Winter Storm Warning 1, NWS St. Louis, MO

938 
WWUS43 KLSX 102158
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
358 PM CST Fri Jan 10 2020


ILZ095-MOZ018-019-026-027-034-111000-
/O.CON.KLSX.WS.W.0001.200111T0000Z-200112T0600Z/
Adams IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Shelby MO-
Including the cities of Hannibal and Quincy
358 PM CST Fri Jan 10 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
SATURDAY NIGHT...

* WHAT...Heavy mixed precipitation expected. Total snow and sleet
  accumulations of 2 to 3 inches and ice accumulations of two
  tenths of an inch. Winds gusting as high as 35 mph.

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

* WHEN...From 6 PM this evening to midnight CST Saturday night.

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

* ADDITIONAL DETAILS...The combination of ice accumulation and 
  strong winds could lead to isolated power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and/or ice are expected. Strong winds are also possible. If
travel is necessary, make sure to exercise extreme caution. Begin
your travel with a full tank of gas, and carry a winter storm kit
which includes a shovel, flashlight, cellphone, food and water,
and blankets of extra warm clothing.

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.

&&

$$

ILZ096-097-MOZ035-036-041-042-047>052-059-060-062-072-111000-
/O.CON.KLSX.WW.Y.0001.200111T0600Z-200112T0600Z/
Audrain MO-Boone MO-Brown IL-Callaway MO-Cole MO-Crawford MO-
Franklin MO-Gasconade MO-Lincoln MO-Moniteau MO-Montgomery MO-
Osage MO-Pike IL-Pike MO-Ralls MO-Warren MO-
Including the cities of Bowling Green, Columbia, Fulton, 
Jefferson City, Mexico, Mount Sterling, Pittsfield, Sullivan, 
Union, and Washington
358 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO MIDNIGHT CST SATURDAY NIGHT...

* WHAT...Mixed precipitation expected. Total snow and sleet 
  accumulations of up to two inches and ice accumulations of up 
  to one tenth of an inch. Winds gusting as high as 35 mph.

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

* WHEN...From midnight tonight to midnight CST Saturday night.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...The combination of ice accumulation and 
  strong winds could lead to isolated power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory is issued for a variety of winter
weather conditions, such as snow, blowing snow, sleet, or
freezing drizzle and rain. It only takes a small amount of wintry
precipitation to make roads, bridges, sidewalks, and parking lots
icy and dangerous. It is often difficult to tell when ice begins
to form, so do not be caught off guard.

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

084 
WWUS43 KLSX 110930
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
330 AM CST Sat Jan 11 2020

ILZ095-MOZ018-019-026-027-034-112300-
/O.CON.KLSX.WS.W.0001.000000T0000Z-200112T0600Z/
Adams IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Shelby MO-
Including the cities of Hannibal and Quincy
330 AM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy mixed precipitation. Snow accumulations of 2 to 4
  inches and additional ice accumulations of one tenth to two 
  tenths of an inch. Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...The combination of ice accumulation and 
  strong winds could lead to isolated power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and/or ice are expected. Strong winds are also possible. If
travel is necessary, make sure to exercise extreme caution. Begin
your travel with a full tank of gas, and carry a winter storm kit
which includes a shovel, flashlight, cellphone, food and water,
and blankets of extra warm clothing.

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.

&&

$$

ILZ096-097-MOZ035-036-041-042-047>052-059-060-062-072-112300-
/O.CON.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Audrain MO-Boone MO-Brown IL-Callaway MO-Cole MO-Crawford MO-
Franklin MO-Gasconade MO-Lincoln MO-Moniteau MO-Montgomery MO-
Osage MO-Pike IL-Pike MO-Ralls MO-Warren MO-
Including the cities of Bowling Green, Columbia, Fulton, 
Jefferson City, Mexico, Mount Sterling, Pittsfield, Sullivan, 
Union, and Washington
330 AM CST Sat Jan 11 2020

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

* WHAT...Mixed precipitation. Snow accumulations of up to two 
  inches and ice accumulations of up to one tenth of an inch. 
  Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...The combination of ice accumulation and 
  strong winds could lead to isolated power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory is issued for a variety of winter
weather conditions, such as snow, blowing snow, sleet, or
freezing drizzle and rain. It only takes a small amount of wintry
precipitation to make roads, bridges, sidewalks, and parking lots
icy and dangerous. It is often difficult to tell when ice begins
to form, so do not be caught off guard.

