Alert archive / Illinois / Wind Chill Advisories in 2019

Wind Chill Advisory 3, NWS St. Louis, MO

January 30, 20197 counties in Illinois; 7 counties in Missouri

NWS St. Louis, MO issued this wind chill advisory at Jan 30, 2019, 4:36 AM CST for 7 counties in Illinois; 7 counties in Missouri. It took effect at Jan 30, 2019, 3:00 PM CST. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Jan 30, 2019, 4:36 AM CST (10:36 UTC)
In effect from
Jan 30, 2019, 3:00 PM CST
Expired
Jan 31, 2019, 11:29 AM CST
In force
20 hr
Issued by
NWS St. Louis, MO

Counties Adams County, IL, Brown County, IL, Fayette 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), 105 km from the middle of the area, began a volume at 10:36 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, 10.6 hours before the alert went out and 213 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 2019-01-30Temperature 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 2019-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 square meters per square second.1939587897117Sfc1 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
1289 m above ground
0-6 km bulk shear
93 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

645 
WWUS43 KLSX 301036 CCA
WSWLSX

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Saint Louis MO
436 AM CST Wed Jan 30 2019


ILZ058>060-095>097-MOZ018-019-026-027-034>036-302200-
/O.NEW.KLSX.WC.Y.0003.190130T2100Z-190131T1800Z/
/O.EXT.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
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
436 AM CST Wed Jan 30 2019

...WIND CHILL WARNING NOW IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO NOON
CST THURSDAY...

* WHAT...Dangerously cold wind chills. Very cold wind chills
  expected. Wind chills as low as 40 below zero this morning. Wind
  chills tonight as low as 25 below zero expected.

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

* WHEN...For the Wind Chill Warning, until 3 PM CST this 
  afternoon. For the Wind Chill Advisory, from 3 PM this 
  afternoon to noon CST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered. 

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. 

&&

$$

ILZ069-074-098>101-MOZ041-050>052-060-061-063-064-302200-
/O.NEW.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
/O.CON.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
Boone MO-Calhoun IL-Callaway MO-Clinton IL-Jersey IL-Lincoln MO-
Madison IL-Montgomery MO-Saint Charles MO-Saint Clair IL-
Saint Louis City MO-Saint Louis MO-Warren MO-Washington IL-
Including the cities of Alton, Belleville, Cahokia, Columbia, 
Edwardsville, Fulton, Saint Charles, and Saint Louis
436 AM CST Wed Jan 30 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT CST TONIGHT...

* WHAT...Dangerously cold wind chills. Snow expected. Wind chills
  as low as 25 below zero through early afternoon. Total snow 
  accumulations of up to one inch expected.

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

* WHEN...For the Wind Chill Warning, until 3 PM CST this 
  afternoon. For the Winter Weather Advisory, from 3 PM this 
  afternoon to midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions could impact the evening commute. The cold
  wind chills could cause frostbite on exposed skin in as little 
  as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered. 

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. 

&&

$$

ILZ064-065-070-MOZ042-302100-
/O.CON.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
Audrain MO-Bond IL-Fayette IL-Marion IL-
Including the cities of Centralia, Mexico, Salem, and Vandalia
436 AM CST Wed Jan 30 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* WHAT...Dangerously cold wind chills expected. Wind chills as 
  low as 30 below zero expected through early this afternoon.

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

* WHEN...Through 3 PM CST today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered.

&&

$$

ILZ079-102-MOZ047>049-059-062-065-072>075-302200-
/O.COR.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
/O.COR.KLSX.WC.Y.0002.000000T0000Z-190130T1800Z/
Cole MO-Crawford MO-Franklin MO-Gasconade MO-Jefferson MO-
Moniteau MO-Monroe IL-Osage MO-Randolph IL-Saint Francois MO-
Sainte Genevieve MO-Washington MO-
Including the cities of Chester, Farmington, Jefferson City, 
Sparta, Sullivan, Union, and Washington
436 AM CST Wed Jan 30 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT CST TONIGHT...

* WHAT...Very cold wind chills. Snow expected. Total snow 
  accumulations of up to one inch expected. Wind chills as low 
  as 20 below zero through Noon.

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

* WHEN...For the Winter Weather Advisory, from 3 PM this 
  afternoon to midnight CST tonight. For the Wind Chill 
  Advisory, until noon CST today.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions could impact the evening commute. 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. 

&&

$$

MOZ084-085-099-301800-
/O.CON.KLSX.WC.Y.0002.000000T0000Z-190130T1800Z/
Iron MO-Madison MO-Reynolds MO-
436 AM CST Wed Jan 30 2019

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

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

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

* WHEN...Through noon today.

* ADDITIONAL DETAILS...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.

&&

$$

Byrd
8 follow-up statements
602 
WWUS43 KLSX 301745
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
1145 AM CST Wed Jan 30 2019

ILZ079-102-MOZ047>049-059-062-065-072>075-302300-
/O.EXP.KLSX.WC.Y.0002.000000T0000Z-190130T1800Z/
/O.CON.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Cole MO-Crawford MO-Franklin MO-Gasconade MO-Jefferson MO-
Moniteau MO-Monroe IL-Osage MO-Randolph IL-Saint Francois MO-
Sainte Genevieve MO-Washington MO-
Including the cities of Chester, Farmington, Jefferson City, 
Sparta, Sullivan, Union, and Washington
1145 AM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...
...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

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

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

* WHEN...From 3 PM this afternoon to midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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. 

&&

$$

MOZ084-085-099-301845-
/O.EXP.KLSX.WC.Y.0002.000000T0000Z-190130T1800Z/
Iron MO-Madison MO-Reynolds MO-
1145 AM CST Wed Jan 30 2019

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

Temperatures have risen into the single digits and combined with
light winds, have allowed wind chill values to rise into the zero
to 10 below zero range. Further improvement is expected later this
afternoon. While no longer dangerous, make sure you take proper
precautions for very cold weather if venturing outdoors today or
tonight. 

$$

ILZ069-074-098>101-MOZ041-050>052-060-061-063-064-302300-
/O.CON.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.CON.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Boone MO-Calhoun IL-Callaway MO-Clinton IL-Jersey IL-Lincoln MO-
Madison IL-Montgomery MO-Saint Charles MO-Saint Clair IL-
Saint Louis City MO-Saint Louis MO-Warren MO-Washington IL-
Including the cities of Alton, Belleville, Cahokia, Columbia, 
Edwardsville, Fulton, Saint Charles, and Saint Louis
1145 AM CST Wed Jan 30 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO MIDNIGHT CST TONIGHT...

* WHAT...Dangerously cold wind chills. Snow expected. Wind chills
  as low as 20 below zero. Total snow accumulations of up to 2 
  inches expected.

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

* WHEN...For the Wind Chill Warning, until 3 PM CST this 
  afternoon. For the Winter Weather Advisory, from 3 PM this 
  afternoon to midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered. 

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>060-095>097-MOZ018-019-026-027-034>036-302300-
/O.CON.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.CON.KLSX.WC.Y.0003.190130T2100Z-190131T1800Z/
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
1145 AM CST Wed Jan 30 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO NOON CST THURSDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 30
  below zero expected.

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

* WHEN...For the Wind Chill Warning, until 3 PM CST this 
  afternoon. For the Wind Chill Advisory, from 3 PM this 
  afternoon to noon CST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered. 

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. 

&&

$$

ILZ064-065-070-MOZ042-302100-
/O.CON.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
Audrain MO-Bond IL-Fayette IL-Marion IL-
Including the cities of Centralia, Mexico, Salem, and Vandalia
1145 AM CST Wed Jan 30 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

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

* WHERE...In Missouri, Audrain MO County. In Illinois, Fayette 
  IL, Bond IL and Marion IL Counties.

* WHEN...Until 3 PM CST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Warning means the combination of very cold air and
strong winds will create dangerously low wind chill values. This
will result in frost bite and lead to hypothermia or death if
precautions are not taken. If you must venture outdoors, be
certain to dress properly, with several layers of light-weight,
loose fitting clothing and making sure that all exposed skin is
covered. 

