A very early season snowfall blanketed southern Illinois during the early morning hours. The highest accumulations ranged from two to three inches along and southeast of a line from Mount Carmel to Harrisburg to Cairo. Places from Mount Vernon to Carbondale received less than an inch. Most of the snow fell in just 1 to 3 hours.  Visibility was below one mile in the heaviest snow bands. Because temperatures had been in the 60's, 70's, and even lower 80's in the days preceding the snow, pavement temperatures were such that the snow melted on roads. However, snowfall rates were high enough to briefly cover bridges and overpasses, resulting in a few accidents. This unseasonably early snowfall was the third earliest snow event of an inch or more at Paducah, Kentucky (across the Ohio River from Metropolis, IL). The earliest was on the day before Halloween of 1993 (2 inches), and the second earliest was on November 11, 2019 (1.2 inches). The snow occurred in cold northerly flow behind a strong cold front and ahead of a deep 500 mb trough from the upper Missississippi Valley to the Ozark plateau.

Winter Weather in ALEXANDER, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in EDWARDS, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WILLIAMSON, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in FRANKLIN, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in GALLATIN, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in HAMILTON, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in HARDIN, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in JOHNSON, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in MASSAC, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in PERRY, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in POPE, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in PULASKI, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in SALINE, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in UNION, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WABASH, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WAYNE, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WHITE, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in JACKSON, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in JEFFERSON, ILLINOIS
From 12-NOV-22 02:00:00 to 12-NOV-22 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS