Alert archive / Missouri / Flash Flood Watches in 2018

Flash Flood Watch 1, NWS St. Louis, MO

September 6, 201817 counties in Illinois; 29 counties in Missouri

NWS St. Louis, MO issued this flash flood watch at Sep 6, 2018, 3:21 AM CDT for 17 counties in Illinois; 29 counties in Missouri. It took effect at Sep 6, 2018, 12:07 PM CDT. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued
Sep 6, 2018, 3:21 AM CDT (08:21 UTC)
In effect from
Sep 6, 2018, 12:07 PM CDT
Expired
Sep 8, 2018, 3:15 PM CDT
In force
51 hr
Issued by
NWS St. Louis, MO
Flood severity
None
All 46 counties

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

The radar

The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 08:21 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, 8.4 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2018-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 528 joules per kilogram.LCLLFCEL10008507005003002001001 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 2018-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 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
528 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1869 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

848 
WGUS63 KLSX 060821
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Saint Louis MO
321 AM CDT Thu Sep 6 2018

ILZ058>060-064-065-069-070-074-095>102-MOZ018-019-026-027-034>036-
041-042-047>052-059>065-062200-
/O.NEW.KLSX.FF.A.0001.180907T0600Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington 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-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Quincy, Mount Sterling, Pittsfield, Alton, Edwardsville, 
Belleville, Cahokia, Hannibal, Bowling Green, Columbia, Mexico, 
Jefferson City, Fulton, Saint Charles, Washington, Union, 
Sullivan, and Saint Louis
321 AM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

The National Weather Service in Saint Louis has issued a

* Flash Flood Watch 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...Saint Clair IL and 
  Washington IL. In Missouri...Audrain MO...Boone MO...Callaway 
  MO...Cole MO...Franklin MO...Gasconade MO...Jefferson MO... 
  Knox MO...Lewis MO...Lincoln MO...Marion MO...Moniteau MO... 
  Monroe MO...Montgomery MO...Osage MO...Pike MO...Ralls MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO... 
  Shelby MO and Warren MO. 

* From late tonight through Sunday morning

* The remnants of tropical depression Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting late tonight and continuing into the
  weekend. Rainfall amounts of 3 to 6 inches are likely with
  locally higher amounts.

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-062200-
/O.NEW.KLSX.FF.A.0001.180907T1800Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
321 AM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY MORNING...

The National Weather Service in Saint Louis has issued a

* Flash Flood Watch for portions of southwest Illinois and 
  Missouri...including the following counties...in southwest 
  Illinois...Randolph IL. In Missouri...Crawford MO...Iron MO... 
  Madison MO...Reynolds MO...Saint Francois MO...Sainte 
  Genevieve MO and Washington MO. 

* from Friday afternoon through Sunday morning

* The remnants of tropical depression Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting Friday afternoon and continuing into the 
  weekend. Rainfall amounts of 3 to 6 inches are likely with 
  locally higher amounts.

* 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.

&&

$$

Carney
9 follow-up statements
488 
WGUS63 KLSX 061707
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Saint Louis MO
1207 PM CDT Thu Sep 6 2018


ILZ058-059-095>099-MOZ018-019-026-027-034>036-041-042-050>052-
070515-
/O.EXT.KLSX.FF.A.0001.180906T1707Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Quincy, Mount Sterling, Pittsfield, 
Hannibal, Bowling Green, Columbia, Mexico, and Fulton
1207 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch is now in effect for

* Portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Brown IL...Calhoun IL... 
  Greene IL...Jersey IL...Macoupin IL and Pike IL. In Missouri... 
  Audrain MO...Boone MO...Callaway MO...Knox MO...Lewis MO... 
  Lincoln MO...Marion MO...Monroe MO...Montgomery MO...Pike MO... 
  Ralls MO and Shelby MO. 

* Through Sunday morning

* The remnants of tropical depression Gordon will interact with 
  a cold front stalled across Missouri and Illinois. Rich 
  tropical moisture from Gordon will produce very heavy rainfall 
  across the watch area starting late tonight and continuing 
  into the weekend. Rainfall amounts of 3 to 6 inches are likely 
  with locally higher amounts. 

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-070515-
/O.CON.KLSX.FF.A.0001.180907T0600Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
1207 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY MORNING...

The Flash Flood Watch continues for

* Portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint Clair
  IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* From late tonight through Sunday morning

* The remnants of tropical depression Gordon will interact with 
  a cold front stalled across Missouri and Illinois. Rich 
  tropical moisture from Gordon will produce very heavy rainfall 
  across the watch area starting late tonight and continuing 
  into the weekend. Rainfall amounts of 3 to 6 inches are likely 
  with locally higher amounts. 

