Flash Flood Watch 4, NWS St. Louis, MO

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

335 
WGUS63 KLSX 212238
FFALSX

Flood Watch
National Weather Service Saint Louis MO
538 PM CDT Tue May 21 2019


ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-220500-
/O.CON.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Chester, Sparta, Quincy, Mount Sterling, Pittsfield, Alton, 
Edwardsville, Belleville, Cahokia, Hannibal, Bowling Green, 
Columbia, Mexico, Jefferson City, Fulton, Saint Charles, 
Washington, Union, Sullivan, Saint Louis, and Farmington
538 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Bond IL...Brown IL... 
  Calhoun IL...Clinton IL...Fayette IL...Greene IL...Jersey IL...
   Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery 
  IL...Pike IL...Randolph IL...Saint Clair IL and Washington IL. 
  In Missouri...Audrain MO...Boone MO...Callaway MO...Cole MO... 
  Crawford MO...Franklin MO...Gasconade MO...Iron MO...Jefferson 
  MO...Knox MO...Lewis MO...Lincoln MO...Madison MO...Marion 
  MO...Moniteau MO...Monroe MO...Montgomery MO...Osage MO...Pike 
  MO...Ralls MO...Reynolds MO...Saint Charles MO...Saint 
  Francois MO...Saint Louis City MO...Saint Louis MO...Sainte 
  Genevieve MO...Shelby MO...Warren MO and Washington MO. 

* until midnight CDT tonight

* Locally heavy rainfall from a line of storms that will move
  across the area through early this evening could produce flash
  flooding.

* Heavy rainfall will result in flooding of low lying or poor 
  drainage areas...and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch is advanced notice that conditions are
favorable that may lead to flash flooding. People in the Watch
area, especially in flood prone areas, should use this time to
make preparations just in case. Stay informed, and be ready for
quick action if flooding is observed or if a Flash Flood Warning
is issued.

&&

$$

Britt

084 
WGUS63 KLSX 220109
FFALSX

Flood Watch
National Weather Service Saint Louis MO
809 PM CDT Tue May 21 2019


MOZ018-019-026-027-034-035-041-042-047>050-220215-
/O.CAN.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-
Including the cities of Hannibal, Columbia, Mexico, 
Jefferson City, and Fulton
809 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Missouri and
northeast Missouri has been cancelled. Thunderstorms have moved
out the watch this evening ending the flood threat.


$$

ILZ058>060-064-065-069-070-074-079-095>102-MOZ036-051-052-059>065-
072>075-084-085-099-220500-
/O.CON.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Pike MO-
Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-
Iron MO-Madison MO-Reynolds MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Chester, Sparta, Quincy, Mount Sterling, Pittsfield, Alton, 
Edwardsville, Belleville, Cahokia, Bowling Green, Saint Charles, 
Washington, Union, Sullivan, Saint Louis, and Farmington
809 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Bond IL...Brown IL... 
  Calhoun IL...Clinton IL...Fayette IL...Greene IL...Jersey IL...
   Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery 
  IL...Pike IL...Randolph IL...Saint Clair IL and Washington IL. 
  In Missouri...Crawford MO...Franklin MO...Gasconade MO...Iron 
  MO...Jefferson MO...Lincoln MO...Madison MO...Montgomery MO... 
  Pike MO...Reynolds MO...Saint Charles MO...Saint Francois MO...
   Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO... 
  Warren MO and Washington MO. 

* until midnight CDT tonight

* Locally heavy rainfall from thunderstorms will continue to pose
  a threat for flash flooding into the late evening hours.

* Heavy rainfall will result in flooding of low lying or poor 
  drainage areas...and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch is advanced notice that conditions are
favorable that may lead to flash flooding. People in the Watch
area, especially in flood prone areas, should use this time to
make preparations just in case. Stay informed, and be ready for
quick action if flooding is observed or if a Flash Flood Warning
is issued.

