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Fire
Weather Watch and Red Flag
Warning Criteria |
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Fire
Weather Watches will be issued to indicate the potential for
dangerous fire weather conditions 24 to 72 hours in advance
of of the expected onset of criteria. A Red Flag Warning is
used to warn of an impending, or occurring Red Flag Event.
Its issuance denotes a high degree of confidence that weather
and fuel conditions consistent with local Red Flag Event criteria
will occur in 12 to 24 hours or less. Forecasters can issue
the watch or warning for all or selected portions within a
fire weather zone. The Red Flag event is verified when the
following weather and fuel conditions listed below are met
simultaneously for any three (3) hours or more during the
period. The warning should remain in effect until the critical
fire weather pattern ends. |
The following
weather and fuel conditions must be forecasted to occur or already
occurring before issuing a Fire Weather Watch and/or Red Flag Warning
for the Oklahoma and Texas panhandles: |
A) Relative
humidities equal to or less than 15 percent
B) 20 foot winds of 20 mph or higher and/or gusts to 35
mph or higher
C) NFDRS adjective fire danger rating of "High"
or higher
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Fire
Weather Watches and Red Flag Warnings may also be issued whenever
dry lightning is forecasted to occur or is ongoing based on
life and property concerns. |
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