1. Tornados vs. Hurricanes

2. WHAT DO HURRICANES AND TORNADOES HAVE IN COMMON?
Low Pressure
Strong Winds
Hazardous to Life and Property

3. HOW DO THEY DIFFER? Location Size Duration Season of Occurrence
Distinctive Hazards

4. WHEN DO THEY OCCUR? Hurricane season Tornado season
Late Summer and Fall
Tornado season
Spring and Early Summer

5. Hurricanes form over warm (80 °F) tropical seas
Latitude 7-15 degrees North and South of the equator
Tornadoes form over land in the mid-latitudes

6. SIZE AND DURATION OF HURRICANES

7. HURRICANE DAMAGE High winds Torrential rains
mph
Torrential rains
Flash floods
Storm surges as sea level rises

8. HURRICANE CLASSIFICATIONS
Category One -- Winds mph
Category Two -- Winds mph
Category Three -- Winds mph
Category Four -- Winds mph
Category Five -- Winds greater than mph

9. LOCATION OF TORNADOES Most common in the United States
Plains States, Midwest, and Florida
In advance of a cold front
Embedded in hurricanes

10. SIZE AND DURATION OF TORNADOES
Narrow intense storm
1/4 mile wide
Path of 6 miles SW to NW

11. Tornado Hazards Wind Speed 40 – 300 mph Strong updraft in the funnel
Explosions due to pressure contrast

12. Fujita Pearson Tornado Scale
F-0: mph, chimney damage, tree branches broken
F-1: mph, mobile homes pushed off foundation or overturned
F-2: mph, considerable damage, mobile homes demolished, trees uprooted
F-3: mph, roofs and walls torn down, trains overturned, cars thrown
F-4: mph, well-constructed walls leveled
F-5: mph, homes lifted off foundation and carried considerable distances, autos thrown as far as 100 meters