&&

$$

TES
634 
WWUS43 KLSX 302056
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
256 PM CST Wed Jan 30 2019

ILZ069-074-101-MOZ041-050-051-060-061-063-064-310600-
/O.CAN.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.CON.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Boone MO-Callaway MO-Clinton IL-Montgomery MO-Saint Charles MO-
Saint Clair IL-Saint Louis City MO-Saint Louis MO-Warren MO-
Washington IL-
Including the cities of Belleville, Cahokia, Columbia, Fulton, 
Saint Charles, and Saint Louis
256 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Up to 2 inches of snow is expected.

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

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions could impact the evening commute.

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. 

&&

$$

ILZ098>100-MOZ052-310600-
/O.EXP.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.CON.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Calhoun IL-Jersey IL-Lincoln MO-Madison IL-
Including the cities of Alton and Edwardsville
256 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

* WHAT...Snow expected. Total snow accumulations of up to one 
  inch expected.

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

* WHEN...Until to midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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. 

&&

$$

ILZ064-070-MOZ042-310600-
/O.EXP.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.EXA.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Audrain MO-Bond IL-Marion IL-
Including the cities of Centralia, Mexico, and Salem
256 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WIND CHILL WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

* WHAT...Snow expected. Total snow accumulations of up to one 
  inch expected.

* WHERE...In Missouri, Audrain MO County. In Illinois, Bond IL 
  and Marion IL Counties.

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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. 

&&

$$

ILZ065-311000-
/O.EXP.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.EXA.KLSX.WC.Y.0003.190130T2100Z-190131T1800Z/
Fayette IL-
Including the city of Vandalia
256 PM CST Wed Jan 30 2019

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...WIND CHILL WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

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

* WHERE...Fayette IL County.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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. 

&&

$$

ILZ058>060-095>097-MOZ018-019-026-027-034>036-311000-
/O.EXP.KLSX.WC.W.0001.000000T0000Z-190130T2100Z/
/O.CON.KLSX.WC.Y.0003.190130T2100Z-190131T1800Z/
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
256 PM CST Wed Jan 30 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
...WIND CHILL WARNING WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

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

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

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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. 

&&

$$

MOZ084-085-310600-
/O.EXA.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Iron MO-Madison MO-
256 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* WHAT...Snow expected. Total snow accumulations of up to one 
  inch expected.

* WHERE...Iron MO and Madison MO Counties.

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute. 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. 

The latest road conditions can be obtained on the Internet at
traveler.modot.org/map/ or by calling 1-888-275-6636.

&&

$$

ILZ079-102-MOZ047>049-059-062-065-072>075-310600-
/O.CON.KLSX.WW.Y.0006.190130T2100Z-190131T0600Z/
Cole MO-Crawford MO-Franklin MO-Gasconade MO-Jefferson MO-
Moniteau MO-Monroe IL-Osage MO-Randolph IL-Saint Francois MO-
Sainte Genevieve MO-Washington MO-
Including the cities of Chester, Farmington, Jefferson City, 
Sparta, Sullivan, Union, and Washington
256 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

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

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

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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. 

&&

$$

BSH
025 
WWUS43 KLSX 310156
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
756 PM CST Wed Jan 30 2019

ILZ098-099-MOZ041-042-047-048-050>052-310300-
/O.CAN.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Audrain MO-Boone MO-Calhoun IL-Callaway MO-Cole MO-Jersey IL-
Lincoln MO-Moniteau MO-Montgomery MO-
Including the cities of Columbia, Fulton, Jefferson City, 
and Mexico
756 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended across the region therefore the winter
weather advisory has been cancelled. Use caution when traveling as
snow covered roads will result in hazardous driving conditions.

$$

ILZ064-069-070-074-079-100>102-MOZ049-059>065-072>075-084-085-
310600-
/O.CON.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Bond IL-Clinton IL-Crawford MO-Franklin MO-Gasconade MO-Iron MO-
Jefferson MO-Madison IL-Madison MO-Marion IL-Monroe IL-Osage MO-
Randolph IL-Saint Charles MO-Saint Clair IL-Saint Francois MO-
Saint Louis City MO-Saint Louis MO-Sainte Genevieve MO-Warren MO-
Washington IL-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Centralia, 
Chester, Edwardsville, Farmington, Saint Charles, Saint Louis, 
Salem, Sparta, Sullivan, Union, and Washington
756 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Up to 2 inches of snow is expected.

