Alert archive / Missouri / Wind Chill Warnings in 2022

Wind Chill Warning 1, NWS St. Louis, MO

December 21, 202229 counties in Missouri; 17 counties in Illinois

NWS St. Louis, MO issued this wind chill warning at Dec 21, 2022, 3:30 AM CST for 29 counties in Missouri; 17 counties in Illinois. It took effect at Dec 22, 2022, 12:00 PM CST. It was in force for 39 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 21, 2022, 3:30 AM CST (09:30 UTC)
In effect from
Dec 22, 2022, 12:00 PM CST
Expired
Dec 24, 2022, 2:57 AM CST
In force
39 hr
Issued by
NWS St. Louis, MO
All 46 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 09:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 22, 12:08 PM CSTSNOW 1.51 W Quincy, IL1.5 INCHES AT WGEM STUDIOS IN QUINCY.
Dec 22, 1:33 PM CSTSNOW 1.12 Wsw Weldon Spring, MO1.1 INCHES AT NWS ST. LOUIS. CONTINUES TO SNOW LIGHTLY.
Dec 22, 1:53 PM CSTSNOW 1Scott Afb, ILSTILL SNOWING AT THE TIME OF OBSERVATION. MEASUREMENT DIFFICULT DUE TO BLOWING/DRIFTING SNOW.
Dec 22, 1:55 PM CSTSNOW 1Troy, MOONE INCH OR LESS ACROSS TROY, MO.
Dec 22, 2:00 PM CSTSNOW 1.5Quincy, IL1.5 INCHES AT WGEM STUDIOS IN QUINCY. SNOW IS VERY DIFFICULT TO MEASURE.
Dec 22, 3:00 PM CSTNON-TSTM WND GST 392 Ssw Weldon Spring, MOMESONET STATION MO032 MO I-64 AT THE BOONE BRIDGE.
Dec 22, 3:30 PM CSTSNOW 1.91 Wnw Ashland, MOSTORM TOTAL.
Dec 22, 4:30 PM CSTSNOW 21 Ssw Scott Afb, ILACCUMULATING SNOW STILL FALLING.
Dec 22, 4:52 PM CSTSNOW 1.53 N Union, MOLIGHT SNOW STILL FALLING.
Dec 22, 5:38 PM CSTSNOW 2.2Saint Peters, MOSTORM TOTAL, AVERAGE OF SEVERAL MEASUREMENTS.
Dec 22, 6:00 PM CSTSNOW 1.81 Nnw Woodson Terrace, MOSTORM TOTAL FROM LAMBERT INTERNATIONAL AIRPORT.
Dec 22, 6:00 PM CSTSNOW 1.84 Nne Ashland, MOSTORM TOTAL FROM COLUMBIA REGIONAL AIRPORT.
Dec 22, 6:28 PM CSTNON-TSTM WND GST 37Coalton, ILMESONET STATION UP452 COALTON (UPR).
Dec 22, 6:29 PM CSTNON-TSTM WND GST 403 Ne Jefferson City, MOASOS STATION KJEF JEFFERSON CITY.
Dec 22, 6:33 PM CSTSNOW 21 Wnw Swansea, ILPUBLIC REPORT, STORM TOTAL.
Dec 22, 6:45 PM CSTSNOW 1.5Ballwin, MOSTORM TOTAL.
Dec 22, 6:49 PM CSTNON-TSTM WND GST 394 Ne Ashland, MOASOS STATION KCOU COLUMBIA.
Dec 22, 6:57 PM CSTNON-TSTM WND GST 451 E Cahokia, ILASOS STATION KCPS ST LOUIS DOWNTOWN-PARKS AIRPORT.
Dec 22, 7:13 PM CSTNON-TSTM WND GST 404 Sw Columbus, ILASOS STATION KUIN QUINCY REGIONAL AIRPORT-BALDWIN FIELD.
Dec 22, 7:15 PM CSTNON-TSTM WND GST 361 Nne Sullivan, MOAWOS STATION KUUV 1 NNE SULLIVAN.
Dec 22, 7:15 PM CSTNON-TSTM WND GST 411 Sse Centralia, ILMESONET STATION EW6320 CENTRALIA.
Dec 22, 7:20 PM CSTNON-TSTM WND GST 381 Sse Saint Paul, MOMESONET STATION CW3556 OFALLON.
Dec 22, 7:35 PM CSTNON-TSTM WND GST 424 Nnw Orchard Farms, MOMESONET STATION DW8404 ORCHARD FARM.
Dec 22, 7:40 PM CSTNON-TSTM WND GST 412 Sse Shafter, ILAWOS STATION VLA9 1 SE SHAFTER.
Dec 22, 7:44 PM CSTNON-TSTM WND GST 371 Sse Farmington, MOAWOS STATION KFAM FARMINGTON.
Dec 22, 7:46 PM CSTSNOW 2.51 N Granite City, ILSTORM TOTAL RELAYED VIA FACEBOOK.
Dec 22, 7:47 PM CSTSNOW 3.11 Ssw Scott Afb, ILSTORM TOTAL FROM SCOTT AIR FORCE BASE.
Dec 22, 7:49 PM CSTNON-TSTM WND GST 382 Sw Shipman, ILMESONET STATION UR727 SHPMA1.
Dec 22, 7:49 PM CSTSNOW 1.92 Wsw Weldon Spring, MOSTORM TOTAL FROM NWS ST. LOUIS.
Dec 22, 7:50 PM CSTNON-TSTM WND GST 391 Sse Bethalto, ILAWOS STATION KALN ST LOUIS REGIONAL AIRPORT.
Dec 22, 7:54 PM CSTEXTR WIND CHILL -314 Ne Ashland, MOASOS STATION KCOU COLUMBIA.
Dec 22, 7:54 PM CSTNON-TSTM WND GST 514 N Orchard Farms, MOASOS STATION KSET ST. CHARLES.
Dec 22, 8:04 PM CSTNON-TSTM WND GST 461 Se Scott Afb, ILAWOS STATION KBLV SCOTT AIR FORCE BASE.
Dec 22, 8:15 PM CSTEXTR WIND CHILL -342 Ese Vandiver, MOAWOS STATION KMYJ MEXICO.
Dec 22, 8:24 PM CSTNON-TSTM WND GST 36Du Bois, ILMESONET STATION DW4351 DUBOIS.
Dec 22, 8:25 PM CSTSNOW 1Carlinville, ILSTORM TOTAL.
Dec 22, 8:30 PM CSTNON-TSTM WND GST 382 Sw Olivette, MOMESONET STATION DW6068 LADUE.
Dec 22, 8:35 PM CSTNON-TSTM WND GST 402 W Mount Sterling, ILAWOS STATION KI63 MT STERLING MUNICIPAL AIRPORT.
Dec 22, 8:35 PM CSTNON-TSTM WND GST 463 Wnw Clarkson Valley, MOASOS STATION KSUS SPIRIT OF ST LOUIS AIRPORT.
Dec 22, 8:50 PM CSTNON-TSTM WND GST 403 Nnw Millstadt, ILMESONET STATION AU250 MILLSTADT.
Dec 22, 8:51 PM CSTSNOW 2.51 Nnw Farmington, MOSTORM TOTAL.
Dec 22, 9:04 PM CSTEXTR WIND CHILL -321 Ne Carpenter, ILMESONET STATION UP318 1.2 NE CARPENTER (UPR).
Dec 22, 9:10 PM CSTEXTR WIND CHILL -371 Ene Novelty, MOMESONET STATION MOA08 1 ENE NOVELTY.
Dec 22, 9:15 PM CSTEXTR WIND CHILL -392 W Mount Sterling, ILAWOS STATION KI63 MT STERLING MUNICIPAL AIRPORT.
Dec 22, 9:20 PM CSTEXTR WIND CHILL -342 Wsw Williamsburg, MOMESONET STATION MOA14 1 WSW WILLIAMSBURG.
Dec 22, 9:29 PM CSTEXTR WIND CHILL -382 Ssw Wainwright, MOMESONET STATION UP895 2.5 S WAINWRIGHT (UPR).
Dec 22, 9:31 PM CSTNON-TSTM WND GST 35Chester, ILMESONET STATION FW7278 CHESTER.
Dec 22, 9:39 PM CSTNON-TSTM WND GST 402 S Saint Peter, ILMESONET STATION UP811 1.9 S SAINT PETER (UPR).
Dec 22, 10:15 PM CSTEXTR WIND CHILL -322 W Cuba, MOMESONET STATION FW8008 CUBA.
Dec 22, 10:15 PM CSTEXTR WIND CHILL -324 Wnw Hannibal, MOAWOS STATION KHAE HANNIBAL.
Dec 22, 10:15 PM CSTNON-TSTM WND GST 351 Ese Sparta, ILAWOS STATION KSAR SPARTA.
Dec 22, 10:50 PM CSTEXTR WIND CHILL -323 Nnw Millstadt, ILMESONET STATION AU250 MILLSTADT.
Dec 22, 10:53 PM CSTEXTR WIND CHILL -293 Ne Jefferson City, MOASOS STATION KJEF JEFFERSON CITY.
Dec 22, 10:54 PM CSTEXTR WIND CHILL -313 Wnw Clarkson Valley, MOASOS STATION KSUS SPIRIT OF ST LOUIS AIRPORT.
Dec 22, 10:55 PM CSTEXTR WIND CHILL -312 S Dutzow, MOAWOS STATION KFYG WASHINGTON REGIONAL AIRPORT.
Dec 22, 10:56 PM CSTEXTR WIND CHILL -321 Sse Farmington, MOAWOS STATION KFAM FARMINGTON.
Dec 22, 10:56 PM CSTNON-TSTM WND GST 462 Nnw Woodson Terrace, MOASOS STATION KSTL ST LOUIS LAMBERT INTERNATIONAL AIRPORT.
Dec 22, 11:00 PM CSTEXTR WIND CHILL -343 Wnw Granville, MOMESONET STATION AU993 HOLLIDAY.
Dec 22, 11:00 PM CSTEXTR WIND CHILL -292 Ssw Red Bud, ILMESONET STATION 7189D 2 SSW RED BUD.
Dec 22, 11:10 PM CSTEXTR WIND CHILL -343 E Fishhook, ILMESONET STATION ILORR PERRY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.5 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2022-12-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2022-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
752 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

