Severe weather Thunderstorms Thunderstorm Damage Lightning And Thunder Tornadoes Hurricanes Blizzards Severe Weather Safety
Severe Weather <ul><li>Severe weather poses danger to people, structures, and animals. </li></ul>
Thunderstorms <ul><li>Heavy rains, Lightning Flashes, Thunder Roars, And Hail falls during a thunder storm. </li></ul><ul>...
Thunderstorm Damage <ul><li>Thunderstorms can stall over a region, causing rain to fall heavily for a period of time. </li...
Lightning and Thunder <ul><li>A typical bolt of lightning can immediately heat the air to between 15,000 to 60,000 degrees...
Tornadoes <ul><li>Some of the most severe thunderstorms produce tornadoes. </li></ul><ul><li>A violent, whirling wind that...
Hurricanes <ul><li>The most powerful storm. </li></ul><ul><li>A large, swirling, low-pressure system that forms over the w...
Blizzards <ul><li>If the winds are 56 km/h, the temperature is low, the visibility is less than 400 m in falling or blowin...
Severe Weather Safety <ul><li>Take cover inside thunderstorms. </li></ul><ul><li>Listen to the tornado watch and the warni...
Resources <ul><li>Earth Science Book </li></ul><ul><li>http://weathereye.kgan.com/cadet/lightning/thunder.html </li></ul><...
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pd 4 group 6

  1. 1. Severe weather Thunderstorms Thunderstorm Damage Lightning And Thunder Tornadoes Hurricanes Blizzards Severe Weather Safety
  2. 2. Severe Weather <ul><li>Severe weather poses danger to people, structures, and animals. </li></ul>
  3. 3. Thunderstorms <ul><li>Heavy rains, Lightning Flashes, Thunder Roars, And Hail falls during a thunder storm. </li></ul><ul><li>When rising air, water vapor condenses into water droplets or ice crystals. </li></ul><ul><li>Warm, moist air can be forced upward where it cools and condensation occurs, forming cumulonimbus clouds. </li></ul>
  4. 4. Thunderstorm Damage <ul><li>Thunderstorms can stall over a region, causing rain to fall heavily for a period of time. </li></ul><ul><li>Strong winds can cause damage. </li></ul><ul><li>Hail from a thunderstorm can dent cars and aluminum siding on houses. </li></ul>
  5. 5. Lightning and Thunder <ul><li>A typical bolt of lightning can immediately heat the air to between 15,000 to 60,000 degrees Fahrenheit. (That's hotter than the surface of the sun!) </li></ul><ul><li>It's that explosion of air that creates sound waves, which we hear and call thunder. </li></ul><ul><li>Lightning always produces thunder. </li></ul>
  6. 6. Tornadoes <ul><li>Some of the most severe thunderstorms produce tornadoes. </li></ul><ul><li>A violent, whirling wind that moves in a narrow path over land. </li></ul><ul><li>A tornadoes' destructive winds can rip apart buildings and uproot trees. </li></ul>
  7. 7. Hurricanes <ul><li>The most powerful storm. </li></ul><ul><li>A large, swirling, low-pressure system that forms over the warm Atlantic ocean. </li></ul><ul><li>Hurricanes can destroy crops, demolish buildings, and kill people and other animals. </li></ul>
  8. 8. Blizzards <ul><li>If the winds are 56 km/h, the temperature is low, the visibility is less than 400 m in falling or blowing snow, and if these conditions persist for three or more hours. </li></ul><ul><li>Occurs in the winter. </li></ul>
  9. 9. Severe Weather Safety <ul><li>Take cover inside thunderstorms. </li></ul><ul><li>Listen to the tornado watch and the warnings and go to a shelter. </li></ul><ul><li>Go to a hurricane center. </li></ul><ul><li>Listen to the weather coverage on news and prepare for anything. </li></ul><ul><li>For lightning, just stay indoors </li></ul>
  10. 10. Resources <ul><li>Earth Science Book </li></ul><ul><li>http://weathereye.kgan.com/cadet/lightning/thunder.html </li></ul><ul><li>http://weather.gov/om/winter/index.shtml </li></ul><ul><li>http://december212012.com </li></ul>
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