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

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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>060-065-095>097-MOZ018-019-026-027-034>036-311400-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
Adams IL-Brown IL-Fayette 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, Quincy, and Vandalia
756 PM CST Wed Jan 30 2019

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

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

* WHERE...Northeast Missouri and West Central Illinois and
  portions of South Central Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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.

&&

$$

Glass
803 
WWUS43 KLSX 310325
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
925 PM CST Wed Jan 30 2019

MOZ049-059-060-310430-
/O.CAN.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Gasconade MO-Osage MO-Warren MO-
925 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended across the region therefore the winter
weather advisory has been cancelled. Use caution when traveling as
snow covered roads will result in hazardous driving conditions.

$$

ILZ064-069-070-074-079-100>102-MOZ061>065-072>075-084-085-310600-
/O.CON.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Bond IL-Clinton IL-Crawford MO-Franklin MO-Iron MO-Jefferson MO-
Madison IL-Madison MO-Marion IL-Monroe IL-Randolph IL-
Saint Charles MO-Saint Clair IL-Saint Francois MO-
Saint Louis City MO-Saint Louis MO-Sainte Genevieve MO-
Washington IL-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Centralia, 
Chester, Edwardsville, Farmington, Saint Charles, Saint Louis, 
Salem, Sparta, Sullivan, Union, and Washington
925 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Additional snowfall amounts less than a half inch. Storm
  totals up to 2 inches of snow.

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

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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>060-065-095>097-MOZ018-019-026-027-034>036-310600-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
Adams IL-Brown IL-Fayette 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, Quincy, and Vandalia
925 PM CST Wed Jan 30 2019

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

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

* WHERE...Northeast Missouri and West Central Illinois and 
  portions of South Central Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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.

&&

$$

Glass
248 
WWUS43 KLSX 310354
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
954 PM CST Wed Jan 30 2019

ILZ064-100-MOZ061>065-072-310500-
/O.CAN.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Bond IL-Crawford MO-Franklin MO-Jefferson MO-Madison IL-
Saint Charles MO-Saint Louis City MO-Saint Louis MO-
Including the cities of Alton, Edwardsville, Saint Charles, 
Saint Louis, Sullivan, Union, and Washington
954 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended across the region therefore the winter
weather advisory has been cancelled. Use caution when traveling as
snow covered roads will result in hazardous driving conditions.


$$

ILZ069-070-074-079-101-102-MOZ073>075-084-085-310600-
/O.CON.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Clinton IL-Iron MO-Madison MO-Marion IL-Monroe IL-Randolph IL-
Saint Clair IL-Saint Francois MO-Sainte Genevieve MO-
Washington IL-Washington MO-
Including the cities of Belleville, Cahokia, Centralia, Chester, 
Farmington, Salem, and Sparta
954 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Additional snowfall amounts less than a half inch. 
  Storm totals up to 2 inches of snow.

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

* WHEN...Until midnight CST tonight.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

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>060-065-095>097-MOZ018-019-026-027-034>036-310600-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
Adams IL-Brown IL-Fayette 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, Quincy, and Vandalia
954 PM CST Wed Jan 30 2019

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

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

* WHERE...Northeast Missouri and West Central Illinois and 
  portions of South Central Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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.