134 
WWUS43 KLSX 210930
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
330 AM CST Wed Dec 21 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-220030-
/O.UPG.KLSX.WS.A.0004.221222T1200Z-221223T0600Z/
/O.NEW.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.UPG.KLSX.WC.A.0001.221222T2100Z-221224T1800Z/
/O.NEW.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-
Including the cities of Bowling Green, Pittsfield, Litchfield,
Hannibal, Mount Sterling, Fulton, Columbia, Mexico, and Quincy
330 AM CST Wed Dec 21 2022

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT CST 
THURSDAY NIGHT...
...WIND CHILL WARNING IN EFFECT FROM 3 PM THURSDAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations between 2 and 4 inches. Winds gusting as high 
  as 45 mph. For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 3 PM 
  Thursday to Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ049-059-061>065-072>075-084-
085-099-220030-
/O.UPG.KLSX.WS.A.0004.221222T1200Z-221223T0600Z/
/O.NEW.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.UPG.KLSX.WC.A.0001.221223T0000Z-221223T1800Z/
/O.NEW.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Osage MO-Gasconade MO-Saint
Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-
Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Sparta, Centralia, Farmington,
Belleville, Salem, Edwardsville, Vandalia, Cahokia, Washington,
Sullivan, Union, Saint Louis, Saint Charles, Alton, and Chester
330 AM CST Wed Dec 21 2022

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT CST 
THURSDAY NIGHT...
...WIND CHILL WARNING IN EFFECT FROM 6 PM THURSDAY TO NOON CST 
FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations between 2 and 4 inches. Winds gusting as high 
  as 45 mph. For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 30 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 6 PM 
  Thursday to Noon CST Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ047-048-220030-
/O.UPG.KLSX.WS.A.0004.221222T1200Z-221223T0600Z/
/O.NEW.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.UPG.KLSX.WC.A.0001.221223T0000Z-221223T1800Z/
/O.NEW.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Moniteau MO-Cole MO-
Including the cities of Jefferson City
330 AM CST Wed Dec 21 2022

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT CST 
THURSDAY NIGHT...
...WIND CHILL WARNING IN EFFECT FROM 6 PM THURSDAY TO NOON CST 
FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations between 2 and 4 inches. Winds gusting as high 
  as 40 mph. For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 30 below zero.

* WHERE...Cole MO and Moniteau MO Counties.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 6 PM 
  Thursday to Noon CST Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ060-220030-
/O.UPG.KLSX.WS.A.0004.221222T1200Z-221223T0600Z/
/O.NEW.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.UPG.KLSX.WC.A.0001.221222T2100Z-221224T1800Z/
/O.NEW.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Warren MO-
330 AM CST Wed Dec 21 2022

...WINTER STORM WARNING IN EFFECT FROM 6 AM THURSDAY TO MIDNIGHT CST 
THURSDAY NIGHT...
...WIND CHILL WARNING IN EFFECT FROM 3 PM THURSDAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations between 2 and 4 inches. Winds gusting as high 
  as 45 mph. For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 30 below zero.

