Frigid air temperatures below zero combined with very strong northwesterly wind gusts from 40 to 60 mph to result in a prolonged period of life-threatening wind chills. The entire region exceeded Wind Chill Warning criteria for multiple days and most locations bottomed out between 45 below and 55 below zero. Numerous reports were received of frozen pipes and water-damaged or flooded structures.

Extreme Cold/Wind Chill in BUENA VISTA, IOWA
From 22-DEC-22 02:00:00 to 24-DEC-22 07:00:00 (CST-6)
Reported by: AWOS

Wind chills dropped as low as -48F near Storm Lake (AWOS site KSLB) and 2 miles northeast of Truesdale (Iowa Road Weather Information System site RSLI4), and -47 1 mile south of Newell (Iowa mesonet site NWLI4).

Extreme Cold/Wind Chill in CHEROKEE, IOWA
From 22-DEC-22 03:00:00 to 23-DEC-22 18:00:00 (CST-6)
Reported by: AWOS

Wind chills dropped as low as -48F near Cherokee (AWOS site KCKP) and 10 miles south of Marcus (Iowa Road Weather Information System site MCSI4).

Extreme Cold/Wind Chill in CLAY, IOWA
From 22-DEC-22 03:00:00 to 23-DEC-22 14:00:00 (CST-6)
Reported by: ASOS

Wind chills dropped as low as -51F 3 miles east-southeast of Spencer (Iowa Road Weather Information System site RSPI4) and -46F 3 miles west-northwest of Spencer (ASOS site KSPW).

Extreme Cold/Wind Chill in IDA, IOWA
From 22-DEC-22 02:00:00 to 23-DEC-22 15:00:00 (CST-6)
Reported by: Department of Highways

Wind chills dropped as low as -39F at Ida Grove (Iowa Road Weather Information System site RIGI4).

Extreme Cold/Wind Chill in LYON, IOWA
From 21-DEC-22 23:00:00 to 24-DEC-22 07:00:00 (CST-6)
Reported by: Mesonet

Wind chills dropped as low as -51F 3 miles east-northeast of Doon (Iowa mesonet site DONI4).

Extreme Cold/Wind Chill in O'BRIEN, IOWA
From 22-DEC-22 00:00:00 to 24-DEC-22 00:00:00 (CST-6)
Reported by: AWOS

Wind chills dropped as low as -50F near Sheldon (AWOS site KSHL).

Extreme Cold/Wind Chill in OSCEOLA, IOWA
From 21-DEC-22 23:00:00 to 24-DEC-22 09:00:00 (CST-6)
Reported by: Department of Highways

Wind chills dropped as low as -53F 7 miles southwest of Ocheyedan (Iowa State mesonet site SBEI4) and -47F 2 miles north-northeast of Sibley (Iowa Road Weather Information System site RSYI4).

Extreme Cold/Wind Chill in PLYMOUTH, IOWA
From 22-DEC-22 00:00:00 to 23-DEC-22 14:00:00 (CST-6)
Reported by: Mesonet

Wind chills dropped as low as -50F at Remsen (personal weather station site DVI01628) and -45F at Le Mars (AWOS site KLRJ).

Extreme Cold/Wind Chill in SIOUX, IOWA
From 22-DEC-22 00:00:00 to 24-DEC-22 07:00:00 (CST-6)
Reported by: AWOS

Wind chills dropped as low as -51F near Maurice (AWOS site KSXK) and -48F 1 mile west of Orange City (Iowa Road Weather Information System site RTNI4).

Extreme Cold/Wind Chill in DICKINSON, IOWA
From 22-DEC-22 00:00:00 to 24-DEC-22 01:00:00 (CST-6)
Reported by: Mesonet

Wind chills dropped as low as -48F 2 miles west of Terril (personal weather station site FW7399), -47F 6 miles southwest of Milford (personal weather station site FW1255), and -46F 3 miles south-southeast of Lake Park (personal weather station site AS497).

Extreme Cold/Wind Chill in WOODBURY, IOWA
From 22-DEC-22 01:00:00 to 23-DEC-22 13:00:00 (CST-6)
Reported by: ASOS

Wind chills dropped as low as -51F 3 miles northeast of Sioux City (Iowa Road Weather Information System site RSMI4), -49F 1 mile west of Sergeant Bluff (ASOS site KSUX), and -46F near Moville (Iowa Road Weather Information System site RSCI4).