&&

$$

Britt

746 
WGUS63 KLSX 220248
FFALSX

Flood Watch
National Weather Service Saint Louis MO
948 PM CDT Tue May 21 2019


ILZ095-MOZ036-051-052-059-060-062-072-220400-
/O.CAN.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Adams IL-Pike MO-Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-
Franklin MO-Crawford MO-
Including the cities of Quincy, Bowling Green, Washington, Union,
and Sullivan
948 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of west central Illinois and
Missouri has been cancelled. 

$$

ILZ058>060-064-065-069-070-074-079-096>102-MOZ061-063>065-073>075-
084-085-099-220500-
/O.CON.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Washington MO-
Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-
Reynolds MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Chester, Sparta, Mount Sterling, Pittsfield, Alton, Edwardsville,
Belleville, Cahokia, Saint Charles, Saint Louis, and Farmington
948 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Brown IL...Calhoun IL... 
  Clinton IL...Fayette IL...Greene IL...Jersey IL...Macoupin 
  IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Pike 
  IL...Randolph IL...Saint Clair IL and Washington IL. In 
  Missouri...Iron MO...Jefferson MO...Madison MO...Reynolds MO...
   Saint Charles MO...Saint Francois MO...Saint Louis City MO... 
  Saint Louis MO...Sainte Genevieve MO and Washington MO. 

* until midnight CDT tonight

* Locally heavy rainfall from thunderstorms will continue to 
  pose a threat for flash flooding into the late evening hours. 

* Heavy rainfall will result in flooding of low lying or poor 
  drainage areas...and ultimately dangerous flash flooding on 
  smaller creeks and streams. Significant rises on larger 
  streams and rivers will also be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch is advanced notice that conditions are
favorable that may lead to flash flooding. People in the Watch
area, especially in flood prone areas, should use this time to
make preparations just in case. Stay informed, and be ready for
quick action if flooding is observed or if a Flash Flood Warning
is issued.

&&

$$

Gosselin

423 
WGUS63 KLSX 220431
FFALSX

Flood Watch
National Weather Service Saint Louis MO
1131 PM CDT Tue May 21 2019


ILZ058>060-064-065-069-070-074-079-096>102-MOZ061-063>065-073>075-
084-085-099-220545-
/O.EXP.KLSX.FF.A.0004.000000T0000Z-190522T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Washington MO-
Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-
Reynolds MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Chester, Sparta, Mount Sterling, Pittsfield, Alton, Edwardsville,
Belleville, Cahokia, Saint Charles, Saint Louis, and Farmington
1131 PM CDT Tue May 21 2019

...FLASH FLOOD WATCH WILL EXPIRE AT MIDNIGHT CDT TONIGHT...

The Flash Flood Watch for portions of Illinois and Missouri will
expire at midnight CDT tonight. The threat for showers and
thunderstorms will shift east of the area over the next couple of
hours.

$$

Gosselin

Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1255 AM CDT Tue May 21 2019

.UPDATE...
Issued at 945 PM CDT Mon May 20 2019

Grids have been updated to better reflect the spatial extent
(central into NE MO) and character (SHRA with embedded TSRA) of
precipitation across the western part of the LSX CWA.

Kanofsky

&&

.SHORT TERM...  (Through Late Tuesday Night)
Issued at 326 PM CDT Mon May 20 2019

Elevated convection will spread eastward into our forecast area
later this evening and overnight as a strong southerly low level jet
brings relatively strong low level warm air advection, theta-e
advection and moisture convergence particularly to northeast and
central MO into west central IL where the highest QPF is expected.
Some locally heavy rainfall is possible in this area. The surface
wind will actually strengthen late tonight as the surface
pressure gradient tightens between the surface ridge over the
Great Lakes region and the developing surface low over the OK
Panhandle region. Will get a break in the convection late Tuesday
morning and early afternoon, then a line of severe convection will
move rapidly eastward through our forecast area late Tuesday
afternoon and evening as a warm front lifts northward through our
region with increasing surface dew points and instability along
and south of the front while a surface trough...dry line
approaches from the west. There will be strong low-mid level wind
shear due to an 80 kt mid level wind max east-southeast of the
negatively tilted upper level trough/low along with at least
modest instability. The primary threats will be damaging winds and
tornadoes. Even outside of the storms the winds will be very
strong and gusty Tuesday afternoon and early evening. Convection
should weaken late Tuesday night, but will continue across
southeast MO and southwest IL.

GKS

.LONG TERM...  (Wednesday through Next Monday)
Issued at 326 PM CDT Mon May 20 2019

Warmer temperatures are forecast for Wednesday as upper level
heights slowly rise coupled with south/southwest surface/low
level winds. Another round of convection is likely Wednesday night
into Thursday morning along a weak cold front which will drop
southeastward into our forecast area. It looks like the highest
chance for showers/storms will be across northeast MO and west
central IL. The warming trend will continue as an upper level
ridge builds into MO and IL from the southeastern US. Northeast MO
and west central IL will be the most likely area for convection
Friday and into the weekend as this upper level ridge flattens
some with weak synoptic fronts or thunderstorm outflow boundaries
sagging southward into this area along with weak "ridge runner"
shortwaves over-topping the upper level ridge in this area.

GKS

&&

.AVIATION...  (For the 06z TAFs through 06z Tuesday Night)
Issued at 1211 AM CDT Tue May 21 2019

SPECIFICS FOR KCOU, KUIN: A broad area of rain with scattered
embedded thunderstorms was affecting KCOU and KUIN at TAF
issuance. Rain will continue at both terminals until the parent
thunderstorm complex has moved farther away from the region. After
a break in the rain after 21/14z, another line of TSRA is
expected to develop and move through the terminals after 21/19z.
Winds will be gusty even outside of thunderstorms, and both the
wind speeds and the wind gusts will tend to increase with time.
Initially VFR ceilings are expected to fall to MVFR at both
terminals by 21/12z.

SPECIFICS FOR KSTL, KSUS, KCPS: The northern end of a line of
thunderstorms was located over central MO at TAF issuance. This
line will continue moving eastward over the next few hours,
accompanied by a broader area of SHRA with scattered embedded
TSRA. Winds will be gusty outside of the thunderstorms, and the
wind speeds and gusts will tend to increase with time during the
valid TAF period because wind speeds aloft will be increasing.
After a break in the rain during the day, another line of TSRA is
expected to develop and move through the terminals after 21/22z.

Kanofsky

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...None.
IL...None.
&&

WFO LSX

Hazardous Weather Outlook
National Weather Service Saint Louis MO
352 PM CDT Mon May 20 2019

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-212100-
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-
352 PM CDT Mon May 20 2019

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

.DAY ONE...Tonight.

Thunderstorms are likely tonight across parts of the area...mainly
across central and northeast Missouri and west central Illinois.

Major river flooding is ongoing along portions of the Illinois
River.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Major river flooding will continue along portions of the Illinois
River, and is forecast to reach near major at Saverton on the
Mississippi River.

Severe thunderstorms are expected late Tuesday afternoon and
evening. Damaging winds and tornadoes are the primary threat.

The chance for thunderstorms will continue through Sunday across
parts of our area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

GKS

Special Weather Statement
National Weather Service St Louis MO
1225 AM CDT Tue May 21 2019

MOZ059-062-072>074-084-099-210630-
Gasconade MO-Reynolds MO-Washington MO-Franklin MO-Iron MO-
Crawford MO-St. Francois MO-
1225 AM CDT Tue May 21 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN IRON...CRAWFORD...
NORTHWESTERN REYNOLDS...WASHINGTON...FRANKLIN...SOUTHERN GASCONADE
AND WESTERN ST. FRANCOIS COUNTIES UNTIL 130 AM CDT...

At 1225 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles north of St. James to 6 miles northwest
of Salem to near Licking. Movement was northeast at 55 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Cherryville around 1250 AM CDT.
  Oak Grove around 1255 AM CDT.
  Sullivan, Miramiguoa Park and Beaufort around 100 AM CDT.
  Union, St. Clair, Viburnum, Parkway and Bixby around 110 AM CDT.
  Courtois around 115 AM CDT.
  Potosi, Villa Ridge, Mineral Point and Old Mines around 120 AM
  CDT.
  Gray Summit around 125 AM CDT.
  Pacific around 130 AM CDT.

