A strong upper level ridge of high pressure developed across the Ohio and Tennessee Valleys, producing a record-breaking early season heat wave. Along and west of a line from Mount Vernon to Marion to Metropolis, heat index values exceeded 105 degrees starting on June 12 and continuing through June 16. East of that line, heat indices exceeded 105 degrees from the 13th to the 16th. The most oppressive day was June 13, when dewpoints in the mid 70's to around 80 produced heat index values of 110 to 115. Carbondale broke one daily record high temperature and three daily record warm low temperatures. Paducah, KY (across the Ohio River from Metropolis, IL) tied its June all-time warmest low temperature of 81 degrees. This was only the 2nd time on record that Paducah observed four consecutive days reaching 95 degrees this early in the season (before June 20). The other occurrence was back in 1952, with 8 straight days at or above 95 degrees from June 9-16.

Excessive Heat in ALEXANDER, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in PULASKI, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in UNION, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in JACKSON, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in PERRY, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in JEFFERSON, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in FRANKLIN, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WILLIAMSON, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in JOHNSON, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in MASSAC, ILLINOIS
From 12-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WAYNE, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in EDWARDS, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WABASH, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in HAMILTON, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WHITE, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SALINE, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in GALLATIN, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in POPE, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in HARDIN, ILLINOIS
From 13-JUN-22 10:00:00 to 16-JUN-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS