Record-breaking cold and brisk winds combined to produce dangerously low wind chills. Bitterly cold wind chills from 10 to 24 below zero were observed across southern Illinois. Southern Illinois had not seen a cold stretch of this magnitude this late in the season since 1960. In some cases, the low temperature on the 19th was the coldest temperature ever recorded this late in the season. Actual low temperatures dropped as low as 7 below zero at Carbondale, 11 below at Cairo, 13 below at Mount Vernon and Metropolis, 12 below at Harrisburg, and 2 below at Carmi. The lowest wind chills were as low as 24 below zero at Cairo, 15 below at Carbondale, 6 below at Mount Vernon, 18 below at Metropolis, 22 below at Harrisburg, and 15 below at Carmi. Some water pipes burst, including a pipe at the Carbondale library. This arctic air was delivered by arctic high pressure that settled southward across Missouri and Arkansas. Temperatures did not modify much due to extensive deep snowcover as far south as Kentucky and Missouri.

Cold/Wind Chill in ALEXANDER, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WABASH, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WAYNE, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WHITE, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WILLIAMSON, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in EDWARDS, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in FRANKLIN, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in GALLATIN, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in HAMILTON, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in HARDIN, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JEFFERSON, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JOHNSON, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in MASSAC, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in PERRY, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in POPE, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in PULASKI, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in SALINE, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in UNION, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JACKSON, ILLINOIS
From 19-FEB-15 02:00:00 to 19-FEB-15 10:00:00 (CST-6)
Property damage: 8.00K
Crop damage: 0.00K
Reported by: AWOS