Other locations impacted by these storms include Belgrade, Noser
Mill, Japan, Blackwell, Stanton, Cadet, Caledonia, Granite,
Robertsville and Catawissa.

This includes Interstate 44 in Missouri between exits 203 and 257.

This also includes Washington State Park, Onondaga Cave State Park,
Elephant Rocks State Park, Dillard Mill Historic Site, Robertsville
State Park, and Meramec State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 3750 9131 3759 9131 3759 9116 3769 9115
      3770 9131 3779 9131 3779 9153 3815 9153
      3815 9164 3828 9164 3854 9090 3862 9074
      3821 9078 3809 9068 3810 9065 3806 9062
      3764 9064 3750 9124
TIME...MOT...LOC 0525Z 244DEG 46KT 3814 9165 3773 9161 3745 9178

Tilly

Special Weather Statement
National Weather Service St Louis MO
132 AM CDT Tue May 21 2019

ILZ102-MOZ061-063>065-074-075-210715-
Monroe IL-St. Louis MO-St. Charles MO-Jefferson MO-St. Louis City MO-
St. Francois MO-Ste. Genevieve MO-
132 AM CDT Tue May 21 2019

...SIGNIFICANT WEATHER ADVISORY FOR MONROE...ST. CHARLES...
JEFFERSON...WESTERN STE. GENEVIEVE...ST. LOUIS AND ST. FRANCOIS
COUNTIES AND ST. LOUIS CITY UNTIL 215 AM CDT...

At 131 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Dutzow to near Richwoods to near Oates.
Movement was northeast at 50 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Augusta around 135 AM CDT.
  New Melle around 140 AM CDT.
  De Soto, Cedar Hill Lakes and Defiance around 145 AM CDT.
  Wildwood, Lake St. Louis, Hillsboro, Spirit of St. Louis Airport
  and Weldon Spring Heights around 150 AM CDT.
  O'Fallon, Dardenne Prairie, Weldon Spring, Cottleville, Clarkson
  Valley, Iron Mountain Lake and Iron Mountain around 155 AM CDT.
  St. Peters, Chesterfield, Festus, Town and Country, Pevely,
  Crystal City, Herculaneum, Bismarck, Antonia and Harvester around
  200 AM CDT.
  St. Charles, Maryland Heights, Arnold, Leadwood, Barnhart, Park
  Hills, Valmeyer, Champ and Imperial around 205 AM CDT.
  Farmington, Overland, St. Ann, Bridgeton, Bonne Terre, Desloge,
  Woodson Terrace, Lambert-St. Louis International Airport, Lambert
  Field and Breckenridge Hills around 210 AM CDT.

Other locations impacted by these storms include Blackwell,
Madonnaville, Chalfin Bridge, Fults, New Hanover, Oermann,
Burksville, Monroe City, Peerless Park and Frankclay.

This includes the following highways...
 Interstate 44 in Missouri between exits 261 and 277.
 Interstate 55 in Missouri between exits 154 and 191.
 Interstate 70 in Missouri between exits 217 and 231.

This also includes Babler Memorial State Park, St. Joe State Park,
St. Francois State Park, Scott Joplin Historic Site, Route 66 State
Park, Hawn State Park, Castlewood State Park, Mastodon Historic Site,
Sandy Creek Covered Bridge Historic Site, Missouri Mines Historic
Site, Gov. Dunklin's Grave Historic Site, and First Missouri State
Capitol Historic Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 3808 9064 3809 9068 3820 9078 3864 9073
      3859 9078 3854 9094 3871 9096 3894 9034
      3886 9014 3881 9012 3872 9021 3862 9018
      3852 9026 3833 9005 3811 9013 3809 9021
      3807 9014 3776 9022 3765 9065
TIME...MOT...LOC 0631Z 241DEG 44KT 3859 9096 3815 9080 3760 9099

