Red Flag Warning issued April 17 at 12:40AM CDT until April 17 at 9:00PM CDT by NWS Norman OK
Details
* WINDS...Southwest 15 to 25 mph with gusts up to 40 mph, shifting
to the north-northwest at 20 to 25 mph with gusts to 45 mph
possible.
* RELATIVE HUMIDITY...As low as 10 percent.
* TEMPERATURES...Up to 91.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
* SEVERITY...
FUELS (ERC)...70th to 90th percentile...4 (out of 5).
WEATHER...Near Critical...2 (out of 5).
FIRE ENVIRONMENT...6 (out of 10).
Recommendations
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures will
contribute to extreme fire behavior.