A cold front, that was draped northeast-southwest across western Iowa and eastern Nebraska/Kansas, moved south and entered the county warning area during the morning of February 1st.  Broad moist isentropic ascent and overrunning precipitation developed across the entire county warning area gradually through the late morning into the afternoon of February 1st, with the baroclinic zone initially serving as the focus for rain. This first round of precipitation stayed nearly all rain, but snow did begin to mix with rain in northern Missouri and west-central Illinois during the afternoon hours of February 1st as colder air advanced south behind the front.  The cold air became more established in the northwest half of the CWA with wet snow and a snowfall rate approaching 1/hr across parts of northeast Missouri and west central Illinois north of the I-70 corridor during the early morning hours of February 2nd.  The first round brought a wide swath of at least 6-10 inches of snow (with some sleet mixed in) across central/east-central Missouri and west-central Illinois. A second round of heavy snow fell along and south of the I-70 corridor with snowfall rates in excess of 0.5 per hour and occasionally brief periods of 1.5 per hour on Thursday, February 3rd.  An additional 6-8 of snow fell in this area during the morning/afternoon hours of February 3rd with lighter snowfall over northeast Missouri and west central Illinois.

Heavy Snow in CLINTON, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Around half an inch of sleet was reported in parts of Clinton County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 5 to 7 inches.

Heavy Snow in RANDOLPH, ILLINOIS
From 02-FEB-22 06:00:00 to 03-FEB-22 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Around half an inch of sleet was reported in parts of Randolph County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 5.5 to 6.5 inches.

Heavy Snow in MARION, ILLINOIS
From 02-FEB-22 07:00:00 to 03-FEB-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Around half an inch of sleet was reported in parts of Marion County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 3.5 to 8 inches.

Heavy Snow in GREENE, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Greene County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 8 inches.

Heavy Snow in PIKE, ILLINOIS
From 01-FEB-22 20:30:00 to 03-FEB-22 09:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Between 8 to 10 inches of snow fell across Pike County.

Heavy Snow in MACOUPIN, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Macoupin County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 9 inches.

Heavy Snow in FAYETTE, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Fayette County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall of 6 to 8 inches.

Heavy Snow in WASHINGTON, ILLINOIS
From 02-FEB-22 07:00:00 to 03-FEB-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Around half an inch of sleet was reported in parts of Washington County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 7.5 to 9.5 inches.

Heavy Snow in BOND, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Bond County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall of 6 to 8 inches.

Heavy Snow in ST. CLAIR, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Around half an inch of sleet was reported in parts of St. Clair County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 5 to 7 inches.

Heavy Snow in CALHOUN, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Calhoun County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 8 inches.

Heavy Snow in MADISON, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Madison County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 5 to 11.5 inches.

Heavy Snow in MONROE, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Over half an inch of sleet was reported in parts of Monroe County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 8 inches.

Heavy Snow in ADAMS, ILLINOIS
From 01-FEB-22 20:30:00 to 02-FEB-22 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Between 8 to 12 inches of snow fell across Adams County.

Heavy Snow in BROWN, ILLINOIS
From 01-FEB-22 20:30:00 to 03-FEB-22 09:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Between 8 to 12 inches of snow fell across Brown County.

Heavy Snow in JERSEY, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Jersey County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 9 inches.

Heavy Snow in MONTGOMERY, ILLINOIS
From 02-FEB-22 01:00:00 to 03-FEB-22 16:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

There were two rounds of precipitation with this system. The first round was rain changing to a mix of sleet and snow, then another round of heavy snow. Up to a quarter of an inch of sleet as well as a couple inches of snow was reported in parts of Montgomery County during the morning hours of February 2nd. With the second round of precipitation, storm total snowfall ranged from 6 to 8 inches.