Tilly

Special Weather Statement
National Weather Service St Louis MO
214 AM CDT Tue May 21 2019

ILZ079-100>102-MOZ061-063-064-074-075-210815-
Randolph IL-St. Clair IL-Madison IL-Monroe IL-St. Louis MO-
St. Charles MO-St. Louis City MO-St. Francois MO-Ste. Genevieve MO-
214 AM CDT Tue May 21 2019

...SIGNIFICANT WEATHER ADVISORY FOR MONROE...MADISON...RANDOLPH AND
ST. CLAIR COUNTIES IN SOUTHWESTERN ILLINOIS...NORTHEASTERN ST.
CHARLES COUNTY IN EAST CENTRAL MISSOURI...STE. GENEVIEVE COUNTY IN
SOUTHEASTERN MISSOURI...ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI AND
CENTRAL ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI AND ST. LOUIS
CITY UNTIL 315 AM CDT...

At 214 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Bridgeton to near Fountain to 6 miles
southwest of Weingarten. Movement was east at 45 mph.

Winds in excess of 40 mph will be possible with these storms.

Strong thunderstorms will be near...
  Florissant, Berkeley, Bel-Ridge, Kinloch, Calverton Park and
  Bellerive around 220 AM CDT.
  Ferguson, Jennings, Waterloo, Dellwood, Normandy, Cool Valley,
  Moline Acres, Country Club Hills, Norwood Court and Pasadena Hills
  around 225 AM CDT.
  Bellefontaine Neighbors, Black Jack, Millstadt, Riverview, Spanish
  Lake and Glasgow Village around 230 AM CDT.
  St. Louis, Granite City, Alton, Godfrey, Ste. Genevieve, Madison,
  East Alton and Smithton around 235 AM CDT.
  Wood River, Pontoon Beach, Freeburg, South Roxana, Roxana,
  Hartford, St. Mary and Rosewood Heights around 240 AM CDT.
  Bethalto and New Athens around 245 AM CDT.
  Edwardsville, Chester, Mascoutah and Dorsey around 250 AM CDT.
  Glen Carbon, Bremen, Carpenter and Prairietown around 255 AM CDT.

Other locations impacted by these storms include Sauget, Roots,
Prairie, Eden, New Palestine, Fults, New Hanover, Minnith, Burksville
and Ruma.

This includes the following highways...
 Interstate 70 in Illinois between exits 21 and 30.
 Interstate 55 in Illinois between exits 23 and 37.
 Interstate 64 in Illinois between exits 9 and 27.
 Interstate 44 in Missouri between exits 276 and 277.
 Interstate 55 in Missouri between exits 141 and 162.
 Interstate 70 in Missouri between exits 228 and 231.

This also includes Scott Joplin Historic Site, Hawn State Park, Felix
Valle House State Park, Confluence State Park, First Missouri State
Capitol Historic Site, and Horseshoe Lake State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 3795 8960 3781 8968 3791 8984 3778 9003
      3775 9041 3806 9038 3812 9025 3824 9036
      3845 9034 3846 9041 3885 9054 3894 9034
      3892 9028 3896 9027 3900 9019 3900 8964
      3866 8959 3865 8971 3824 8971 3822 8959
TIME...MOT...LOC 0714Z 258DEG 39KT 3880 9044 3833 9028 3784 9032

Tilly

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
234 AM CDT TUE MAY 21 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0210 AM     TSTM WND GST     2 E MARYLAND HEIGHTS    38.72N 90.44W
05/21/2019  E35 MPH          ST. LOUIS          MO   BROADCAST MEDIA

            FROM KTVI.

&&

TILLY

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
300 AM CDT TUE MAY 21 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0155 AM     TSTM WND GST     1 NE SAINT PETERS       38.79N 90.59W
05/21/2019  E35 MPH          ST. CHARLES        MO   PUBLIC

&&

TILLY

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
301 AM CDT TUE MAY 21 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0125 AM     TSTM WND GST     UNION                   38.45N 91.01W
05/21/2019  E40 MPH          FRANKLIN           MO   PUBLIC

&&

TILLY