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

247 
WWUS43 KLSX 112106
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
306 PM CST Sat Jan 11 2020


ILZ095-MOZ018-019-026-027-034-120600-
/O.CON.KLSX.WS.W.0001.000000T0000Z-200112T0600Z/
Adams IL-Knox MO-Lewis MO-Marion MO-Monroe MO-Shelby MO-
Including the cities of Hannibal and Quincy
306 PM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow and sleet. Snow and sleet accumulations of 2
  to 4 inches.  Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and/or ice are expected. Strong winds are also possible. If
travel is necessary, make sure to exercise extreme caution. Begin
your travel with a full tank of gas, and carry a winter storm kit
which includes a shovel, flashlight, cellphone, food and water,
and blankets of extra warm clothing.

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.

&&

$$

ILZ058-059-098>102-MOZ061-063>065-073-120600-
/O.EXA.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Calhoun IL-Greene IL-Jefferson MO-Jersey IL-Macoupin IL-
Madison IL-Monroe IL-Saint Charles MO-Saint Clair IL-
Saint Louis City MO-Saint Louis MO-Washington MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Saint Charles, and Saint Louis
306 PM CST Sat Jan 11 2020

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

* WHAT...Wet snow and sleet. Additional snow accumulations of up 
  to one inch. Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* 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.

&&

$$

ILZ096-097-MOZ035-036-041-042-047>052-059-060-062-072-120600-
/O.CON.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Audrain MO-Boone MO-Brown IL-Callaway MO-Cole MO-Crawford MO-
Franklin MO-Gasconade MO-Lincoln MO-Moniteau MO-Montgomery MO-
Osage MO-Pike IL-Pike MO-Ralls MO-Warren MO-
Including the cities of Bowling Green, Columbia, Fulton, 
Jefferson City, Mexico, Mount Sterling, Pittsfield, Sullivan, 
Union, and Washington
306 PM CST Sat Jan 11 2020

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

* WHAT...Snow and sleet. Snow and sleet accumulations of up to two
  inches. Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory is issued for a variety of winter
weather conditions, such as snow, blowing snow, sleet, or
freezing drizzle and rain. It only takes a small amount of wintry
precipitation to make roads, bridges, sidewalks, and parking lots
icy and dangerous. It is often difficult to tell when ice begins
to form, so do not be caught off guard.

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

861 
WWUS43 KLSX 120025
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
625 PM CST Sat Jan 11 2020

MOZ018-019-026-120130-
/O.CAN.KLSX.WS.W.0001.000000T0000Z-200112T0600Z/
Knox MO-Lewis MO-Shelby MO-
625 PM CST Sat Jan 11 2020

...WINTER STORM WARNING IS CANCELLED...

Light snow may linger for another hour or so, but the accumulating
snow has ended over portions of northeast Missouri. Motorists 
should be prepared for slick travel conditions due to lingering 
snow and ice on untreated roads, especially on bridges and 
overpasses.

$$

ILZ095-MOZ027-034-120600-
/O.CON.KLSX.WS.W.0001.000000T0000Z-200112T0600Z/
Adams IL-Marion MO-Monroe MO-
Including the cities of Hannibal and Quincy
625 PM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow and sleet. Additional snow accumulations of 1
  to 2 inches. Winds gusting as high as 30 mph.
  

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Motorists should be prepared for slick
  travel conditions due to snow and ice on untreated roads, 
  especially on bridges and overpasses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and/or ice are expected. Strong winds are also possible. If
travel is necessary, make sure to exercise extreme caution. Begin
your travel with a full tank of gas, and carry a winter storm kit
which includes a shovel, flashlight, cellphone, food and water,
and blankets of extra warm clothing.

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.