&&

$$

Glass
495 
WWUS43 KLSX 310501
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
1101 PM CST Wed Jan 30 2019


ILZ069-070-074-079-101-102-MOZ073>075-084-085-310615-
/O.CAN.KLSX.WW.Y.0006.000000T0000Z-190131T0600Z/
Clinton IL-Iron MO-Madison MO-Marion IL-Monroe IL-Randolph IL-
Saint Clair IL-Saint Francois MO-Sainte Genevieve MO-
Washington IL-Washington MO-
Including the cities of Belleville, Cahokia, Centralia, Chester, 
Farmington, Salem, and Sparta
1101 PM CST Wed Jan 30 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended across the region therefore the winter
weather advisory has been cancelled. Use caution when traveling as
snow covered roads will result in hazardous driving conditions.

$$

ILZ058>060-065-095>097-MOZ018-019-026-027-034>036-311715-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
Adams IL-Brown IL-Fayette 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, Quincy, and Vandalia
1101 PM CST Wed Jan 30 2019

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

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

* WHERE...Northeast Missouri and West Central Illinois and 
  portions of South Central Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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.

&&

$$

Glass
584 
WWUS43 KLSX 310911
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
311 AM CST Thu Jan 31 2019


ILZ058>060-065-311015-
/O.CAN.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
Fayette IL-Greene IL-Macoupin IL-Montgomery IL-
Including the cities of Litchfield and Vandalia
311 AM CST Thu Jan 31 2019

...WIND CHILL ADVISORY IS CANCELLED...

Winds have diminished so wind chill values are below advisory
criteria, so the wind chill advisory has been cancelled.

$$

ILZ095>097-MOZ018-019-026-027-034>036-311800-
/O.CON.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
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
311 AM CST Thu Jan 31 2019

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

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

* WHERE...Northeast Missouri and West Central Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...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.

&&

$$

Byrd
045 
WWUS43 KLSX 311729
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
1129 AM CST Thu Jan 31 2019


ILZ095>097-MOZ018-019-026-027-034>036-311830-
/O.CAN.KLSX.WC.Y.0003.000000T0000Z-190131T1800Z/
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
1129 AM CST Thu Jan 31 2019

...WIND CHILL ADVISORY IS CANCELLED...

Wind chill values have risen across the advisory area to mainly
between -5 and -10F. Therefore, the advisory will be cancelled.

$$

Gosselin

What forecasters said that day

The local office's own words before this wind chill advisory 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 advisory went out at Jan 30, 3:34 AM CST, 1 hour 2 minutes earlier.

Area forecast discussion, Jan 30, 3:34 AM CST, 1 hour 2 minutes before
Area Forecast Discussion
National Weather Service Saint Louis MO
334 AM CST Wed Jan 30 2019

.SHORT TERM...  (Through Late Tonight)
Issued at 332 AM CST Wed Jan 30 2019

Arctic air mass has taken hold over the region with temperatures
well below freezing. As of 08z, temperatures range from 10 degrees
above zero in southeast Missouri to around 10 below zero in
northeast Missouri. Even though gusty northwest winds will slowly
diminish, dangerous wind chill values will persist through the next
24 to 36 hours.

Onto more pressing weather concerns. All of the current CAMs show
decent clipper system sliding southeast through region today into
early tonight. Majority of the models have axis of light snow just
south of St. Louis metro area between 21z Wednesday and 05z
Thursday. However, the trends have been to slowly shift this axis to
the north towards St. Louis. All of this is due to strong low level
frontogenesis generally around 850mb. While there is only a few
hundredths of qpf with this system, with the very cold airmass, snow
ratios are forecast to be around 22:1. Could see up to an inch of
snow possible wherever this narrow band sets up. Because it will
fall just before, during and after the evening commute, this could
cause a few travel issues. Will issue a Winter Weather Advisory for
areas along I-70, including St. Louis metro area and portions of
southeast Missouri from 21z Wednesday through 06z Thursday.

As for temperatures, highs will struggle to warm up much today.
Highs will range from around minus 5 in the far north to the upper
teens in the far south. Another cold night tonight with lows ranging
from minus 10 far north to around 10 above far south. With wind
chill values only in advisory criteria this afternoon through
tonight in the north, will downgrade wind chill warning to an
advisory after 21z Wednesday.

By Thursday, as surface ridge moves off to the east, temperatures
will begin to moderate with highs in the upper teens to mid 30s.
Could see another shot of light snow for northeastern portions of
the forecast area as a clipper system slides through, mainly east of
Mississippi river beginning Thursday afternoon.

