Advertise Here

View All Articles

What is the Fujita tornado damage scale or fujita scale?

The Fujita Tornado Damage Scale (F-Scale) was developed by University of Chicago Professor Dr. T. Theodore Fujita in 1971 to estimate tornado strength based on damage of homes hit by tornados. On February 1, 2007 the National Weather Service updated the F-Scale to the Enhanced Fujita Scale (EF-Scale) which classifies tornados based on 28 different structures including trees, mobile homes, and other types of buildings. The EF range of tornado intensities remains as before, zero to five, with ‘EF0’ being the weakest, associated with very little damage and ‘EF5’ representing complete destruction.

 

Enhanced Fujita (EF) Tornado Scale
EF Number Typical Damage
EF 0 (65-85mph) Light damage: Peels surface off some roofs; some damage to gutters or siding; branches broken off trees; shallow-rooted trees pushed over.
EF 1 (86-110mph) Moderate damage: Roofs severely stripped; mobile homes overturned or badly damaged; loss of exterior doors; windows and other glass broken.
EF 2 (111-135mph) 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.
EF 3 (136-165mph) 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 blown away some distance.
EF 4 (166-200mph) Devastating damage: Whole frame houses Well-constructed houses and whole frame houses completely leveled; cars thrown and small missiles generated.
EF 5 (>200 mph) Incredible damage: Strong frame houses leveled off foundations and swept away; automobile-sized missiles fly through the air in excess of 100 m (109 yd); high-rise buildings have significant structural deformation; incredible phenomena will occur.

 

This entry was posted in iAlert FAQ and tagged , , , , , , , , . Bookmark the permalink.

Leave a Reply

Read More

iAlert Services’ WxData.com Joins API3 Alliance as Founding Member

As a leading weather data provider, it will always be our responsibility to help strengthen and develop the API economy as much as we can. That is why iAlert Services (iAlert.com) is proud to announce that…

Read More

Lightning Strike: What are the Capabilities of Lightning Detection Systems

Two decades before the American Revolutionary War, noted inventor and scientist Benjamin Franklin had a strong curiosity when it came to the incredibly destructive force of lightning. Franklin is known for inventing one of the first…

Read More

What is a Nor’easter?

A Nor’easter is a storm along the East Coast of North America, so called because the winds over the coastal area are typically from the northeast.  These storms usually develop in the latitudes between Georgia and…

Read More

Leave a Reply