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.

The strength of tornadoes is rated on the Enhanced Fujita, or EF, Scale. Storm chasing photographers take photos underneath a rotating supercell storm system in Maxwell, Nebraska on September 3, 2016.

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 ...

Enhanced Fujita Scale: The EF Scale refines those damage indicators by considering the quality of the structures affected. It differentiates between types of buildings, ...

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 ...

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.

Enhanced Fujita scale measures tornadoes. Tornadoes are classified on the Enhanced Fujita scale, which ranges from zero to five. It takes into account estimated wind speeds, observed damage and ...

The tornado’s initial touchdown occurred at 6:45 p.m. Saturday. The EF2 tornado appeared five miles south of Kadoka and ...

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, it rates tornadoes solely ...

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, ...