Byrd

Carney

.LONG TERM...  (Thursday through Tuesday)
Issued at 332 AM CST Wed Jan 30 2019

Low level warm advection will increase on Thursday night as an 850mb
trough drifts east from the Great Plains into the Midwest.  The
Arctic high over the Ohio Valley will try to impede the flow of warm
air back into Missouri, but all short range guidance now has the
warm front drifting up to between St. Louis and Quincy overnight.
Models to produce some spotty light QPF...mainly south of the warm
front Thursday night, but there doesn't seem to be any consistency
in timing or placement of the QPF so this may just be the typical
false QPF due to moisture return in warm advection.  Regardless, the
QPF is so light that it's barely worth mentioning.  It looks like
there will be a wide range of low temperatures across the front with
low teens in northeast Missouri where the tail end of the Arctic air
will be lingering up to the low 30s south of I-70.

A weak low forms along the front on Friday and travels east into
Illinois through 18Z.  This may briefly push the cold air back to
the south slightly in spite of continuing warm advection aloft.
Therefore the temperature forecast across northeast Missouri and
west central Illinois for Friday is challenging.  There is the
additional complication of snow pack up there which according to our
cooperative observers is still 2-4 inches deep and in some spots 5-6
inches.  MOS looks a little too warm given the position of the front
and the snow pack so I lowered highs a few degrees north of the
front to right around freezing.  The warm front finally pushes off
to the north on Friday night which will finally allow warmer air to
stream up into northern Missouri and west central Illinois.

The weekend continues to look very mild with temperatures well above
normal as warm advection continues across the mid Mississippi
Valley.  Highs in the 40s and 50s will prevail on Saturday and
temperatures kiss 60 on Sunday in some parts of the forecast area.
Unfortunately, it may be somewhat cloudy and gloomy with only a few
peeks of sunshine...and there is a chance of showers on Sunday
afternoon ahead of the next short wave which will be digging into
the central Plains.  While well organized precipitation doesn't look
very likely, the GFS and ECMWF so show some weak to moderate 850mb
moisture convergence over Missouri and Illinois during the
afternoon, and a diffluent pattern aloft to help increase lift.

Models are in much better agreement this morning than they were
yesterday with the Monday system.  All medium range models move the
surface low from the eastern Plains up to near the
Michigan/Minnesota border by 12Z Monday, and push the cold front
into the forecast area during the day Monday.  The GFS more
aggressive with the front, moving it all the way through Missouri and
Illinois by 00Z Tuesday.  The EC and GEM stall the front as the
upper short wave becomes strongly negatively tilted and the front
takes on an east-west orientation and stalls over Missouri and
Illinois.  Obviously the position of the front will have a large
impact on temperatures late Monday through Tuesday...and will
possibly have an impact on precipitation chances and types as well.
The EC and GEM produce a 1/4 inch or more of QPF north of the front
in the cold air.  While temperatures in the column probably won't be
cold enough for snow, it may be cold enough at the surface for
freezing rain during the morning in northern Missouri and west
central Illinois.  Confidence is not high though so have kept
mention of freezing rain out of the forecast for now.

Carney

Carney

&&

.AVIATION...  (For the 06z TAFs through 06z Wednesday Night)
Issued at 1117 PM CST Tue Jan 29 2019

NW winds will slowly diminish Wed morning. Can not rule out a
brief gust at KCOU or KUIN overnight, but these areas seem to be
slightly decoupled. Otherwise, VFR conditions are currently
expected to prevail. Guidance is suggesting the track of the next
round of snow may shift further to the NE and impact
KCOU/KSUS/KCPS. If these trends continue, snow will need to be
added during the late afternoon and early evening hours.

SPECIFICS FOR KSTL: VFR and dry thru the period. However, trends
are suggesting the next round of snow may shift further NE
compared to previous forecasts. This would suggest snow late Wed
afternoon into the early evening hours. Otherwise, NW winds will
slowly diminish Wed morning and remain under 10 kts thru the
remainder of the period.

Tilly

&&

.CLIMATE...