* WHERE...Warren MO County.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 3 PM 
  Thursday to Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

BSH
11 follow-up statements
890 
WWUS43 KLSX 212031
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
231 PM CST Wed Dec 21 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-221145-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-
Including the cities of Litchfield, Bowling Green, Columbia,
Quincy, Hannibal, Fulton, Mexico, Mount Sterling, and Pittsfield
231 PM CST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 
MIDNIGHT CST THURSDAY NIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 3 PM THURSDAY TO NOON 
CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations up to two inches. Winds gusting as high as 40 
  mph. For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 3 PM 
  Thursday to Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ049-059-061>065-072>075-084-
085-099-221145-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Osage MO-Gasconade MO-Saint
Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-
Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, Saint Charles, Vandalia,
Belleville, Washington, Salem, Alton, Edwardsville, Union,
Sullivan, Saint Louis, Centralia, Farmington, and Cahokia
231 PM CST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 
MIDNIGHT CST THURSDAY NIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO NOON 
CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations between 1 and 3 inches. Winds gusting as high 
  as 40 mph. For the Wind Chill Warning, dangerously cold wind 
  chills expected. Wind chills as low as 30 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 6 PM 
  Thursday to Noon CST Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ047-048-221145-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Moniteau MO-Cole MO-
Including the cities of Jefferson City
231 PM CST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 
MIDNIGHT CST THURSDAY NIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO NOON 
CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations up to two inches. Winds gusting as high as 40 
  mph. For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 30 below zero.

* WHERE...Cole MO and Moniteau MO Counties.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 6 PM 
  Thursday to Noon CST Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ060-221145-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Warren MO-
231 PM CST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 
MIDNIGHT CST THURSDAY NIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 3 PM THURSDAY TO NOON 
CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total 
  snow accumulations up to two inches. Winds gusting as high as 40 
  mph. For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 30 below zero.

* WHERE...Warren MO County.

* WHEN...For the Winter Storm Warning, from 6 AM Thursday to 
  Midnight CST Thursday Night. For the Wind Chill Warning, from 3 PM 
  Thursday to Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Gosselin
365 
WWUS43 KLSX 220922
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
322 AM CST Thu Dec 22 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-230030-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-
Including the cities of Litchfield, Columbia, Hannibal, Mexico,
Mount Sterling, Quincy, Fulton, Pittsfield, and Bowling Green
322 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 
NOON CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy mixed precipitation 
  expected. Total snow accumulations between 1 and 3 inches. Winds 
  gusting as high as 45 mph. For the Wind Chill Warning, dangerously 
  cold wind chills expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 3 PM this afternoon to Noon CST 
  Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. In Illinois, the latest road 
conditions can be obtained at www.gettingaroundillinois.com. In 
Missouri, the latest road conditions can be obtained at 
traveler.modot.org/map or by calling 1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ049-059-061>065-072>075-084-
085-099-230030-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Osage MO-Gasconade MO-Saint
Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-
Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Union, Sullivan, Saint Louis, Cahokia,
Chester, Sparta, Alton, Edwardsville, Centralia, Salem, Saint
Charles, Washington, Farmington, Belleville, and Vandalia
322 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy mixed precipitation 
  expected. Total snow accumulations between 1 and 3 inches. Winds 
  gusting as high as 45 mph. For the Wind Chill Warning, dangerously 
  cold wind chills expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. In Illinois, the latest road 
conditions can be obtained at www.gettingaroundillinois.com. In 
Missouri, the latest road conditions can be obtained at 
traveler.modot.org/map or by calling 1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ047-048-230030-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Moniteau MO-Cole MO-
Including the cities of Jefferson City
322 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy mixed precipitation 
  expected. Total snow accumulations between 2 and 4 inches. Winds 
  gusting as high as 40 mph. For the Wind Chill Warning, dangerously 
  cold wind chills expected. Wind chills as low as 35 below zero.

* WHERE...Cole MO and Moniteau MO Counties.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. In Illinois, the latest road 
conditions can be obtained at www.gettingaroundillinois.com. In 
Missouri, the latest road conditions can be obtained at 
traveler.modot.org/map or by calling 1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ060-230030-
/O.CON.KLSX.WS.W.0005.221222T1200Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221222T2100Z-221224T1800Z/
Warren MO-
322 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 
NOON CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy mixed precipitation 
  expected. Total snow accumulations up to two inches. Winds gusting 
  as high as 45 mph. For the Wind Chill Warning, dangerously cold 
  wind chills expected. Wind chills as low as 35 below zero.

* WHERE...Warren MO County.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 3 PM this afternoon to Noon CST 
  Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. In Illinois, the latest road 
conditions can be obtained at www.gettingaroundillinois.com. In 
Missouri, the latest road conditions can be obtained at 
traveler.modot.org/map or by calling 1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

BSH
292 
WWUS43 KLSX 221432
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
832 AM CST Thu Dec 22 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-230545-
/O.EXT.KLSX.WC.W.0001.221222T1800Z-221224T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-
Including the cities of Mount Sterling, Quincy, Columbia, Fulton,
Litchfield, Pittsfield, Hannibal, Mexico, and Bowling Green
832 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING NOW IN EFFECT FROM NOON TODAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations between 1 and 3 inches. Winds gusting as high as 45 
  mph. For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from Noon today to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes. Visibilities may drop below 1/4 mile due to falling 
  and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

&&

$$

MOZ060-230545-
/O.EXT.KLSX.WC.W.0001.221222T1800Z-221224T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
Warren MO-
832 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING NOW IN EFFECT FROM NOON TODAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to two inches. Winds gusting as high as 45 mph. 
  For the Wind Chill Warning, dangerously cold wind chills expected. 
  Wind chills as low as 35 below zero.

* WHERE...Warren MO County.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from Noon today to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Thursday morning and evening commutes. Gusty 
  winds could bring down tree branches. The dangerously cold wind 
  chills could cause frostbite on exposed skin in as little as 10 
  minutes. Visibilities may drop below 1/4 mile due to falling and 
  blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ049-059-061>065-072>075-084-
085-099-230545-
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Osage MO-Gasconade MO-Saint
Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-
Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Belleville, Union, Edwardsville, Cahokia,
Alton, Saint Charles, Chester, Centralia, Sparta, Washington,
Saint Louis, Vandalia, Sullivan, Farmington, and Salem
832 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations between 1 and 3 inches. Winds gusting as high as 45 
  mph. For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  Gusty winds could bring down tree branches. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ047-048-230545-
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Moniteau MO-Cole MO-
Including the cities of Jefferson City
832 AM CST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST 
TONIGHT...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to two inches. Winds gusting as high as 40 mph. 
  For the Wind Chill Warning, dangerously cold wind chills expected. 
  Wind chills as low as 35 below zero.

* WHERE...Cole MO and Moniteau MO Counties.

