Heavy Snow in Missouri, January 19 to 20, 2011

Name: Heavy Snow in Missouri, January 19 to 20, 2011
Start: 2011-01-19T20:00
End: 2011-01-20T11:00
Location: Missouri

January 19 to 20, 2011 · NWS LSX · 14 events in 14 counties and zones

A band of heavy snow fell from Central to Eastern Missouri on the 19th and 20th. From 9 to 11 inches fell on parts of Boone and Osage counties and in St.

Where it happened

Every event with a place to put it; 14 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 14

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LSX wrote it up.

A band of heavy snow fell from Central to Eastern Missouri on the 19th and 20th. From 9 to 11 inches fell on parts of Boone and Osage counties and in St. Charles and St. Louis counties. Other areas surrounding this band picked up from 6 to 9 inches.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before the first event at Jan 19, 5:50 PM CST, 2 hours 10 minutes earlier.

Area forecast discussion, Jan 19, 5:50 PM CST, 2 hours 10 minutes before

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Hazardous weather outlook, Jan 19, 3:40 PM CST, 4 hours 20 minutes before

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In the hours before

Local storm report, Jan 19, 7:35 PM CST, 25 minutes before

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Local storm report, Jan 19, 7:36 PM CST, 24 minutes before

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Local storm report, Jan 19, 7:46 PM CST, 14 minutes before

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Local storm report, Jan 19, 7:49 PM CST, 11 minutes before

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Local storm report, Jan 19, 7:50 PM CST, 10 minutes before

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Local storm report, Jan 19, 7:58 PM CST, 2 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

14 heavy snow. Local standard time, as filed.

Heavy Snow, Audrain

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Audrain forecast zone
Reported by: COOP Observer
Coordinates: 39.216, -91.842 (the zone’s center; the record gives no point)

Heavy Snow, Boone

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Boone forecast zone
Reported by: COOP Observer
Coordinates: 38.991, -92.310 (the zone’s center; the record gives no point)

Heavy Snow, Callaway

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Callaway forecast zone
Reported by: COOP Observer
Coordinates: 38.836, -91.926 (the zone’s center; the record gives no point)

Heavy Snow, Cole

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Cole forecast zone
Reported by: COOP Observer
Coordinates: 38.505, -92.282 (the zone’s center; the record gives no point)

Heavy Snow, Moniteau

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Moniteau forecast zone
Reported by: COOP Observer
Coordinates: 38.633, -92.583 (the zone’s center; the record gives no point)

Heavy Snow, Osage

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Osage forecast zone
Reported by: COOP Observer
Coordinates: 38.460, -91.862 (the zone’s center; the record gives no point)

Heavy Snow, Montgomery

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Montgomery forecast zone
Reported by: COOP Observer
Coordinates: 38.942, -91.470 (the zone’s center; the record gives no point)

Heavy Snow, Gasconade

When: January 19, 8:00 PM CST to January 20, 10:00 AM CST
Where: Gasconade forecast zone
Reported by: COOP Observer
Coordinates: 38.441, -91.508 (the zone’s center; the record gives no point)

Heavy Snow, Lincoln

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: Lincoln forecast zone
Reported by: COOP Observer
Coordinates: 39.058, -90.960 (the zone’s center; the record gives no point)

Heavy Snow, Warren

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: Warren forecast zone
Reported by: COOP Observer
Coordinates: 38.765, -91.161 (the zone’s center; the record gives no point)

Heavy Snow, Franklin

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: Franklin forecast zone
Reported by: COOP Observer
Coordinates: 38.411, -91.075 (the zone’s center; the record gives no point)

Heavy Snow, St. Charles

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: St. Charles forecast zone
Reported by: COOP Observer
Coordinates: 38.782, -90.675 (the zone’s center; the record gives no point)

Heavy Snow, St. Louis

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: St. Louis forecast zone
Reported by: COOP Observer
Coordinates: 38.641, -90.443 (the zone’s center; the record gives no point)

Heavy Snow, St. Louis (C)

When: January 19, 11:00 PM CST to January 20, 11:00 AM CST
Where: St. Louis (C) forecast zone
Reported by: COOP Observer
Coordinates: 38.627, -90.198 (the zone’s center; the record gives no point)

What these are

Heavy Snow: Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Missouri in 2011 Every state in 2011 This day in weather history Warnings in Missouri, January 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 289937, 289938, 289939, 289940, 289941, 289942, 289943, 289944, 289945, 289946, 289947, 289948, 289949, 289950.