From NWS:
..RED FLAG WARNING IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF SOUTHWEST INDIANA AND MUCH OF WESTERN KENTUCKY... The National Weather Service in Paducah has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM this morning to 7 PM CDT this evening. * Affected Area...In Kentucky, Fire Weather Zones 006, 007, 008 and 009. * Winds...South 10 to 20 mph with gusts up to 30 mph. * Relative Humidity...As low as 22 percent. * Impacts...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 can contribute to extreme fire behavior.