* WHEN...For the Winter Storm Warning, until Midnight CST tonight. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday morning and evening commutes. 
  The dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Gosselin
771 
WWUS43 KLSX 222055
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
255 PM CST Thu Dec 22 2022

MOZ047-231200-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
/O.NEW.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Moniteau MO-
255 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...
...WIND CHILL ADVISORY IN EFFECT FROM NOON FRIDAY TO NOON CST 
SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Moniteau MO County.

* WHEN...For the Wind Chill Warning, from 6 PM this evening to Noon 
  CST Friday. For the Wind Chill Advisory, from Noon Friday to Noon 
  CST Saturday.

* IMPACTS...The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. The dangerously cold wind 
  chills could cause frostbite on exposed skin in as little as 10 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ095-MOZ018-019-026-027-034-035-041-042-231200-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0600Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Adams IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Boone MO-Audrain MO-
Including the cities of Hannibal, Mexico, Columbia, and Quincy
255 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of west central Illinois. Portions of central and 
  northeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. The dangerously cold wind 
  chills could cause frostbite on exposed skin in as little as 10 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ049-059-061>065-072>075-084-
085-099-231200-
/O.NEW.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
/O.EXT.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Osage MO-Gasconade MO-Saint
Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-
Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Belleville, Union, Edwardsville, Cahokia,
Alton, Saint Charles, Chester, Centralia, Sparta, Washington,
Saint Louis, Vandalia, Sullivan, Farmington, and Salem
255 PM CST Thu Dec 22 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...
...WIND CHILL ADVISORY IN EFFECT FROM NOON FRIDAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to one inch. Winds gusting as high as 45 mph. For 
  the Wind Chill Warning, dangerously cold wind chills expected. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Winter Storm Warning, until 9 PM CST this evening. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday. For the Wind Chill Advisory, from Noon Friday to Noon CST 
  Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes. Gusty winds could bring down tree branches. The 
  dangerously cold wind chills could cause frostbite on exposed skin 
  in as little as 10 minutes. Visibilities may drop below 1/4 mile 
  due to falling and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ048-231200-
/O.NEW.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
/O.EXT.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
/O.CON.KLSX.WC.W.0001.221223T0000Z-221223T1800Z/
Cole MO-
Including the cities of Jefferson City
255 PM CST Thu Dec 22 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 PM CST THIS EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 
NOON CST FRIDAY...
...WIND CHILL ADVISORY IN EFFECT FROM NOON FRIDAY TO NOON CST 
SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to one inch. Winds gusting as high as 40 mph. For 
  the Wind Chill Warning, dangerously cold wind chills expected. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 20 below 
  zero.

* WHERE...Cole MO County.

* WHEN...For the Winter Storm Warning, until 7 PM CST this evening. 
  For the Wind Chill Warning, from 6 PM this evening to Noon CST 
  Friday. For the Wind Chill Advisory, from Noon Friday to Noon CST 
  Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes. The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes. Visibilities may drop 
  below 1/4 mile due to falling and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ058>060-096>099-MOZ036-050>052-231200-
/O.EXT.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Pike MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Mount Sterling, Fulton, Litchfield,
Pittsfield, and Bowling Green
255 PM CST Thu Dec 22 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 PM CST THIS EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to one inch. Winds gusting as high as 45 mph. For 
  the Wind Chill Warning, dangerously cold wind chills. Wind chills 
  as low as 35 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...For the Winter Storm Warning, until 7 PM CST this evening. 
  For the Wind Chill Warning, until Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes. Gusty winds could bring down tree branches. The 
  dangerously cold wind chills could cause frostbite on exposed skin 
  in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ060-231200-
/O.EXT.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Warren MO-
255 PM CST Thu Dec 22 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 PM CST THIS EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow 
  accumulations up to one inch. Winds gusting as high as 40 mph. For 
  the Wind Chill Warning, dangerously cold wind chills. Wind chills 
  as low as 35 below zero.

* WHERE...Warren MO County.

* WHEN...For the Winter Storm Warning, until 9 PM CST this evening. 
  For the Wind Chill Warning, until Noon CST Saturday.

* IMPACTS...Visibilities may drop below 1/4 mile due to falling and 
  blowing snow. Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes. The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Gosselin
575 
WWUS43 KLSX 222241
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
441 PM CST Thu Dec 22 2022

MOZ048-231345-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
/O.EXT.KLSX.WC.W.0001.221222T2241Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Cole MO-
Including the cities of Jefferson City
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 20 
  below zero.

* WHERE...Cole MO County.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MOZ049-059-061-062-064-072-231345-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.EXT.KLSX.WC.W.0001.221222T2241Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Osage MO-Gasconade MO-Saint Charles MO-Franklin MO-Saint Louis
City MO-Crawford MO-
Including the cities of Union, Sullivan, Washington, Saint
Charles, and Saint Louis
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills 
  expected. Wind chills as low as 35 below zero. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Portions of central and east central Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ058-096>099-MOZ036-050>052-231345-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Pike MO-Callaway
MO-Montgomery MO-Lincoln MO-
Including the cities of Mount Sterling, Fulton, Pittsfield, and
Bowling Green
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of southwest and west central Illinois. Portions 
  of central, east central, and northeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MOZ060-231345-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Warren MO-
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Warren MO County.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ063-065-073>075-084-085-099-
231345-
/O.EXT.KLSX.WC.W.0001.221222T2241Z-221223T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Saint Louis MO-Jefferson MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
Including the cities of Belleville, Vandalia, Chester, Sparta,
Cahokia, Alton, Salem, Farmington, Edwardsville, and Centralia
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS 
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Winter Storm Warning, 
  heavy snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 45 mph. For the Wind Chill Advisory, very cold 
  wind chills expected. Wind chills as low as 25 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of east central and southeast Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Winter Storm Warning, until 9 PM CST this evening. For the Wind 
  Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes. Gusty winds could bring down tree branches. The 
  dangerously cold wind chills could cause frostbite on exposed skin 
  in as little as 10 minutes. Visibilities may drop below 1/4 mile 
  due to falling and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MOZ047-231345-
/O.EXT.KLSX.WC.W.0001.221222T2241Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Moniteau MO-
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Moniteau MO County.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ059-060-231345-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
Macoupin IL-Montgomery IL-
Including the cities of Litchfield
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS 
EVENING...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Winter Storm Warning, 
  heavy snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 45 mph.

* WHERE...Montgomery IL and Macoupin IL Counties.

* WHEN...For the Wind Chill Warning, until Noon CST Saturday. For 
  the Winter Storm Warning, until 7 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches. The dangerously cold wind chills could 
  cause frostbite on exposed skin in as little as 10 minutes. 
  Visibilities may drop below 1/4 mile due to falling and blowing 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. The latest road 
conditions can be obtained at www.gettingaroundillinois.com.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

&&

$$

ILZ095-MOZ018-019-026-027-034-035-041-042-231345-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Adams IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Boone MO-Audrain MO-
Including the cities of Mexico, Hannibal, Columbia, and Quincy
441 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of west central Illinois. Portions of central and 
  northeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Kimble
364 
WWUS43 KLSX 222303
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
503 PM CST Thu Dec 22 2022

MOZ063-065-073-231415-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Saint Louis MO-Jefferson MO-Washington MO-
503 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 20 below 
  zero.

