A surface low occluded prior to it reaching the forecast area with a new surface low developing and tracking further east. This lead to cooler surface temperatures and a cooler warm nose aloft, which impacted precipitation accumulations and types for portions of the forecast area. Wintry mix at the onset of precipitation changed over to freezing rain. The impacts of the cooler surface temperatures kept the precipitation type as freezing rain a bit longer and this lead to higher ice accumulation amounts across the forecast area. This was particularly notable in portions of central and northeastern Missouri, where up to four tenths of an inch of icing occurred. As the system exited region, the precipitation transitioned to some sleet and snow before ending.

Winter Storm in LEWIS, MISSOURI
From 01-JAN-21 04:00:00 to 01-JAN-21 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Widespread freezing rain moved into Lewis County after 4 am and persisted through 8 am, then a bit of a break before light snow developed and moved in around 3 pm. Overall a quarter of an inch of ice accumulation with up to seven tenths of an inch of sleet on top.

Winter Storm in PIKE, MISSOURI
From 01-JAN-21 01:30:00 to 01-JAN-21 16:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Widespread freezing rain moved into Pike County after 130 am and persisted through 730 am, then a bit of a break before light snow developed and moved in around 130 pm. Overall four tenths of an inch of ice accumulation.

Winter Storm in OSAGE, MISSOURI
From 01-JAN-21 00:00:00 to 01-JAN-21 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Widespread freezing rain moved into Osage County after midnight and persisted through 530 am, then a bit of a break before light snow developed and moved in around Noon. Overall three tenths of an inch of ice accumulation with up to half an inch of snow on top.

Winter Storm in MARION, MISSOURI
From 01-JAN-21 02:00:00 to 01-JAN-21 16:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Widespread freezing rain moved into Marion County after 2 am and persisted through 730 am, then a bit of a break before light snow developed and moved in around 230 pm. Overall at least a quarter of an inch of ice accumulation and an inch of snow accumulation on top. Numerous tree limbs broke off due to the weight of the ice across the county.

Winter Storm in AUDRAIN, MISSOURI
From 01-JAN-21 00:30:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Widespread freezing rain moved into Audrain County after 1230 am and persisted through 630 am, then a bit of a break before light snow developed and moved in around 130 pm. Overall at least three tenths of an inch of ice accumulation.

Winter Storm in FRANKLIN, MISSOURI
From 01-JAN-21 00:00:00 to 01-JAN-21 15:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Franklin County after midnight and persisted through 6 am, then a bit of a break before light snow developed and moved in around Noon. Overall a quarter of an inch of ice accumulation, especially over the western portions of the county.

Winter Storm in KNOX, MISSOURI
From 01-JAN-21 04:30:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Knox County after 430 am and persisted through 730 am, then a bit of a break before light snow developed and moved in around 2 pm. Overall between a quarter to half of an inch of ice accumulation.

Winter Storm in SHELBY, MISSOURI
From 01-JAN-21 03:00:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Shelby County after 3 am and persisted through 7 am, then a bit of a break before light snow developed and moved in around 2 pm. Overall between a quarter to half of an inch of ice accumulation.

Winter Storm in MONROE, MISSOURI
From 01-JAN-21 01:30:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Monroe County after 130 am and persisted through 7 am, then a bit of a break before light snow developed and moved in around 2 pm. Overall between a quarter to half of an inch of ice accumulation.

Winter Storm in RALLS, MISSOURI
From 01-JAN-21 01:30:00 to 01-JAN-21 16:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Ralls County after 130 am and persisted through 730 am, then a bit of a break before light snow developed and moved in around 2 pm. Overall four tenths of an inch of ice accumulation.

Winter Storm in CALLAWAY, MISSOURI
From 01-JAN-21 01:00:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Callaway County after 1 am and persisted through 630 am, then a bit of a break before light snow developed and moved in around 1 pm. Overall up to three tenths of an inch of ice accumulation with dusting of snow on top.

Winter Storm in COLE, MISSOURI
From 01-JAN-21 00:00:00 to 01-JAN-21 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Cole County after midnight and persisted through 530 am, then a bit of a break before light snow developed and moved in around Noon. Overall three tenths of an inch of ice accumulation.

Winter Storm in MONITEAU, MISSOURI
From 01-JAN-21 00:00:00 to 01-JAN-21 14:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Moniteau County after midnight and persisted through 5 am, then a bit of a break before light snow developed and moved in around Noon. Overall three tenths of an inch of ice accumulation.

Winter Storm in MONTGOMERY, MISSOURI
From 01-JAN-21 00:30:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Montgomery County after 1230 am and persisted through 6 am, then a bit of a break before light snow developed and moved in around 1 pm. Overall at least three tenths of an inch of ice accumulation, especially across northern portions of Montgomery County.

Winter Storm in LINCOLN, MISSOURI
From 01-JAN-21 01:00:00 to 01-JAN-21 16:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Lincoln County after 1 am and persisted through 630 am, then a bit of a break before light snow developed and moved in around 1 pm. Overall at least three tenths of an inch of ice accumulation, especially across northern portions of Lincoln County.

Winter Storm in BOONE, MISSOURI
From 01-JAN-21 01:00:00 to 01-JAN-21 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread freezing rain moved into Boone County after midnight and persisted through 630 am, then a bit of a break before light snow developed and moved in around 1 pm. Overall around three tenths of an inch of ice accumulation with up to half an inch of snow on top. There were several reports of power lines knocked down as well as several trees.

Winter Storm in GASCONADE, MISSOURI
From 01-JAN-21 00:00:00 to 01-JAN-21 15:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Widespread freezing rain moved into Gasconade County after midnight and persisted through 6 am, then a bit of a break before light snow developed and moved in around Noon. Overall a quarter of an inch of ice accumulation with up to half an inch of snow on top.