&&

$$

ILZ058-059-096>102-MOZ035-036-041-042-047>052-059>065-072-073-
120600-
/O.CON.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Audrain MO-Boone MO-Brown IL-Calhoun IL-Callaway MO-Cole MO-
Crawford MO-Franklin MO-Gasconade MO-Greene IL-Jefferson MO-
Jersey IL-Lincoln MO-Macoupin IL-Madison IL-Moniteau MO-Monroe IL-
Montgomery MO-Osage MO-Pike IL-Pike MO-Ralls MO-Saint Charles MO-
Saint Clair IL-Saint Louis City MO-Saint Louis MO-Warren MO-
Washington MO-
Including the cities of Alton, Belleville, Bowling Green, 
Cahokia, Columbia, Edwardsville, Fulton, Jefferson City, Mexico, 
Mount Sterling, Pittsfield, Saint Charles, Saint Louis, Sullivan,
Union, and Washington
625 PM CST Sat Jan 11 2020

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

* WHAT...Wet snow and sleet. Additional snow accumulations of up 
  to one inch. Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Motorists should be prepared for slick
  travel conditions due to snow and ice on untreated roads, 
  especially on bridges and overpasses.

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.

&&

$$

Tilly

173 
WWUS43 KLSX 120143
WSWLSX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Saint Louis MO
743 PM CST Sat Jan 11 2020

ILZ095-MOZ027-034-120245-
/O.CAN.KLSX.WS.W.0001.000000T0000Z-200112T0600Z/
Adams IL-Marion MO-Monroe MO-
Including the cities of Hannibal and Quincy
743 PM CST Sat Jan 11 2020

...WINTER STORM WARNING IS CANCELLED...

Light snow may linger for another hour or so, but the accumulating
snow has ended over portions of northeast Missouri. Motorists 
should be prepared for slick travel conditions due to lingering 
snow and ice on untreated roads, especially on bridges and 
overpasses.

$$

ILZ096-097-MOZ035-036-041-042-047>051-059-072-073-120245-
/O.CAN.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Audrain MO-Boone MO-Brown IL-Callaway MO-Cole MO-Crawford MO-
Gasconade MO-Moniteau MO-Montgomery MO-Osage MO-Pike IL-Pike MO-
Ralls MO-Washington MO-
Including the cities of Bowling Green, Columbia, Fulton, 
Jefferson City, Mexico, Mount Sterling, and Pittsfield
743 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow may linger for another hour or so, but the accumulating
snow has ended over portions of northeast Missouri. Motorists 
should be prepared for slick travel conditions due to lingering 
snow and ice on untreated roads, especially on bridges and 
overpasses.

$$

ILZ058-059-098>102-MOZ052-060>065-120600-
/O.CON.KLSX.WW.Y.0001.000000T0000Z-200112T0600Z/
Calhoun IL-Franklin MO-Greene IL-Jefferson MO-Jersey IL-
Lincoln MO-Macoupin IL-Madison IL-Monroe IL-Saint Charles MO-
Saint Clair IL-Saint Louis City MO-Saint Louis MO-Warren MO-
Including the cities of Alton, Belleville, Cahokia, Edwardsville,
Saint Charles, Saint Louis, Sullivan, Union, and Washington
743 PM CST Sat Jan 11 2020

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

* WHAT...Wet snow. Additional snow accumulations of up to one 
  inch. Winds gusting as high as 30 mph.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Motorists should be prepared for slick 
  travel conditions due to snow and ice on untreated roads, 
  especially on bridges and overpasses.

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.

&&

$$

Tilly

Area Forecast Discussion
National Weather Service Saint Louis MO
350 AM CST Fri Jan 10 2020

.SHORT TERM... (Through Late Saturday Night)
Issued at 350 AM CST Fri Jan 10 2020

Early this morning, an upper longwave TROF existed over the western
CONUS, resulting in SW flow aloft over our region.  The strong storm
system that has been the subject of much interest to our forecast
has come onshore, with the core of it moving through the Mexican
state of Sonora.  Ahead of this storm system, several weaker upper
level impulses were being kicked out ahead of it, through much of
the Lower-Mid Mississippi and Lower Ohio River Valleys.  These
impulses were operating in a broad WAA regime with rich moisture
through the column, with PWs in excess of 1 inch.  At the surface, a
cold front extended from western Illinois to near Quincy, through
northeast and into west-central Missouri. Numerous showers and a few
thunderstorms had developed south of the surface boundary and have
affected these areas for much of the night, with rainfall estimates
for most places between a one half and one inch.  A few pockets
appear to have received as much as 2 inches.  Temperatures south of
the front were quite warm for this time of year with readings in the
50s, with temperatures falling off into the upper 30s and lower 40s
behind the front in northeast and north-central Missouri.