* WHERE...Jefferson MO, Saint Louis MO, and Washington MO Counties.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ074-075-084-085-099-231415-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Belleville, Vandalia, Chester, Sparta,
Cahokia, Alton, Salem, Farmington, Edwardsville, and Centralia
503 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS 
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Winter Storm Warning, 
  heavy snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 45 mph. For the Wind Chill Advisory, very cold 
  wind chills expected. Wind chills as low as 25 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of southeast Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Winter Storm Warning, until 9 PM CST this evening. For the Wind 
  Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches. The dangerously cold wind chills could 
  cause frostbite on exposed skin in as little as 10 minutes. 
  Visibilities may drop below 1/4 mile due to falling and blowing 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. In Illinois, the 
latest road conditions can be obtained at 
www.gettingaroundillinois.com. In Missouri, the latest road 
conditions can be obtained at traveler.modot.org/map or by calling 
1-888-275-6636.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ059-060-231415-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
Macoupin IL-Montgomery IL-
Including the cities of Litchfield
503 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS 
EVENING...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Winter Storm Warning, 
  heavy snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 45 mph.

* WHERE...Montgomery IL and Macoupin IL Counties.

* WHEN...For the Wind Chill Warning, until Noon CST Saturday. For 
  the Winter Storm Warning, until 7 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches. The dangerously cold wind chills could 
  cause frostbite on exposed skin in as little as 10 minutes. 
  Visibilities may drop below 1/4 mile due to falling and blowing 
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. The latest road 
conditions can be obtained at www.gettingaroundillinois.com.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

&&

$$

MOZ047>049-059-061-062-064-072-231415-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Moniteau MO-Cole MO-Osage MO-Gasconade MO-Saint Charles MO-
Franklin MO-Saint Louis City MO-Crawford MO-
Including the cities of Union, Sullivan, Washington, Saint
Charles, Jefferson City, and Saint Louis
503 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of central and east central Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ058-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-231415-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-
Including the cities of Fulton, Pittsfield, Mount Sterling,
Columbia, Bowling Green, Mexico, Hannibal, and Quincy
503 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of southwest and west central Illinois. Portions 
  of central, east central, and northeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Kimble
159 
WWUS43 KLSX 230048
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
648 PM CST Thu Dec 22 2022

ILZ100>102-MOZ074-075-084-085-099-231600-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Madison IL-Saint Clair-Monroe IL-Saint Francois MO-Sainte
Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Alton, Cahokia, Belleville, Edwardsville,
and Farmington
648 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of southwest Illinois. Portions of southeast 
  Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ059-060-231600-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0100Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Macoupin IL-Montgomery IL-
Including the cities of Litchfield
648 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Montgomery IL and Macoupin IL Counties.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-231600-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Including the cities of Vandalia, Chester, Centralia, Salem, and
Sparta
648 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS 
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Winter Storm Warning, 
  heavy snow. Additional snow accumulations up to one inch. Winds 
  gusting as high as 40 mph. For the Wind Chill Advisory, very cold 
  wind chills expected. Wind chills as low as 25 below zero.

* WHERE...Portions of south central and southwest Illinois.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Winter Storm Warning, until 9 PM CST this evening. For the Wind 
  Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could significantly reduce visibility. The dangerously cold wind 
  chills could cause frostbite on exposed skin in as little as 10 
  minutes. Visibilities may drop below 1/4 mile due to falling and 
  blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

The rapid accumulation of snow will make travel extremely difficult, 
if not impossible. If travel is necessary, be sure to exercise 
extreme caution. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. The latest road 
conditions can be obtained at www.gettingaroundillinois.com.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

MOZ047>049-059-061>065-072-073-231600-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Moniteau MO-Cole MO-Osage MO-Gasconade MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Crawford MO-Washington MO-
Including the cities of Washington, Sullivan, Union, Jefferson
City, Saint Charles, and Saint Louis
648 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 20 below 
  zero.

* WHERE...Portions of central and east central Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ058-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-231600-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-
Including the cities of Hannibal, Quincy, Mount Sterling, Fulton,
Columbia, Pittsfield, Mexico, and Bowling Green
648 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of southwest and west central Illinois. Portions 
  of central, east central, and northeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MG
295 
WWUS43 KLSX 230249
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
849 PM CST Thu Dec 22 2022

ILZ064-065-069-070-074-079-231800-
/O.CAN.KLSX.WS.W.0005.000000T0000Z-221223T0300Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Including the cities of Vandalia, Chester, Centralia, Salem, and
Sparta
849 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of south central and southwest Illinois.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The hazardous conditions could impact the Friday morning 
  and evening commutes. The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ100>102-MOZ047>049-059-061>065-072>075-084-085-099-231800-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Madison IL-Saint Clair-Monroe IL-Moniteau MO-Cole MO-Osage MO-
Gasconade MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint
Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint
Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Alton, Washington, Cahokia, Union,
Sullivan, Belleville, Jefferson City, Edwardsville, Farmington,
Saint Charles, and Saint Louis
849 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO NOON 
CST SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of southwest Illinois. Portions of central, east 
  central, and southeast Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST Friday. For the 
  Wind Chill Advisory, from Noon Friday to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-
231800-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-Warren MO-
Including the cities of Hannibal, Quincy, Mount Sterling,
Litchfield, Fulton, Columbia, Pittsfield, Mexico, and Bowling
Green
849 PM CST Thu Dec 22 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 40 
  below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

MG
069 
WWUS43 KLSX 230900
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
300 AM CST Fri Dec 23 2022

ILZ064-065-069-070-074-079-100>102-MOZ047>049-059-061>065-072>075-
084-085-099-240000-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLSX.WC.Y.0003.221223T1800Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Moniteau MO-Cole MO-Osage MO-
Gasconade MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint
Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint
Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Union, Salem, Washington, Chester, Alton,
Saint Charles, Saint Louis, Vandalia, Edwardsville, Belleville,
Sullivan, Sparta, Jefferson City, Cahokia, Farmington, and
Centralia
300 AM CST Fri Dec 23 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO NOON CST 
SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills. 
  Wind chills as low as 35 below zero. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...For the Wind Chill Warning, until Noon CST today. For the 
  Wind Chill Advisory, from Noon today to Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-
240000-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-Warren MO-
Including the cities of Litchfield, Bowling Green, Quincy,
Pittsfield, Mexico, Fulton, Hannibal, Columbia, and Mount
Sterling
300 AM CST Fri Dec 23 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