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-070515-
/O.CON.KLSX.FF.A.0001.180907T1800Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
1207 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* Portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* From Friday afternoon through Sunday morning

* The remnants of tropical depression Gordon will interact with 
  a cold front stalled across Missouri and Illinois. Rich 
  tropical moisture from Gordon will produce very heavy rainfall 
  across the watch area starting Friday afternoon and continuing 
  into the weekend. Rainfall amounts of 3 to 6 inches are likely 
  with locally higher amounts. 

* 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
150 
WGUS63 KLSX 062053
FFALSX

Flood Watch
National Weather Service Saint Louis MO
353 PM CDT Thu Sep 6 2018

ILZ058-059-095>099-MOZ018-019-026-027-034>036-041-042-050>052-
070900-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Quincy, Mount Sterling, Pittsfield, 
Hannibal, Bowling Green, Columbia, Mexico, and Fulton
353 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Brown IL...Calhoun IL... 
  Greene IL...Jersey IL...Macoupin IL and Pike IL. In Missouri...
   Audrain MO...Boone MO...Callaway MO...Knox MO...Lewis MO... 
  Lincoln MO...Marion MO...Monroe MO...Montgomery MO...Pike MO...
   Ralls MO and Shelby MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting late tonight and continuing into the
  weekend. Rainfall amounts of 3 to 6 inches are likely with
  locally higher amounts. The heaviest rain in this area will
  likely occur on Friday morning and afternoon.

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-070900-
/O.CON.KLSX.FF.A.0001.180907T0600Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
353 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT FRIDAY
THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint 
  Clair IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* from 1 AM CDT Friday through Sunday morning

* The remnants of tropical depression Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting late tonight and continuing into the
  weekend. Rainfall amounts of 3 to 6 inches are likely with
  locally higher amounts. Very heavy rain is possible on both
  Friday morning and afternoon as well as Saturday. 

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-070900-
/O.CON.KLSX.FF.A.0001.180907T1800Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
353 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* from Friday afternoon through Sunday morning

* The remnants of tropical depression Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting Friday afternoon and continuing into the
  weekend. Rainfall amounts of 3 to 6 inches are likely with
  locally higher amounts. Heaviest rain in this area is most
  likely on Saturday.

* 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.

&&

$$

BSH
863 
WGUS63 KLSX 062055
FFALSX

Flood Watch
National Weather Service Saint Louis MO
355 PM CDT Thu Sep 6 2018

ILZ058-059-095>099-MOZ018-019-026-027-034>036-041-042-050>052-
070900-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Quincy, Mount Sterling, Pittsfield, 
Hannibal, Bowling Green, Columbia, Mexico, and Fulton
355 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Brown IL...Calhoun IL... 
  Greene IL...Jersey IL...Macoupin IL and Pike IL. In Missouri...
   Audrain MO...Boone MO...Callaway MO...Knox MO...Lewis MO... 
  Lincoln MO...Marion MO...Monroe MO...Montgomery MO...Pike MO...
   Ralls MO and Shelby MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a 
  cold front stalled across Missouri and Illinois. Rich tropical 
  moisture from Gordon will produce very heavy rainfall across 
  the watch area starting late tonight and continuing into the 
  weekend. Rainfall amounts of 3 to 6 inches are likely with 
  locally higher amounts. The heaviest rain in this area will 
  likely occur on Friday morning and afternoon. 

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-070900-
/O.CON.KLSX.FF.A.0001.180907T0600Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
355 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT FRIDAY
THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint 
  Clair IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* from 1 AM CDT Friday through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a 
  cold front stalled across Missouri and Illinois. Rich tropical 
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting late tonight and continuing into the 
  weekend. Rainfall amounts of 3 to 6 inches are likely with 
  locally higher amounts. Very heavy rain is possible on both 
  Friday morning and afternoon as well as Saturday. 

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-070900-
/O.CON.KLSX.FF.A.0001.180907T1800Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
355 PM CDT Thu Sep 6 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* from Friday afternoon through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a 
  cold front stalled across Missouri and Illinois. Rich tropical 
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting Friday afternoon and continuing into the 
  weekend. Rainfall amounts of 3 to 6 inches are likely with 
  locally higher amounts. Heaviest rain in this area is most 
  likely on Saturday.
  

* 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.

&&

$$

BSH
538 
WGUS63 KLSX 070839
FFALSX

Flood Watch
National Weather Service Saint Louis MO
339 AM CDT Fri Sep 7 2018

ILZ058-059-095>099-MOZ018-019-026-027-034>036-041-042-050>052-
072145-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Quincy, Mount Sterling, Pittsfield, 
Hannibal, Bowling Green, Columbia, Mexico, and Fulton
339 AM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Brown IL...Calhoun IL... 
  Greene IL...Jersey IL...Macoupin IL and Pike IL. In Missouri...
   Audrain MO...Boone MO...Callaway MO...Knox MO...Lewis MO... 
  Lincoln MO...Marion MO...Monroe MO...Montgomery MO...Pike MO...
   Ralls MO and Shelby MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area today through Saturday night. Additional rainfall
  amounts of 2 to 5 inches are likely with locally higher 
  amounts. The heaviest rain in this area will likely occur today 
  and tonight.

