Canadian high pressure anchored over the Northern Plains allowed an extremely cold airmass to filter southward into central Illinois on February 14th, resulting in afternoon high temperatures only reaching the single digits above zero everywhere north of the I-70 corridor.  While the Arctic cold front responsible for the cold snap was stalled well to the south over the northern Gulf of Mexico, an upper-level disturbance interacted with a weak surface trough to produce a prolonged period of snow from the evening of February 14th through the morning of February 16th.  Storm total snowfall was greatest east of the Illinois River, where amounts in excess of 5 inches were common.  The highest snow totals of 8 to 12 inches were focused across east-central Illinois along and east of the I-57 corridor.  Numerous traffic accidents occurred due to snow-covered and hazardous roadways.

Heavy Snow in CHRISTIAN, ILLINOIS
From 14-FEB-21 21:00:00 to 16-FEB-21 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 4 to 9 inches of snow across Christian County from the evening of February 14th through the morning of February 16th...including 9.3 in Pana, 8.1 in Morrisonville, and 4.9 1 mile east-northeast of Taylorville.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in COLES, ILLINOIS
From 14-FEB-21 19:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 9 to 12 inches of snow across Coles County from the evening of February 14th through the morning of February 16th...including 11.5 in Mattoon and 10.0 in both Charleston and Cooks Mill.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in DE WITT, ILLINOIS
From 14-FEB-21 22:30:00 to 16-FEB-21 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 6 to 9 inches of snow across DeWitt County from the evening of February 14th through the morning of February 16th...including 8.5 3 miles west-southwest of Farmer City, 7.5 in Clinton, and 6.0 in Lane.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in LAWRENCE, ILLINOIS
From 14-FEB-21 23:00:00 to 16-FEB-21 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 6 to 12 inches of snow across Lawrence County from the evening of February 14th through the morning of February 16th...including 11.2 2 miles west of Lawrenceville and 6.0 in Sumner.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in MENARD, ILLINOIS
From 14-FEB-21 23:00:00 to 16-FEB-21 02:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 9 inches of snow across Menard County from the evening of February 14th through the morning of February 16th...including 8.4 1 mile north of Athens and 5.3 7 miles south-southeast of Petersburg.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in CHAMPAIGN, ILLINOIS
From 14-FEB-21 20:30:00 to 16-FEB-21 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 12 inches of snow across Champaign County from the evening of February 14th through the morning of February 16th...including 11.9 2 miles south-southeast of Urbana, 10.1 2 miles north of Homer, 9.0 in Philo, and 7.7 in Thomasboro.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in CLARK, ILLINOIS
From 14-FEB-21 21:00:00 to 16-FEB-21 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 9 inches of snow across Clark County from the evening of February 14th through the morning of February 16th.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in CLAY, ILLINOIS
From 14-FEB-21 20:30:00 to 16-FEB-21 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 8 to 10 inches of snow across Clay County from the evening of February 14th through the morning of February 16th...including 10.0 in Flora and 9.0 6 miles south-southeast of Clay City.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in CRAWFORD, ILLINOIS
From 14-FEB-21 22:00:00 to 16-FEB-21 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 11 inches of snow across Crawford County from the evening of February 14th through the morning of February 16th...including 11.0 3 miles west of Robinson and 9.7 in Palestine.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in DOUGLAS, ILLINOIS
From 14-FEB-21 19:30:00 to 16-FEB-21 08:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 9 to 11 inches of snow across Douglas County from the evening of February 14th through the morning of February 16th...including 10.5 in Arcola, 10.0 in Tuscola, and 9.0 in Arthur.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in EDGAR, ILLINOIS
From 14-FEB-21 20:30:00 to 16-FEB-21 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 9 inches of snow across Edgar County from the evening of February 14th through the morning of February 16th...including 9.0 in both Paris and Redmon.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in EFFINGHAM, ILLINOIS
From 14-FEB-21 19:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 8 to 12 inches of snow across Effingham County from the evening of February 14th through the morning of February 16th...including 11.3 in Effingham, 9.2 in Beecher City, and 8.3 in Watson.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in JASPER, ILLINOIS
