Three to four days of oppressive heat created hazardous conditions. From the 9th to the 12th, heat indices peaked at or above 105 degrees each afternoon. The oppressive heat actually started on the 10th in the Henderson/Owensboro area and adjacent counties. At the Paducah airport, the highest heat index of this multi-day period was 105 degrees on the 10th. The highest heat index during this heat wave at Princeton was 108 degrees. A rather strong southwest wind flow of hot and humid air prevailed between a slow-moving cold front over the Plains and a stationary high pressure center near the Carolina coast.

Heat in MCCRACKEN, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CALLOWAY, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in MARSHALL, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in LIVINGSTON, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CRITTENDEN, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in LYON, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in TRIGG, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CALDWELL, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in HOPKINS, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MUHLENBERG, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CHRISTIAN, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in TODD, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in WEBSTER, KENTUCKY
From 10-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MCLEAN, KENTUCKY
From 10-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in UNION, KENTUCKY
From 10-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in HENDERSON, KENTUCKY
From 10-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in DAVIESS, KENTUCKY
From 10-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in BALLARD, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CARLISLE, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in HICKMAN, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in FULTON, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in GRAVES, KENTUCKY
From 09-AUG-21 11:00:00 to 12-AUG-21 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet