Alert archive / Missouri / Wind Chill Advisories in 2021

Wind Chill Advisory 1, NWS St. Louis, MO

February 6, 20217 counties in Missouri; 6 counties in Illinois

NWS St. Louis, MO issued this wind chill advisory at Feb 6, 2021, 4:27 AM CST for 7 counties in Missouri; 6 counties in Illinois. It took effect at Feb 7, 2021, 12:00 AM CST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 6, 2021, 4:27 AM CST (10:27 UTC)
In effect from
Feb 7, 2021, 12:00 AM CST
Expired
Feb 7, 2021, 12:00 PM CST
In force
12 hr
Issued by
NWS St. Louis, MO

Counties Adams County, IL, Brown County, IL, Greene County, IL, Macoupin County, IL, Montgomery County, IL, Pike County, IL, Knox County, MO, Lewis County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 114 km from the middle of the area, began a volume at 10:27 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.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 10.5 hours before the alert went out and 224 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 2021-02-06Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2021-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.1939587897Sfc1 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
1101 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

423 
WWUS43 KLSX 061027
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
427 AM CST Sat Feb 6 2021

ILZ095-096-MOZ018-019-026-027-062200-
/O.NEW.KLSX.WC.Y.0001.210207T0600Z-210207T1700Z/
/O.EXT.KLSX.WW.Y.0009.210206T1800Z-210207T0300Z/
Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Shelby MO-
Including the cities of Hannibal, Mount Sterling, and Quincy
427 AM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM NOON TODAY TO 9 PM
CST THIS EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total
  snow accumulations of 2 to 3 inches. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 
  20 below zero.

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

* WHEN...For the Winter Weather Advisory, from noon today to 9 
  PM CST this evening. For the Wind Chill Advisory, from 
  midnight tonight to 11 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills
  could cause frostbite on exposed skin in as little as 30
  minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ064-065-069-100>102-MOZ061>065-072-073-062200-
/O.EXB.KLSX.WW.Y.0009.210206T1800Z-210207T0300Z/
Bond IL-Clinton IL-Crawford MO-Fayette IL-Franklin MO-
Jefferson MO-Madison IL-Monroe IL-Saint Charles MO-Saint Clair-
Saint Louis City MO-Saint Louis MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Saint Charles, Saint Louis, Sullivan, Union, Vandalia, 
and Washington
427 AM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM CST
THIS EVENING...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 
  inches.

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

* WHEN...From noon today to 9 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Reduced visibility 
  expected where snowfall rates are higher.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ058>060-097>099-MOZ034>036-041-042-047>052-059-060-062200-
/O.EXT.KLSX.WW.Y.0009.210206T1800Z-210207T0300Z/
Audrain MO-Boone MO-Calhoun IL-Callaway MO-Cole MO-Gasconade MO-
Greene IL-Jersey IL-Lincoln MO-Macoupin IL-Moniteau MO-Monroe MO-
Montgomery IL-Montgomery MO-Osage MO-Pike IL-Pike MO-Ralls MO-
Warren MO-
Including the cities of Bowling Green, Columbia, Fulton, 
Jefferson City, Litchfield, Mexico, and Pittsfield
427 AM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM NOON TODAY TO 9 PM
CST THIS EVENING...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 
  inches.

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

* WHEN...From noon today to 9 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Reduced visibility 
  expected where snowfall rates are higher.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves.

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

GKS
6 follow-up statements
370 
WWUS43 KLSX 062007
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
207 PM CST Sat Feb 6 2021

ILZ058>060-097-MOZ034>036-071100-
/O.EXB.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Greene IL-Macoupin IL-Monroe MO-Montgomery IL-Pike IL-Pike MO-
Ralls MO-
Including the cities of Bowling Green, Litchfield, and Pittsfield
207 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of one to two inches. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 
  20 below zero.

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

* WHEN...For the Winter Weather Advisory, until 9 PM CST this 
  evening. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ095-096-MOZ018-019-026-027-071100-
/O.EXT.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Shelby MO-
Including the cities of Hannibal, Mount Sterling, and Quincy
207 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WIND CHILL ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of one to two inches. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low as 
  20 below zero.

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

* WHEN...For the Winter Weather Advisory, until 9 PM CST this 
  evening. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind 
  chills could cause frostbite on exposed skin in as little as 
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ064-065-069-098>102-MOZ041-042-047>052-059>065-072-073-070300-
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Audrain MO-Bond IL-Boone MO-Calhoun IL-Callaway MO-Clinton IL-
Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Jefferson MO-Jersey IL-Lincoln MO-Madison IL-Moniteau MO-
Monroe IL-Montgomery MO-Osage MO-Saint Charles MO-Saint Clair-
Saint Louis City MO-Saint Louis MO-Warren MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Columbia, 
Edwardsville, Fulton, Jefferson City, Mexico, Saint Charles, 
Saint Louis, Sullivan, Union, Vandalia, and Washington
207 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to two inches.

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

* WHEN...Until 9 PM CST this evening.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

TES
034 
WWUS43 KLSX 070105
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
705 PM CST Sat Feb 6 2021

ILZ095-096-MOZ018-019-026-027-034-035-071315-
/O.CAN.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Ralls MO-
Shelby MO-
Including the cities of Hannibal, Mount Sterling, and Quincy
705 PM CST Sat Feb 6 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

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

* WHEN...From midnight tonight to noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

MOZ041-042-047-070215-
/O.CAN.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Audrain MO-Boone MO-Moniteau MO-
Including the cities of Columbia and Mexico
705 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended or will be ending shortly across the
area. Therefore the Winter Weather Advisory is cancelled.

$$

ILZ058>060-097-MOZ036-071315-
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Greene IL-Macoupin IL-Montgomery IL-Pike IL-Pike MO-
Including the cities of Bowling Green, Litchfield, and Pittsfield
705 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations of up to one inch. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 15 below 
  zero.

* WHERE...In Illinois, Montgomery IL, Pike IL, Greene IL and 
  Macoupin IL Counties. In Missouri, Pike MO County.

* WHEN...For the Winter Weather Advisory, until 9 PM CST this 
  evening. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Sunday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ064-065-069-098>102-MOZ048>052-059>065-072-073-070300-
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Bond IL-Calhoun IL-Callaway MO-Clinton IL-Cole MO-Crawford MO-
Fayette IL-Franklin MO-Gasconade MO-Jefferson MO-Jersey IL-
Lincoln MO-Madison IL-Monroe IL-Montgomery MO-Osage MO-
Saint Charles MO-Saint Clair-Saint Louis City MO-Saint Louis MO-
Warren MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Fulton, Jefferson City, Saint Charles, Saint Louis, Sullivan, 
Union, Vandalia, and Washington
705 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to one inch.

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

* WHEN...Until 9 PM CST this evening.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

Carney
360 
WWUS43 KLSX 070225
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
825 PM CST Sat Feb 6 2021

ILZ097-MOZ036-071430-
/O.CAN.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Pike IL-Pike MO-
Including the cities of Bowling Green and Pittsfield
825 PM CST Sat Feb 6 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

* WHERE...In Illinois, Pike IL County. In Missouri, Pike MO 
  County.

* WHEN...From midnight tonight to noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

MOZ048>051-070330-
/O.CAN.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Callaway MO-Cole MO-Montgomery MO-Osage MO-
Including the cities of Fulton and Jefferson City
825 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended or will be ending shortly. Therefore
the Winter Weather Advisory is cancelled.

$$

ILZ058>060-071430-
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Greene IL-Macoupin IL-Montgomery IL-
Including the city of Litchfield
825 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow. Snow 
  accumulations of up to one inch. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 15 below 
  zero.

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

* WHEN...For the Winter Weather Advisory, until 9 PM CST this 
  evening. For the Wind Chill Advisory, from midnight tonight to 
  noon CST Sunday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

The latest road conditions can be obtained on the Internet at
www.gettingaroundillinois.com.

&&

$$

ILZ064-065-069-098>102-MOZ052-059>065-072-073-070330-
/O.CON.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Bond IL-Calhoun IL-Clinton IL-Crawford MO-Fayette IL-Franklin MO-
Gasconade MO-Jefferson MO-Jersey IL-Lincoln MO-Madison IL-
Monroe IL-Saint Charles MO-Saint Clair-Saint Louis City MO-
Saint Louis MO-Warren MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Saint Charles, Saint Louis, Sullivan, Union, Vandalia, 
and Washington
825 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

* WHAT...Snow. Snow accumulations of up to one inch.

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

* WHEN...Until 9 PM CST this evening.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of
accumulating snow will primarily cause travel difficulties. Roads
may rapidly become slippery once the snow begins, so motorists
should plan for a slower than normal trip. Be especially alert
when approaching bridges, overpasses, and curves. 

In Illinois, the latest road conditions can be obtained on the
Internet at www.gettingaroundillinois.com. In Missouri, the
latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ095-096-MOZ018-019-026-027-034-035-071430-
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Ralls MO-
Shelby MO-
Including the cities of Hannibal, Mount Sterling, and Quincy
825 PM CST Sat Feb 6 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON CST SUNDAY...

