A large and strong high in the upper levels of the atmosphere drifted slowly east from the central Plains across the Lower Ohio Valley. This strong upper-level high brought six consecutive days of dangerously high heat and humidity to northwest Kentucky, including Henderson and Owensboro. The duration of the dangerous conditions was shorter across the rest of western Kentucky. Across the Pennyrile region (including Madisonville and Hopkinsville), the dangerous heat was limited to just the 20th and 21st. The peak heat index at Henderson was 105 degrees on the 19th, 110 on the 20th and 21st, 108 degrees on the 22nd, 103 on the 23rd, and 105 on the 24th. The peak heat index at Paducah was 103 degrees on the 20th, 107 on the 21st, 105 on the 22nd, and 106 on the 24th. The peak heat index at Hopkinsville was 105 to 106 degrees on the 20th and 21st. Low temperatures were in the mid 70's each night across western Kentucky. At a construction project on Interstate 24 near Kentucky Dam, several members of a work crew apparently became ill due to the heat. Cooling centers were opened in many areas, including Henderson, Owensboro, Paducah, Mayfield, and several smaller cities.

Heat in CRITTENDEN, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CALDWELL, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CALLOWAY, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Excessive Heat in DAVIESS, KENTUCKY
From 19-JUL-11 11:00:00 to 24-JUL-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWSS

Heat in CHRISTIAN, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in HOPKINS, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MARSHALL, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in CRITTENDEN, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MARSHALL, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LYON, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MUHLENBERG, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in LIVINGSTON, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in TODD, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in TRIGG, KENTUCKY
From 20-JUL-11 11:00:00 to 21-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in BALLARD, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CARLISLE, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in HENDERSON, KENTUCKY
From 19-JUL-11 11:00:00 to 24-JUL-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in MCLEAN, KENTUCKY
From 19-JUL-11 11:00:00 to 24-JUL-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in HICKMAN, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in FULTON, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in UNION, KENTUCKY
From 19-JUL-11 11:00:00 to 24-JUL-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WEBSTER, KENTUCKY
From 19-JUL-11 11:00:00 to 24-JUL-11 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in BALLARD, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CARLISLE, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in MCCRACKEN, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in GRAVES, KENTUCKY
From 24-JUL-11 11:00:00 to 24-JUL-11 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in HICKMAN, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in FULTON, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heat in MCCRACKEN, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in GRAVES, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in LIVINGSTON, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in CALLOWAY, KENTUCKY
From 20-JUL-11 11:00:00 to 22-JUL-11 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet