Critical Fire Weather Conditions Continue for Southern California; Much Colder in the Central and Eastern U.S.

Critical fire weather conditions will continue for coastal southern California through today due to moderate to locally strong Santa Ana winds. Particularly Dangerous Situation Red Flag Warnings remain in effect. Cold temperatures continue today from the Midwest to the central Appalachians, with a brief warm up for the end of the week. Another Arctic cold snap is expected over the weekend. Read More >

Enhanced Fujita Scale for Tornado Damage

EF Number	3 Second Gust (mph)
0	65-85
1	86-110
2	111-135
3	136-165
4	166-200
5	Over 200

*** IMPORTANT NOTE ABOUT ENHANCED F-SCALE WINDS: The Enhanced F-scale still is a set of wind estimates (not measurements) based on damage. Its uses three-second gusts estimated at the point of damage based on a judgment of 8 levels of damage to the 28 indicators listed below. These estimates vary with height and exposure. Important: The 3 second gust is not the same wind as in standard surface observations. Standard measurements are taken by weather stations in open exposures, using a directly measured, "one minute mile" speed. For more information, visit the Storm Prediction Center.

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Critical Fire Weather Conditions Continue for Southern California; Much Colder in the Central and Eastern U.S.

Fujita Scale Page