesson Eric Ghiggia CS255 Severe Weather Topics Winter Storms Thunderstorms Tornadoes Floods Watch vs. Warning A watch is when conditions are favorable for producing severe weather. A warning is when severe weather has been observed or indicated on radar. Winter Storms

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Severe Weather Lesson

Eric Ghiggia

CS255


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Severe Weather Topics

  • Winter Storms

  • Thunderstorms

  • Tornadoes

  • Floods


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Watch vs. Warning

  • A watch is when conditions are favorable for producing severe weather.

  • A warning is when severe weather has been observed or indicated on radar.


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Winter Storms

  • Winter storms can include blizzards, sleet, wind chills, and snow. During a winter storm you need to be careful of frostbite and hypothermia. Frostbite is the loss of feeling and pale appearance of the fingers, toes, nose, or ear lobes.


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Winter Storms Cont.

  • The link below shows how the wind plays a role in making the temperature cooler.

    Wind Chill Chart


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Thunderstorms

  • A severe thunderstorm is defined as a thunderstorm that contains hail that is at least ¾ of an inch in diameter, and/or winds that are 58 mph or greater, and/or tornadoes.

  • The United States has around 100,000 thunderstorms a year, producing 20 million lightening strikes.


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Tornadoes

  • A tornado is a violent rotating column of air extending from a cloud to the surface of the earth.

  • Tornadoes are usually produced by severe thunderstorms.

  • The United States has the highest number of tornadoes in a year with 1,000 per year.


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Floods

  • Flooding can occur when there is a chance of rain for a long period of time.

  • Floods are the most common and widespread of all natural disasters.

  • Each year floods cause billions of dollars of damage.


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More Weather Information

  • Weather.com

  • National Severe Storms Laboratory