From 14-FEB-21 20:00:00 to 16-FEB-21 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 9 to 11 inches of snow across Jasper County from the evening of February 14th through the morning of February 16th...including 10.6 6 miles north-northeast of Newton and 9.7 in Newton.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in LOGAN, ILLINOIS
From 14-FEB-21 23:00:00 to 16-FEB-21 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 7 inches of snow across Logan County from the evening of February 14th through the morning of February 16th...including 6.3 in Mount Pulaski, 6.2 in New Holland, and 5.4 at the National Weather Service office just east of Lincoln.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in MACON, ILLINOIS
From 14-FEB-21 21:30:00 to 16-FEB-21 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 8 inches of snow across Macon County from the evening of February 14th through the morning of February 16th...including 8.0 in Decatur.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in MOULTRIE, ILLINOIS
From 14-FEB-21 19:30:00 to 16-FEB-21 08:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 10 inches of snow across Moultrie County from the evening of February 14th through the morning of February 16th...including 10.0 2 miles east of Sullivan and 8.8 in Lovington.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in PIATT, ILLINOIS
From 14-FEB-21 21:00:00 to 16-FEB-21 07:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 9 inches of snow across Piatt County from the evening of February 14th through the morning of February 16th...including 9.0 in Atwood, 8.2 3 miles north-northeast of Monticello, and 7.6 in Cisco.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in CUMBERLAND, ILLINOIS
From 14-FEB-21 20:00:00 to 16-FEB-21 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 8 to 11 inches of snow across Cumberland County from the evening of February 14th through the morning of February 16th...including 10.9 3 miles north of Neoga and 9.5 in Toledo.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in MARSHALL, ILLINOIS
From 14-FEB-21 18:00:00 to 16-FEB-21 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 4 to 8 inches of snow across Marshall County from the evening of February 14th through the morning of February 16th.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in RICHLAND, ILLINOIS
From 14-FEB-21 21:30:00 to 16-FEB-21 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 9 to 12 inches of snow across Richland County from the evening of February 14th through the morning of February 16th...including 11.8 2 miles northeast of Olney and 11.5 1 mile east of Dundas.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in SANGAMON, ILLINOIS
From 15-FEB-21 00:30:00 to 16-FEB-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 6 to 10 inches of snow across Sangamon County from the evening of February 14th through the morning of February 16th...including 10.0 in Chatham, 8.0 3 miles northwest of Springfield, and 7.6 2 miles west of Riverton.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in SHELBY, ILLINOIS
From 14-FEB-21 20:00:00 to 16-FEB-21 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 11 inches of snow across Shelby County from the evening of February 14th through the morning of February 16th...including 10.8 4 miles northwest of Mode, 9.5 1 mile east of Shelbyville, and 9.0 in Windsor.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in TAZEWELL, ILLINOIS
From 14-FEB-21 16:00:00 to 16-FEB-21 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 7 inches of snow across Tazewell County from the evening of February 14th through the morning of February 16th...including 6.8 in Pekin and 6.0 1 mile south of Morton.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in VERMILION, ILLINOIS
From 14-FEB-21 21:00:00 to 16-FEB-21 05:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 7 to 12 inches of snow across Vermilion County from the evening of February 14th through the morning of February 16th...including 11.5 1 mile west of Bismarck, 10.0 in Westville, and 8.5 in Danville.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in WOODFORD, ILLINOIS
From 14-FEB-21 18:00:00 to 16-FEB-21 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 4 to 8 inches of snow across Woodford County from the evening of February 14th through the morning of February 16th...including 8.0 1 mile south-southwest of Germantown Hills, 7.5 in Minonk, and 6.5 in Eureka.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.

Heavy Snow in MCLEAN, ILLINOIS
From 14-FEB-21 23:30:00 to 16-FEB-21 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Weather observers reported 5 to 9 inches of snow across McLean County from the evening of February 14th through the morning of February 16th...including 9.0 2 miles east of Normal, 8.2 1 mile east of Heyworth, and 7.0 2 miles east of Bloomington.  Numerous traffic accidents occurred due to snow-covered and hazardous roads.