(Today)

The center of the main storm system will begin to lift northeastward
today and into western Texas by early this evening, resulting in a
slight backing of flow aloft to more S-SW.  This, in turn, will
result in the surface front becoming quasi-stationary.  The current
main axis of showers and a few thunderstorms is expected to persist
through this morning for areas near and south and east of the STL
metro area with more scattered or lesser coverage for areas to the
north and west.  With a fresh wave of upper level impulses being
thrown our way towards sunset this afternoon, look for coverage of
showers to fill in across the entire forecast area, especially in
light of the backed flow aloft and hurling of even juicier Gulf of
Mexico air towards our region.  Temperature rises will be driven
largely by dewpoint rises south of the front, and with dewpoints
expected to rise to close to 60 degrees for many of these areas,
look for max temps into the lower 60s.  North of the front, little
movement of temps is expected with lower 40s, yet still too warm to
worry about wintry precipitation.

(Tonight)

The center of the main storm system will then track into central
Oklahoma tonight and the strong lift just ahead of it will develop
and drive a surface wave into southern IL that will drag the surface
cold front across much of the forecast area.  The richest moisture
of the event will move through our region at this time with PWs
approaching 1.5" and surface dewpoints just shy of 60F.  The advance
of the cold front through our region is expected to develop a line
of thunderstorms that will move through primarily from 01z in
central MO to 06z in the STL metro area to 09z in southern IL.  The
line of storms will be capable of isolated damaging wind gusts and
possibly tornadoes as it moves through in what will be a high shear,
low instability environment and where it can be surface based, the
severe threat will exist.  There is a lesser threat for large hail
with most hail likely being sub-severe in our area.

The advance of the cold front will drag in much colder air at the
surface behind the line of storms, but with warm air aloft much
slower to recede due to the wrapped up nature of the storm system
and that the main storm center will still be upstream, look for rain
to transition to freezing rain and sleet for areas of northeast MO
and this wintry precipitation is expected to advance into central MO
and west-central IL by sunrise where surface temps fall to 32F or
below.

(Saturday)

The storm center is then expected to track to near the Mid-
Mississippi River by sunset Saturday.  There is increasing evidence
of a break in the precipitation occurring some distance behind the
surface cold front late Friday night until onset of another round of
precipitation occurs with the advent of the main storm center later
on Saturday morning.  During this interlude, precipitation may
continue but will probably be more of a light drizzle or spotty
light precipitation associated with some loss of cloud ice, and
therefore favors a more prolonged period of freezing rain and sleet
for areas behind the front where temperatures have already dropped
below 32F:  namely northeast and central MO and west-central IL.
Cloud ice will then return by late Saturday morning or midday
Saturday to many areas and at this point, precipitation for
northeast and central MO and west-central IL should transition to
all snow with snow then advancing into the STL metro area and
southeast MO by mid-late Saturday afternoon as temps fall through
the 30s there.  Edged PoPs a bit higher Saturday night with good
agreement amongst guidance of placement of main upper system still
over or upstream of much of the forecast area at 00z/Sun with an
exit of snow then expected by midnight Saturday night.

(Summary)

Snow totals have been cut significantly for northeast MO where loss
of cloud ice between main precipitation episodes occurs and keeps
freezing rain and sleet.  Snow totals of 2-3" now expected for the
previous Watch area with up to a third of an inch of sleet and
between two and three tenths of an inch of ice from freezing rain.
This all adds up to needing a Warning.

Elsewhere in west-central IL and northeast and central MO to the far
western reaches of the STL Metro area, an Advisory will be issued
primarily for ice from freezing rain accretion and some limited snow
accums of 1-2" and up to a tenth of an inch of sleet.

For most of the STL metro area and areas south and east, no
headlines for now with a dusting of snow expected, minimal sleet and
little to no ice.

