Tornadoes



Enhanced Fujita Scale

Scale Estimated Wind Speed Relative Frequency Examples Potential Damage
mph km/h m/s %
EF0 65-85 105-137 29-37 56.88 Benbrook (2016) Minor or No Damage
  • Peels surface off some roofs
  • Some damage to gutters and siding
  • Confirmed tornadoes with no reported damage
  • Those that remain in open fields are always rated EF0
Weak
EF1 68-100 138-177 38-49 31.07 Waverly (2016) Moderate Damage
  • Roofs severely stripped
  • Mobile homes overturned or badly damaged
  • Loss of exterior doors
  • Windows and other glass broken
EF2 111-135 178-217 50-60 8.80 Oxford (2016) Considerable Damage
  • Roofs torn off well-constructed houses
  • Foundations of frame homes shifted
  • Mobile homes completely destroyed
  • Large trees snapped or uprooted
  • Light-object missiles generated
  • Cars lifted off ground
Strong
Significant
EF3 136-165 218-266 61-73 2.51 Mayfield (2016) Severe Damage
  • Entire stories of well-constructed houses destroyed
  • Severe damage to large buildings such as shopping malls
  • Trains overturned
  • Trees debarked
  • Heavy cars lifted off the ground and thrown
  • Structures with weak foundations are badly damaged
Intense
EF4 166-200 267-322 74-90 0.66 Abeline (2016) Extreme Damage
  • Well-constructed and whole frame houses completely leveled
  • Cars and other large objects thrown
  • Small missiles generated
Violent
EF5 > 200 > 322 > 90 0.08 Joplin (2011) Total Destruction
  • Strong framed, well built houses leveled off foundations and swept away
  • Steel-reinforced concrete structures are critically damaged
  • Tall buildings collapse or have severe structural deformations
  • Some cars, trucks and train cars can be thrown approximately 1 mile (1.6 kilometres)

Fujita Scale

Scale Estimated Wind Speed Relative Frequency Average Damage Path Width Potential Damage
mph km/h % in m
F0 40-72 64-116 38.9 33-164 10-50 Light Damage
  • Some damage to chimneys
  • Branches broken off trees
  • Shallow-rooted trees pushed over
  • Sign boards damaged
Weak
F1 73-112 117-180 35.6 98-492 30-150 Moderate Damage
  • The lower limit is the beginning of hurricane wind speed
  • Peels surface off roofs
  • Mobile homes pushed off foundations or overturned
  • Moving autos pushed off the roads
  • Attached garages may be destroyed
F2 113-157 181-253 19.4 360-820 110-250 Significant Damage
  • Roofs torn off frame houses
  • Mobile homes demolished
  • Boxcars overturned
  • Large trees snapped or uprooted
  • Highrise windows broken and blown in
  • Light-object missiles generated
Strong
Significant
F3 158-206 254-332 4.9 660-1640 200-500 Severe Damage
  • Roofs and some walls torn off well-constructed houses
  • Trains overturned
  • Most trees in forest uprooted
  • Heavy cars lifted off the ground and thrown
Intense
F4 207-260 333-418 1.1 1300-3000 400-900 Devastating damage
  • Well-constructed houses leveled
  • Structures with weak foundations blown away some distance
  • Cars thrown and large missiles generated
Violent
F5 261-318 419-512 < 0.1 3600 1100 Incredible Damage
  • Strong frame houses lifted off foundations and carried considerable distances to disintegrate
  • Automobile sized missiles fly through the air farther than 100 metres (330 ft)
  • Trees debarked
  • Steel reinforced concrete structures badly damaged


Units

Language



Icons


Temperature

Humidity

Pressure

Wind speed

Wind gust

Precipitation

Solar radiation

Snow

Apparent temperature

Dew point

UV

Visibility

Cloud base

Evapotranspiration

Indoor temperature

Indoor humidity


Sunrise

Sunset

Moon rise

Moon set

Time

Menu

From

To

Fullscreen

Export as image

Settings

Homepage

Webcam

Table

Graph

Map

Steady

Rising

Falling

Warning

Latitude

Longitude

History

Solar eclipse

Lunar eclipse

GPS

Elevation

Day

Month

Year

High temperature

Low temperature

Day

Night

Spring

Summer

Autumn

Winter