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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.
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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 • 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.
Winter Storms Cont. • The link below shows how the wind plays a role in making the temperature cooler. Wind Chill Chart
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.
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.
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.
More Weather Information • Weather.com • National Severe Storms Laboratory