Pfahler
849 
WWUS43 KLSX 232047
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
247 PM CST Fri Dec 23 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-
241200-
/O.CON.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-Warren MO-
Including the cities of Mount Sterling, Fulton, Mexico, Quincy,
Pittsfield, Bowling Green, Hannibal, Columbia, and Litchfield
247 PM CST Fri Dec 23 2022

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 25 
  below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you 
wear appropriate clothing, a hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ047>049-059-061>065-072>075-
084-085-099-241200-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Moniteau MO-Cole MO-Osage MO-
Gasconade MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint
Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint
Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Washington, Saint Louis,
Sullivan, Farmington, Saint Charles, Union, Jefferson City,
Salem, Belleville, Vandalia, Centralia, Alton, Edwardsville,
Sparta, and Cahokia
247 PM CST Fri Dec 23 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...Until Noon CST Saturday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

Jaja
677 
WWUS43 KLSX 240857
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service St Louis MO
257 AM CST Sat Dec 24 2022

ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-060-
241800-
/O.CAN.KLSX.WC.W.0001.000000T0000Z-221224T1800Z/
/O.EXA.KLSX.WC.Y.0003.000000T0000Z-221224T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe
MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-Warren MO-
Including the cities of Pittsfield, Bowling Green, Columbia,
Quincy, Litchfield, Mexico, Mount Sterling, Hannibal, and Fulton
257 AM CST Sat Dec 24 2022

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills. Wind chills as low as 20 below zero.

* WHERE...Portions of south central, southwest, and west central 
  Illinois. Portions of central, east central, and northeast 
  Missouri.

* WHEN...Until Noon CST today.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

ILZ064-065-069-070-074-079-100>102-MOZ047>049-059-061>065-072>075-
084-085-099-241800-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-221224T1800Z/
Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-
Madison IL-Saint Clair-Monroe IL-Moniteau MO-Cole MO-Osage MO-
Gasconade MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint
Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint
Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Union, Edwardsville, Vandalia,
Belleville, Washington, Farmington, Chester, Sparta, Alton,
Cahokia, Saint Louis, Saint Charles, Sullivan, Centralia,
Jefferson City, and Salem
257 AM CST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Very cold wind chills. Wind chills as low as 15 below zero.

* WHERE...Portions of south central and southwest Illinois. Portions 
  of central, east central, and southeast Missouri.

* WHEN...Until Noon CST today.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

&&

$$

Pfahler

What forecasters said that day

The local office's own words before this wind chill warning went out, 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 this wind chill warning went out at Dec 20, 10:37 PM CST, 4 hours 53 minutes earlier. Its key messages:

  • 1) A very rare combination of accumulating snowfall (generally 2-4") combined with very strong northwest winds (20-30 mph sustained, 40- 50 mph gusts) are expected to yield near-blizzard conditions for a 3- 6 hour period at any given location on Thursday. Travel will be extremely hazardous if not impossible during the height of the falling (and blowing) snow. While snowfall amounts will not be nearly as substantial, peak impacts during that 4-6 hour period of moderate to heavy snowfall may rival those experienced January 5-6, 2014 (in particular when you include the extremely dangerous cold/wind chills). 2) Speaking of wind chills and extreme cold, minimum wind chills Thursday night into Friday morning are forecast to be in the -25 to - 35F range. These numbers would be about 5 degrees warmer than the coldest wind chill values observed January 6th, 2014. Temperature wise, widespread below zero lows are forecast Friday morning and should be the coldest December temperatures seen since December 23, 1989 (though about 10 degrees warmer compared to 1989). (Wednesday Night - Thursday) All remains on track for a strong arctic cold front to move through the bi-state area very late tonight through early afternoon on Thursday. Cannot rule out at least some isolated rain showers ahead of the front with broad low-level warm air advection. Any rain that does occur however looks very brief, but if it were enough to wet the pavement, a flash freeze would occur as temperatures behind the front rapidly drop. The speed of this frontal passage has sped up at least 3 hours compared to 24 hours ago. Along/behind the front, strong low/mid level frontogenesis will combine with increasing ascent on the synoptic scale associated with the amplifying mid/upper level trough. A 3-6 hour period of moderate to potentially heavy snow is expected on Thursday in any given location. The intensity of the snowfall combined with the increasing northwest winds (20-30 mph sustained, 40-50 mph gusts) will combine to cause at least brief periods of time with near- blizzard conditions. Travel during the height of the snowfall will be extremely hazardous, and nearly impassible. Model QPF has continued to converge toward the 0.15-0.30" range across the area, with the latest NBM 25th/75th percentiles almost exclusively within that range. The 50th percentile/median is closer to 0.20-0.25" for most locations and stuck close to those values. It appears the main difference in total QPF amounts is due to the longevity. The deterministic CMC/ECMWF last snow a bit longer (a bit over 6 hours) due to a sharper, negatively tilted midlevel trough that moves through Thursday afternoon into the early evening. The GFS/NAM do not have this feature nearly as strong and limit the duration to about 3-4 hours. At this point, it is too early to tell which solution is right, but we should gain more clarity when this feature is sampled by the North American RAOB network tomorrow (Wednesday) morning. Forecasting the snow-to-liquid ratio (SLR) is just as (if not more) difficult for this upcoming event. Soundings show a deepening dendritic growth zone (DGZ) throughout the event, with the last 1-2 hours potentially seeing DGZ depths of over 10 kft. The crosshair signature (max lift centered in the DGZ) is present in GFS soundings, though it is generally confined to about 2-3 hours or half the time of falling snow. At the end of the snowfall, max lift is actually centered up to around 400 to 500 hPa or above the DGZ. This may tend to favor more plates/columns vs. stellar dendrites and make the very anomalously deep DGZ moot. Another concern is the strong winds fracturing the dendrites. Unfortunately, there is not a ton of research on the role of strong winds/fracturing and SLRs. The prevailing thought here though is that the strong northwesterly near-surface winds will play a role in lowering SLRs. Given all of this information, it seems prudent to lean a bit above climatology (10-12:1), but not too much higher given concerns alluded to above. For this event, a general 13-15:1 cumulative SLR was used. Total snowfall amounts of 2-4" are forecast across the area. A higher magnitude snowfall (isolated 5-6" amounts) is not impossible if the event ends up lasting a bit longer than forecast and SLRs are closer to 15-20:1. However, this does not seem like the most likely scenario at this point. (Thursday Night - Saturday) The story after the falling snow is the extreme cold and the likelihood of some blowing and drifting of snow due to the very strong northwest winds. Low temperatures for most of the area are likely to drop well below zero, with some locations potentially approaching -10F. As alluded to in the key messages above, these values would be the coldest we have seen in our area during the month of December since 1989. Confidence in these temperatures has increased gradually with time as the air mass (originally from Siberia) has begun to shift south/southeast. Morning lows earlier today in northern British Columbia and parts of the Yukon territory in Canada dropped below -50F! While the air mass will obviously modify as it continues its southeastward plunge, these observations are indicative of its strength. Speaking of the strength of the air mass, record high surface pressures may be recorded later this week in Montana. The current lower 48 record is 1064 hPa from Miles City, MT, from December 1983. The below zero temperatures combined with continued northwest winds of 20-30 mph through Friday will yield minimum wind chill values of -25 to -35F Thursday night into Friday morning. Friday will be the coldest daytime temperatures as well with highs only climbing back into the single digits above zero. Mostly cloudy conditions, some areas of blowing snow, and wind chills below zero will make it look and feel even worse. Friday night and Saturday will not be as cold, nor as windy as earlier periods. Lows are forecast to be in the 0 to -5F range, with minimum wind chill values of -15 to -25F. Similar to Thursday night/Friday, coldest values are likely to be in northeast Missouri and west-central Illinois. Saturday's high temperatures are likely to warm up about 10 degrees compared to Friday, though still generally in the teens or 25-30 degrees below normal for the date. (Saturday Night - Next Tuesday) Moderating temperatures are forecast through the end of the Christmas holiday weekend into early next week as GEFS/EPS mean 850- hPa temperatures climb back into the -5 to -10C range. We will have to keep a close eye however on the potential for northwest flow shortwaves. While climatology favors areas further to the north and east, guidance has continued to suggest that one passing through on/around Monday (12/26) that may be far enough southwest to bring parts of our area accumulating snowfall. However, models really tend to struggle pinning down the track/timing of these shortwaves until about 48-72 hours out. At this very early juncture (still 6 days out), slight chance PoPs for light snow were added Sunday night. Temperature wise, readings should get back into the 20s to low 30s early next week. Some areas probably will get back above freezing, with the best chances in southwestern portions of the CWA. Gosselin
Area forecast discussion, Dec 20, 10:37 PM CST, 4 hours 53 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1037 PM CST Tue Dec 20 2022

