St. Louis, MO
Weather Forecast Office
All three of the following criteria must be exceeded in order for Red Flag Warning conditions to be met:
Sustained 20 ft Winds: >15 mph
Relative Humidity: < 25%
10 hr Dead Fuel Moisture: <9%
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St. Louis, MO
12 Missouri Research Park Drive
St. Charles, MO 63304-5685
636-441-8467
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