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

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

* WHEN...From midnight tonight to noon CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

Carney
709 
WWUS43 KLSX 070308
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
908 PM CST Sat Feb 6 2021

ILZ058>060-071515-
/O.EXP.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Greene IL-Macoupin IL-Montgomery IL-
Including the city of Litchfield
908 PM CST Sat Feb 6 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST SUNDAY...
...WINTER WEATHER ADVISORY HAS EXPIRED...

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

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

* WHEN...Until noon CST Sunday.

* IMPACTS...A Wind Chill Advisory means that very cold air and
  strong winds will combine to generate low wind chill values.
  This will result in frost bite and lead to hypothermia if
  precautions are not taken. If you must venture outdoors, make
  sure you wear a hat and gloves, making sure all exposed skin is
  covered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

ILZ064-065-069-098>102-MOZ052-059>065-072-073-070415-
/O.EXP.KLSX.WW.Y.0009.000000T0000Z-210207T0300Z/
Bond IL-Calhoun IL-Clinton IL-Crawford MO-Fayette IL-Franklin MO-
Gasconade MO-Jefferson MO-Jersey IL-Lincoln MO-Madison IL-
Monroe IL-Saint Charles MO-Saint Clair-Saint Louis City MO-
Saint Louis MO-Warren MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Saint Charles, Saint Louis, Sullivan, Union, Vandalia, 
and Washington
908 PM CST Sat Feb 6 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snow is tapering off to flurries. Little or no additional
accumulation is expected.

$$

ILZ095>097-MOZ018-019-026-027-034>036-071515-
/O.CON.KLSX.WC.Y.0001.210207T0600Z-210207T1800Z/
Adams IL-Brown IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Pike IL-
Pike MO-Ralls MO-Shelby MO-
Including the cities of Bowling Green, Hannibal, Mount Sterling, 
Pittsfield, and Quincy
908 PM CST Sat Feb 6 2021

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

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

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

* WHEN...Until noon CST Sunday.

* IMPACTS...A Wind Chill Advisory means that very cold air and
  strong winds will combine to generate low wind chill values.
  This will result in frost bite and lead to hypothermia if
  precautions are not taken. If you must venture outdoors, make
  sure you wear a hat and gloves, making sure all exposed skin is
  covered..

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

Carney
728 
WWUS43 KLSX 070941
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
341 AM CST Sun Feb 7 2021


ILZ058>060-095>097-MOZ018-019-026-027-034>036-071800-
/O.CON.KLSX.WC.Y.0001.000000T0000Z-210207T1800Z/
Adams IL-Brown IL-Greene IL-Knox MO-Lewis MO-Macoupin IL-
Marion MO-Monroe MO-Montgomery IL-Pike IL-Pike MO-Ralls MO-
Shelby MO-
Including the cities of Bowling Green, Hannibal, Litchfield, 
Mount Sterling, Pittsfield, and Quincy
341 AM CST Sun Feb 7 2021

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

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

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

* WHEN...Until noon CST Sunday.

* IMPACTS...A Wind Chill Advisory means that very cold air and
  strong winds will combine to generate low wind chill values.
  This will result in frost bite and lead to hypothermia if
  precautions are not taken. If you must venture outdoors, make
  sure you wear a hat and gloves, making sure all exposed skin is
  covered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that very cold air and strong winds
will combine to generate low wind chill values. This will result
in frost bite and lead to hypothermia if precautions are not
taken. If you must venture outdoors, make sure you wear a hat and
gloves, making sure all exposed skin is covered. 

&&

$$

Gosselin
615 
WWUS43 KLSX 071825
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
1225 PM CST Sun Feb 7 2021

ILZ058>060-095>097-MOZ018-019-026-027-034>036-071930-
/O.EXP.KLSX.WC.Y.0001.000000T0000Z-210207T1800Z/
Adams IL-Brown IL-Greene IL-Knox MO-Lewis MO-Macoupin IL-
Marion MO-Monroe MO-Montgomery IL-Pike IL-Pike MO-Ralls MO-
Shelby MO-
Including the cities of Bowling Green, Hannibal, Litchfield, 
Mount Sterling, Pittsfield, and Quincy
1225 PM CST Sun Feb 7 2021

...WIND CHILL ADVISORY HAS EXPIRED...

Even though the Wind Chill Advisory has expired, wind chills
between 5 and 12 below zero will persist over much of this area
through late Monday morning. In venturing outside for any length
of time, please take appropriate precautions. 

$$

TES

Nearby

Wind Chill Advisories in Missouri, 2021Wind Chill Advisories in Illinois, 2021Every wind chill advisory in 2021

Sources

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