.SHORT TERM...  (Through Late Wednesday Afternoon)
Issued at 214 PM CST Tue Dec 20 2022

Troughing aloft in southern Canada is responsible for a diffuse cold
front currently moving through the CWA. This front has been largely
unimpactful, serving only to bring low stratus into the area.
Locations in the northern CWA that have experienced cloud cover all
day are noticeably cooler than those that have had exposure to
the sun during peak heating.

The upper level system that will bring accumulating snow to the area
beginning Wednesday night is currently in southwestern Canada. As
the trough amplifies through the western CONUS, it will spur the
development of surface low pressure lee of the Colorado Rockies.
This low will enforce southeasterly winds over the area beginning
Wednesday morning. Warm air advection along these winds will result
in increased cloud cover through the day Wednesday.

Overall, a quiet Wednesday is in store ahead of the impending winter
storm. Southeasterly winds will remain fairly tame, and temperatures
underneath cloud cover will be slightly below average, ranging from
the low 30s to the north and the low 40s to the south.

Jaja

.LONG TERM...  (Wednesday Night through Next Tuesday)
Issued at 214 PM CST Tue Dec 20 2022

.KEY MESSAGES...

1) A very rare combination of accumulating snowfall (generally 2-4")
combined with very strong northwest winds (20-30 mph sustained, 40-
50 mph gusts) are expected to yield near-blizzard conditions for a 3-
6 hour period at any given location on Thursday. Travel will be
extremely hazardous if not impossible during the height of the
falling (and blowing) snow. While snowfall amounts will not be
nearly as substantial, peak impacts during that 4-6 hour period of
moderate to heavy snowfall may rival those experienced January
5-6, 2014 (in particular when you include the extremely dangerous
cold/wind chills).

2) Speaking of wind chills and extreme cold, minimum wind chills
Thursday night into Friday morning are forecast to be in the -25 to -
35F range. These numbers would be about 5 degrees warmer than the
coldest wind chill values observed January 6th, 2014. Temperature
wise, widespread below zero lows are forecast Friday morning and
should be the coldest December temperatures seen since December 23,
1989 (though about 10 degrees warmer compared to 1989).

(Wednesday Night - Thursday)

All remains on track for a strong arctic cold front to move through
the bi-state area very late tonight through early afternoon on
Thursday. Cannot rule out at least some isolated rain showers ahead
of the front with broad low-level warm air advection. Any rain that
does occur however looks very brief, but if it were enough to wet
the pavement, a flash freeze would occur as temperatures behind
the front rapidly drop. The speed of this frontal passage has sped
up at least 3 hours compared to 24 hours ago. Along/behind the
front, strong low/mid level frontogenesis will combine with
increasing ascent on the synoptic scale associated with the
amplifying mid/upper level trough. A 3-6 hour period of moderate
to potentially heavy snow is expected on Thursday in any given
location. The intensity of the snowfall combined with the
increasing northwest winds (20-30 mph sustained, 40-50 mph gusts)
will combine to cause at least brief periods of time with near-
blizzard conditions. Travel during the height of the snowfall will
be extremely hazardous, and nearly impassible.

Model QPF has continued to converge toward the 0.15-0.30" range
across the area, with the latest NBM 25th/75th percentiles almost
exclusively within that range. The 50th percentile/median is closer
to 0.20-0.25" for most locations and stuck close to those values.
It appears the main difference in total QPF amounts is due to the
longevity. The deterministic CMC/ECMWF last snow a bit longer (a
bit over 6 hours) due to a sharper, negatively tilted midlevel
trough that moves through Thursday afternoon into the early
evening. The GFS/NAM do not have this feature nearly as strong and
limit the duration to about 3-4 hours. At this point, it is too
early to tell which solution is right, but we should gain more
clarity when this feature is sampled by the North American RAOB
network tomorrow (Wednesday) morning.

Forecasting the snow-to-liquid ratio (SLR) is just as (if not
more) difficult for this upcoming event. Soundings show a
deepening dendritic growth zone (DGZ) throughout the event, with
the last 1-2 hours potentially seeing DGZ depths of over 10 kft.
The crosshair signature (max lift centered in the DGZ) is present
in GFS soundings, though it is generally confined to about 2-3
hours or half the time of falling snow. At the end of the
snowfall, max lift is actually centered up to around 400 to 500
hPa or above the DGZ. This may tend to favor more plates/columns
vs. stellar dendrites and make the very anomalously deep DGZ moot.
Another concern is the strong winds fracturing the dendrites.
Unfortunately, there is not a ton of research on the role of
strong winds/fracturing and SLRs. The prevailing thought here
though is that the strong northwesterly near-surface winds will
play a role in lowering SLRs. Given all of this information, it
seems prudent to lean a bit above climatology (10-12:1), but not
too much higher given concerns alluded to above. For this event,
a general 13-15:1 cumulative SLR was used.

