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SUPER TORNADO OUTBREAK

SUPER TORNADO OUTBREAK. 148 TORNADOES IN 18 HOURS 315-330 DEATHS $3.5 BILLION (2005 DOLLARS) APRIL 3-4, 1974. Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA.

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SUPER TORNADO OUTBREAK

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  1. SUPER TORNADO OUTBREAK 148 TORNADOES IN 18 HOURS 315-330 DEATHS $3.5 BILLION (2005 DOLLARS) APRIL 3-4, 1974 Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA

  2. CAUSEA powerful spring-time low pressure system that developed across the North American Interior Plains on April 1st was intensified when it collided with a system of very moist cold air creating a large contrast in temperature.

  3. SUPER TORNADO OUTBEAK: APRIL 3-4, 1974

  4. STATES IMPACTED BY THE 1974 TORNADO OUTBREAK: APRIL 3-4 • Illinois • Indiana • Ohio • Kentucky • Michigan • Tennessee

  5. STATES IMPACTED BY THE 1974 TORNADO OUTBREAK: APRIL 3-4 • Alabama • Mississippi • Georgia • North Carolina • Virginia • West Virginia • New York

  6. DIMENSIONS OF THE TORNADO OUTBREAK • DURATION: 18 HOURS • MAXIMUM: F5 • AREA OF IMPACT: 13 STATES • DAMAGE: $3.5 BILLION (2005 DOLLARS)

  7. DISTRIBUTION OF STORMS IN THE 1974 OUTBREAK • 6 F5’s (Including the Xenia storm) • 24 F4’s • 34 F3’s • 32 F2’s • 33 F1’s

  8. XENIA, OHIO: ONE OF THE WORST TORNADOES IN HISTORY The tornado formed near Bellbrook, Ohio at 4:30 pm EDT, and reached Xenia as a F5 storm at 4:40 pm.

  9. THE TORNADO DESTROYED XENIA

  10. NATURAL HAZARDS FOR WHICH EVACUATION IS TYPICAL FLOODS GOAL: MOVE PEOPLE OUT OF HARM’S WAY HURRICANES TYPHOONS ADVANCE WARNING FOR TORNADOES IS INADEQUATE EXCEPT FOR GOING TO A SAFE ROOM IN THE HOUSE TSUNAMIS VOLCANIC ERUPTIONS WILDFIRES

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