Record lows and record "low" high temperatures

               Wednesday (Jan. 30)         Thursday (Jan. 31)

St. Louis     -9 (1936)/ 10 (2004)        -9 (1936)/ 10 (1951)

Columbia      -9 (1936)/ 8 (1965)        -12 (1936)/ 5 (1985)

Quincy       -13 (1965)/ 1 (2004)        -14 (1996)/ 3 (1985)

&&

.PRELIMINARY POINT TEMPS/POPS...
Saint Louis      7   4  26  26 /  70  70  10  10
Quincy          -4  -9  17  16 /   5   5  20  20
Columbia         5   3  32  29 /  70  40   5  10
Jefferson City   6   5  34  30 /  70  60   5  10
Salem            6   2  25  25 /  10  20  10  20
Farmington      11   6  32  30 /  70  70   5  20

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Winter Weather Advisory from 3 PM this afternoon to midnight CST
     tonight for Boone MO-Callaway MO-Cole MO-Crawford MO-
     Franklin MO-Gasconade MO-Jefferson MO-Lincoln MO-Moniteau
     MO-Montgomery MO-Osage MO-Saint Charles MO-Saint Francois
     MO-Saint Louis City MO-Saint Louis MO-Sainte Genevieve MO-
     Warren MO-Washington MO.

     Wind Chill Advisory until noon CST today for Cole MO-Crawford MO-
     Franklin MO-Gasconade MO-Iron MO-Jefferson MO-Madison MO-
     Moniteau MO-Osage MO-Reynolds MO-Saint Francois MO-Sainte
     Genevieve MO-Washington MO.

     Wind Chill Warning until 3 PM CST this afternoon for Audrain MO-
     Boone MO-Callaway MO-Knox MO-Lewis MO-Lincoln MO-Marion MO-
     Monroe MO-Montgomery MO-Pike MO-Ralls MO-Saint Charles MO-
     Saint Louis City MO-Saint Louis MO-Shelby MO-Warren MO.

     Wind Chill Advisory from 3 PM this afternoon to noon CST
     Thursday for Knox MO-Lewis MO-Marion MO-Monroe MO-Pike MO-
     Ralls MO-Shelby MO.

IL...Winter Weather Advisory from 3 PM this afternoon to midnight CST
     tonight for Calhoun IL-Clinton IL-Jersey IL-Madison IL-
     Monroe IL-Randolph IL-Saint Clair IL-Washington IL.

     Wind Chill Advisory until noon CST today for Monroe IL-Randolph
     IL.

     Wind Chill Warning until 3 PM CST this afternoon for Adams IL-
     Bond IL-Brown IL-Calhoun IL-Clinton IL-Fayette IL-Greene IL-
     Jersey IL-Macoupin IL-Madison IL-Marion IL-Montgomery IL-
     Pike IL-Saint Clair IL-Washington IL.

     Wind Chill Advisory from 3 PM this afternoon to noon CST
     Thursday for Adams IL-Brown IL-Greene IL-Macoupin IL-
     Montgomery IL-Pike IL.

&&

WFO LSX
Hazardous weather outlook, Jan 29, 3:30 PM CST, 13 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Saint Louis MO
330 PM CST Tue Jan 29 2019

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-302200-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
330 PM CST Tue Jan 29 2019

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

.DAY ONE...Tonight.

A period of dangerously cold air is ongoing, and when combined with
winds, will result in wind chills ranging from 15 below to 40 below
zero by late tonight. Please see the Wind Chill Warnings and
Advisories for further information.

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

The period of dangerously cold air will continue through Thursday
morning, and when combined with winds, will result in wind chills
ranging from 15 below to 40 below zero, especially during the late
night and early morning hours. Please see the Wind Chill Warnings
and Advisories for further information.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

TES

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 30, 3:47 AM CSTWinter Weather AdvisoryLSXBond, Calhoun, Clinton, Jersey, Madison, Marion and 4 more19 hr

Nearby

Wind Chill Advisories in Illinois, 2019Wind Chill Advisories in Missouri, 2019Every wind chill advisory in 2019

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.