Total snowfall amounts of 2-4" are forecast across the area. A
higher magnitude snowfall (isolated 5-6" amounts) is not impossible
if the event ends up lasting a bit longer than forecast and SLRs are
closer to 15-20:1. However, this does not seem like the most likely
scenario at this point.

(Thursday Night - Saturday)

The story after the falling snow is the extreme cold and the
likelihood of some blowing and drifting of snow due to the very
strong northwest winds. Low temperatures for most of the area are
likely to drop well below zero, with some locations potentially
approaching -10F. As alluded to in the key messages above, these
values would be the coldest we have seen in our area during the
month of December since 1989. Confidence in these temperatures has
increased gradually with time as the air mass (originally from
Siberia) has begun to shift south/southeast. Morning lows earlier
today in northern British Columbia and parts of the Yukon
territory in Canada dropped below -50F! While the air mass will
obviously modify as it continues its southeastward plunge, these
observations are indicative of its strength. Speaking of the
strength of the air mass, record high surface pressures may be
recorded later this week in Montana. The current lower 48 record
is 1064 hPa from Miles City, MT, from December 1983. The below
zero temperatures combined with continued northwest winds of 20-30
mph through Friday will yield minimum wind chill values of
-25 to -35F Thursday night into Friday morning.

Friday will be the coldest daytime temperatures as well with highs
only climbing back into the single digits above zero. Mostly cloudy
conditions, some areas of blowing snow, and wind chills below
zero will make it look and feel even worse.

Friday night and Saturday will not be as cold, nor as windy as
earlier periods. Lows are forecast to be in the 0 to -5F range, with
minimum wind chill values of -15 to -25F. Similar to Thursday
night/Friday, coldest values are likely to be in northeast Missouri
and west-central Illinois. Saturday's high temperatures are likely
to warm up about 10 degrees compared to Friday, though still
generally in the teens or 25-30 degrees below normal for the date.

(Saturday Night - Next Tuesday)

Moderating temperatures are forecast through the end of the
Christmas holiday weekend into early next week as GEFS/EPS mean 850-
hPa temperatures climb back into the -5 to -10C range. We will have
to keep a close eye however on the potential for northwest flow
shortwaves. While climatology favors areas further to the north and
east, guidance has continued to suggest that one passing through
on/around Monday (12/26) that may be far enough southwest to
bring parts of our area accumulating snowfall. However, models
really tend to struggle pinning down the track/timing of these
shortwaves until about 48-72 hours out. At this very early
juncture (still 6 days out), slight chance PoPs for light snow
were added Sunday night. Temperature wise, readings should get
back into the 20s to low 30s early next week. Some areas probably
will get back above freezing, with the best chances in
southwestern portions of the CWA.

Gosselin

&&

.AVIATION...  (For the 06z TAFs through 06z Wednesday Night)
Issued at 1015 PM CST Tue Dec 20 2022

MVFR conditions are expected for central Missouri and west central
Illinois until the morning hours. However, there may be periods
of low VFR ceilings at KUIN, KCOU, and KJEF that cannot be ruled
out. Ceilings will lower to MVFR conditions by mid morning ahead
of the warm front. After the passage of the warm front VFR
ceilings are expected. Along with the passage of the warm front,
winds will shift from northerly this evening to southeasterly.

For the St. Louis area terminals, it looks like cloud cover will
stay north of the metro and ceilings will remain in low VFR
conditions. MVFR conditions does not seem as likely as previously
thought. Winds will gradually shift from northerly to
southeasterly through the early morning hours.

MG/Britt

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Winter Storm Watch from Thursday morning through Thursday
     evening for Audrain MO-Boone MO-Callaway MO-Cole MO-
     Crawford MO-Franklin MO-Gasconade MO-Iron MO-Jefferson MO-
     Knox MO-Lewis MO-Lincoln MO-Madison MO-Marion MO-Moniteau
     MO-Monroe MO-Montgomery MO-Osage MO-Pike MO-Ralls MO-
     Reynolds MO-Saint Charles MO-Saint Francois MO-Saint Louis
     City MO-Saint Louis MO-Sainte Genevieve MO-Shelby MO-Warren
     MO-Washington MO.

     Wind Chill Watch from Thursday afternoon through Saturday
     morning for Audrain MO-Boone MO-Callaway MO-Knox MO-Lewis
     MO-Lincoln MO-Marion MO-Monroe MO-Montgomery MO-Pike MO-
     Ralls MO-Shelby MO-Warren MO.

     Wind Chill Watch from Thursday evening through Friday morning
     for Cole MO-Crawford MO-Franklin MO-Gasconade MO-Iron MO-
     Jefferson MO-Madison MO-Moniteau MO-Osage MO-Reynolds MO-
     Saint Charles MO-Saint Francois MO-Saint Louis City MO-
     Saint Louis MO-Sainte Genevieve MO-Washington MO.

IL...Winter Storm Watch from Thursday morning through Thursday
     evening for Adams IL-Bond IL-Brown IL-Calhoun IL-Clinton IL-
     Fayette IL-Greene IL-Jersey IL-Macoupin IL-Madison IL-
     Marion IL-Monroe IL-Montgomery IL-Pike IL-Randolph IL-Saint
     Clair-Washington IL.

     Wind Chill Watch from Thursday afternoon through Saturday
     morning for Adams IL-Brown IL-Calhoun IL-Greene IL-Jersey
     IL-Macoupin IL-Montgomery IL-Pike IL.

     Wind Chill Watch from Thursday evening through Friday morning
     for Bond IL-Clinton IL-Fayette IL-Madison IL-Marion IL-
     Monroe IL-Randolph IL-Saint Clair-Washington IL.

&&

WFO LSX
Hazardous weather outlook, Dec 20, 2:30 PM CST, 13 hours before
Hazardous Weather Outlook
National Weather Service St Louis MO
230 PM CST Tue Dec 20 2022

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-212030-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
230 PM CST Tue Dec 20 2022

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Accumulating snow is likely on Thursday. Strong winds on Thursday
combined with falling snow may result in blowing snow and near
blizzard conditions. Please see the Winter Storm Watch product for
more information.

Very cold temperatures and strong winds will result in dangerously
cold wind chill values from late Thursday through Saturday. Please
see the Wind Chill Watch product for more information.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Gosselin

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 21, 3:30 AM CSTWinter Storm WarningLSXAudrain, Boone, Callaway, Cole, Crawford, Franklin and 23 more41 hr

Nearby

Wind Chill Warnings in Missouri, 2022Wind Chill Warnings in Illinois, 2022Every wind chill warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.