EF-U: What this unusual tornado rating means PUBLISHED 7:30 PM ET Jul. 10, 2021 PUBLISHED 7:30 PM EDT Jul. 10, 2021
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On Thursday, July 8, Tropical Storm Elsa brought three tornadoes to North Carolina, including one that received an uncommon tornado rating of EF-U.
What You Need To Know
Tornadoes are given a damage rating by the National Weather Service once the damage occurs. Meteorologists and emergency management agencies survey the damage to determine a tornado s strength
Ratings typically rank from EF0, with 65-85 mph winds, to EF5, which contain winds over 200 mph.
Tropical cyclones like Elsa are known to produce brief, weak tornadoes similar to those we saw on Thursday.
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