Under the Enhanced Fujita scale, there are seven categories of storm. The lowest category is EFU, which is used for storms that don't have enough data or cause enough damage to be classified.

Considering these key indicators, the SAWS concluded that the oThongathi tornado can be rated as an EF3 on the Enhanced Fujita scale, with estimated wind speeds of 225 to 265 km/h that occurred ...

More than 10 tornadoes were recorded in central Illinois on Wednesday, according to the National Weather Service. Find out ...

This is the time of year, when Texas sees more severe thunderstorms that can spawn tornadoes, you might hear more about where a twister ranked on the Enhanced Fujita scale or its EF rating.Among ...

Over the stunning tornado’s entire lifetime, it only traveled 3.02 miles. It ambled along at 4 mph — barely walking pace.

The Enhanced Fujita Scale, love it or hate it, is our current system for rating the hundreds of tornadoes that occur each year across the United States. To much chagrin, ...

Five ‘strong’ EF3 tornadoes tore through Kansas on Sunday night. While the tornadoes may have had winds close to 200 mph, they passed over largely rural areas.

Authorities have identified three eastern North Dakota residents who died in a tornado amid an extraordinary storm event that ...

The Enhanced Fujita Scale became operational on February 1, 2007. It was designed to rate tornadoes based on estimated wind speeds and related damage. The strength of a tornado has nothing to do ...

The Enhanced Fujita scale is used to rate tornadoes. Following tornadic storms Sunday in Denver, the National Weather Service will conduct storm surveys to determine their intensity and path length.