Widespread snow, mixed at times with sleet, spread across southern Illinois during the afternoon hours on January 11th. This was in response to surface low pressure that developed across the Texas and Oklahoma region. This low then moved east-northeastward across the Missouri Bootheel by early evening on the 12th. Warmer temperatures at the surface and aloft gradually changed the precipitation to rain from south to north. The changeover occurred during the overnight hours of the 11th through the morning of the 12th. Sleet was not widespread enough to significantly lower snowfall amounts. The heaviest snowfall amounts from this system were from the Marion/Carbondale area north and west. The highest amount was 7 inches at Pinckneyville (Perry County). Amounts from 4 to 6 inches were the norm from the Marion/Carbondale area up to Mount Vernon. Amounts tapered down to an inch or two along the Ohio River from Cairo to Metropolis. There were significant travel impacts during the evening hours and into the overnight hours, as snow-covered roads led to numerous accidents. Portions of I-57 and I-64 were closed for a period of time in southern Illinois. At least 10 to 15 vehicles slid off roads in Johnson County. Snowfall rates were near an inch per hour during the evening of the 11th in some areas. At Desoto in Jackson County, 3.5 inches fell in three hours.

Heavy Snow in JEFFERSON, ILLINOIS
From 11-JAN-19 14:00:00 to 12-JAN-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in PERRY, ILLINOIS
From 11-JAN-19 15:00:00 to 12-JAN-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in FRANKLIN, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in JACKSON, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WILLIAMSON, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WAYNE, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in HAMILTON, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in SALINE, ILLINOIS
From 11-JAN-19 18:00:00 to 12-JAN-19 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WABASH, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in EDWARDS, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WHITE, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 07:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in ALEXANDER, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in UNION, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in PULASKI, ILLINOIS
From 11-JAN-19 16:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MASSAC, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in JOHNSON, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in POPE, ILLINOIS
From 11-JAN-19 17:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in HARDIN, ILLINOIS
From 11-JAN-19 18:00:00 to 12-JAN-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in GALLATIN, ILLINOIS
From 11-JAN-19 18:00:00 to 12-JAN-19 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter