Who is the fujita scale named after

The EF Scale takes into account more variables than the original F Scale did when assigning a wind speed rating to a tornado. For each damage indicator, there are 8 degrees of damage DOD ranging from the beginning of visible damage to complete destruction of the damage indicator. The original F Scale did not take these details into account.

For example, with the EF Scale, an EF3 tornado will have estimated wind speeds between and mph and kph , whereas with the original F Scale, an F3 tornado has winds estimated between mph kph.

The wind speeds necessary to cause "F3" damage are not as high as once thought and this may have led to an overestimation of some tornado wind speeds. Please Contact Us. Please try another search. Multiple locations were found. Please select one of the following:. An aerial or ground survey of the damage identifies the Damage Indicators and the EF rating for the item from the degree of damage for the Damage indicators. The EF-scale rating of the tornado is based on the maximum EF rating observed for the damage indicators.

The elegance of the Fujita Scale is evident in the chart below where the average number of fatalities per tornado for every May from to against their EF ratings are plotted - it's a straight line. The number of fatalities correlates precisely with intensity on the Enhanced Fujita Scale.

The scale is logarithmic with intensity going up by a factor of ten each time. Apparently, while tornadoes from EF0 to EF3 have minimal fatalities, clearly EF5 tornadoes cause many deaths and should earn special attention.

The Ten states that have experienced EF5 tornadoes during the month of May in the last 64 years are listed here. The ten states include 55 counties. Perhaps not surprisingly, Oklahoma tops the list. Principal Investigators: Drs. James R. McDonald and Kishor C. Jim St.

Pierre, project administrator, and Dr. Emil Simiu, technical oversight. The data here are taken from excellent resource for Tornadoes: The Tornado History Project a free, searchable database of all reported U. There are over 53, tornadoes currently in the database, each with its own map and forum. The project's main goal is to combine historical data with user submitted items eyewitness memories, photos, videos, etc Joshua Lietz conceived and developed the Tornado History Project. Press ESC to cancel.

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