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Weather and Storms: Hurricanes, Air Masses, Fronts, Cyclonic Systems, Thunderstorms, Tornadoes

Explore the various weather phenomena including hurricanes, air masses, fronts, cyclonic systems, thunderstorms, and tornadoes. Learn about their characteristics, causes, and effects. Discover the risks associated with these weather events and how to stay safe. Suitable for Class 5a.

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Weather and Storms: Hurricanes, Air Masses, Fronts, Cyclonic Systems, Thunderstorms, Tornadoes

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  1. Class 5a: Weather and storms

  2. Hurricanes • Start at low pressure centers • Steep pressure gradient  strong winds (74 mph)

  3. Hurricanes

  4. Hurricanes

  5. Hurricanes

  6. Hurricanes • Damage from high winds, rain • Most deaths from flooding

  7. Midlatitude weather: air masses

  8. Air masses • cP (continental polar) • mP (maritime polar)

  9. Air masses • mT (maritime tropical)

  10. Fronts

  11. Warm fronts • Warm air advances over cold

  12. Cold fronts • Cold air plows under warm air

  13. Midlatitude cyclonic systems • Main midlatitude storm system

  14. Midlatitude cyclonic systems • Cyclogenesis • Open stage

  15. Midlatitude cyclonic systems • Occluded • Dissolving

  16. Thunderstorms • Violent, convective storm

  17. Thunderstorms • Hail caused by updrafts; layers of ice • Lightning caused by electrical separation

  18. Thunderstorms • Where? High temperatures, humidity, and instability

  19. Tornadoes • Most violent atmospheric disturbance

  20. Tornadoes • Most common in North America

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