Rainfall totals still look stout with much of the rainfall occurring
tonight, with 2 to 4 inches of additional rainfall expected.  The
existing Flash Flood Watch looks good and no changes made.

TES

.LONG TERM... (Sunday through Thursday)
Issued at 350 AM CST Fri Jan 10 2020

Above normal temps look to continue through Wednesday with periodic
light precipitation possibilities with colder air attempting to work
in late week.

TES

&&

.AVIATION...  (For the 06z TAFs through 06z Friday Night)
Issued at 1140 PM CST Thu Jan 9 2020

Cigs expected to remain somewhat steady overnight, then lower into
IFR range late Fri morning. Cigs are expected to remain IFR thru
the end of the TAF period. However, brief periods of low MVFR are
possible in showers and during any lull into the afternoon hours.
Rain should spread north during the day Fri, but remain fairly
light. The heavy rain, with TS, is expected to spread east into
the area during the late afternoon and evening hours.

SPECIFICS FOR KSTL: Rain continues into Fri with cigs expected to
lower late Fri morning. Brief lulls in rain are likely late Fri
morning into the early afternoon hours, but this will need to be a
short term forecast issue. Otherwise, heavy rain and thunderstorms
are expected to return Fri evening and overnight.

Tilly

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Winter Weather Advisory from midnight tonight to midnight CST
     Saturday night for Audrain MO-Boone MO-Callaway MO-Cole MO-
     Crawford MO-Franklin MO-Gasconade MO-Lincoln MO-Moniteau MO-
     Montgomery MO-Osage MO-Pike MO-Ralls MO-Warren MO.

     Flash Flood Watch through Saturday morning for Crawford MO-
     Franklin MO-Gasconade MO-Iron MO-Jefferson MO-Lincoln MO-
     Madison MO-Reynolds MO-Saint Charles MO-Saint Francois MO-
     Saint Louis City MO-Saint Louis MO-Sainte Genevieve MO-
     Warren MO-Washington MO.

     Flash Flood Watch through late tonight for Audrain MO-Boone MO-
     Callaway MO-Cole MO-Marion MO-Moniteau MO-Monroe MO-
     Montgomery MO-Osage MO-Pike MO-Ralls MO.

     Winter Storm Warning from 6 PM this evening to midnight CST
     Saturday night for Knox MO-Lewis MO-Marion MO-Monroe MO-
     Shelby MO.

IL...Winter Weather Advisory from midnight tonight to midnight CST
     Saturday night for Brown IL-Pike IL.

     Flash Flood Watch through Saturday morning for Bond IL-Calhoun
     IL-Clinton IL-Fayette IL-Greene IL-Jersey IL-Macoupin IL-
     Madison IL-Marion IL-Monroe IL-Montgomery IL-Randolph IL-
     Saint Clair IL-Washington IL.

     Flash Flood Watch through late tonight for Adams IL-Brown IL-
     Pike IL.

     Winter Storm Warning from 6 PM this evening to midnight CST
     Saturday night for Adams IL.

&&

WFO LSX

Hazardous Weather Outlook
National Weather Service Saint Louis MO
432 PM CST Thu Jan 9 2020

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-101200-
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-
432 PM CST Thu Jan 9 2020

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

.DAY ONE...Tonight.

Isolated thunderstorms are possible late tonight across portions of
central and southeast Missouri as well as southwest Illinois.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Multiple rounds of rainfall are expected with total rainfall amounts
of 2-4 inches forecast across the area. Locally higher amounts are
possible. The period of heaviest rainfall should be Friday night
and Saturday morning. A flash flood watch is in effect for a large
portion of the area for Friday through Saturday morning. See the
watch product for additional details.

Isolated to scattered thunderstorms are forecast Friday and Friday
night across parts of the area. Some of these storms may be severe
Friday and Friday night, mainly across portions of southeast
Missouri. Large hail is the primary threat Friday afternoon and
evening turning to a damaging wind and isolated tornado threat
overnight Friday night.

Accumulating snow and ice is likely across northeast and central
Missouri as well as west central Illinois Friday night through
Saturday evening. A winter storm watch is in effect for parts of
northeast Missouri and west central Illinois Friday night through
Saturday evening. See the watch product for additional details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

Tilly