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-072145-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
339 AM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint 
  Clair IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area today through Saturday night. Additional rainfall
  amounts of 3 to 6 inches are likely with locally higher 
  amounts. Very heavy rain is possible on both Friday morning and 
  afternoon as well as Saturday. 

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-072145-
/O.CON.KLSX.FF.A.0001.180907T1800Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
339 AM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 PM CDT THIS
AFTERNOON THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* from 1 PM CDT this afternoon through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting Friday afternoon and continuing into
  Saturday. Additional rainfall amounts of 3 to 5 inches are 
  likely with locally higher amounts. Heaviest rain in this area 
  is most likely this afternoon and this evening.
 
* 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
254 
WGUS63 KLSX 072050
FFALSX

Flood Watch
National Weather Service Saint Louis MO
350 PM CDT Fri Sep 7 2018


ILZ058-059-095>099-MOZ018-019-026-027-034>036-041-042-050>052-
080900-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-
Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-
Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-
Including the cities of Quincy, Mount Sterling, Pittsfield, 
Hannibal, Bowling Green, Columbia, Mexico, and Fulton
350 PM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Adams IL...Brown IL...Calhoun IL... 
  Greene IL...Jersey IL...Macoupin IL and Pike IL. In Missouri...
   Audrain MO...Boone MO...Callaway MO...Knox MO...Lewis MO... 
  Lincoln MO...Marion MO...Monroe MO...Montgomery MO...Pike MO...
   Ralls MO and Shelby MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area today through Saturday night. Additional rainfall
  amounts of 2 to 5 inches are likely with locally higher amounts.
  The heaviest rain in this area will likely occur this afternoon
  and again and tomorrow morning.
  

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-080900-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
350 PM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area starting Friday afternoon and continuing into
  Saturday. Additional rainfall amounts of 3 to 5 inches are
  likely with locally higher amounts. The heaviest rain in this 
  area is most likely beginning late tonight. 

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-080900-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
350 PM CDT Fri Sep 7 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint 
  Clair IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will interact with a
  cold front stalled across Missouri and Illinois. Rich tropical
  moisture from Gordon will produce very heavy rainfall across the
  watch area today through Saturday night. Additional rainfall
  amounts of 3 to 5 inches are likely with locally higher 
  amounts. The heaviest rain in this area is most likely beginning
  late tonight. 

* 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.

&&

$$

BSH
206 
WGUS63 KLSX 080849
FFALSX

Flood Watch
National Weather Service Saint Louis MO
349 AM CDT Sat Sep 8 2018


ILZ095-096-MOZ018-019-026-027-081000-
/O.CAN.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Adams IL-Brown IL-Knox MO-Lewis MO-Shelby MO-Marion MO-
Including the cities of Quincy, Mount Sterling, and Hannibal
349 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of west central Illinois and
northeast Missouri has been cancelled. While additional rainfall
is expected overnight, the focus for heavy rainfall has shifted
to the south. Therefore, the threat for additional flash flooding
over far northeast Missouri and west-central Illinois has
dminished. Further south, additional heavy rain is expected to 
impact portions of east-central and southeast Missouri, as well 
as southwest Illinois. 

$$

ILZ058-059-097>099-MOZ034>036-041-042-050>052-082100-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Pike IL-Calhoun IL-Jersey IL-Monroe MO-
Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-
Lincoln MO-
Including the cities of Pittsfield, Bowling Green, Columbia, 
Mexico, and Fulton
349 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Calhoun IL...Greene IL...Jersey IL... 
  Macoupin IL and Pike IL. In Missouri...Audrain MO...Boone MO...
   Callaway MO...Lincoln MO...Monroe MO...Montgomery MO...Pike 
  MO and Ralls MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast and interact with a cold front stalled across
  Missouri and Illinois. Rich tropical moisture will produce
  additional heavy rainfall across the watch area through late
  Saturday evening. The greatest threat for heavy rainfall will 
  extend from east- central Missouri into portions of southwest 
  Illinois. Rainfall amounts of 1 to 3 inches are likely through 
  Saturday with locally higher amounts possible, especially in 
  Illinois. The heaviest rain in this area is still expected occur
  through Saturday morning.

* 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.

&&

$$

ILZ079-MOZ072>075-084-085-099-082100-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-Crawford MO-Washington MO-Saint Francois MO-
Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO-
Including the cities of Chester, Sparta, and Farmington
349 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of southwest Illinois and Missouri...including the 
  following counties...in southwest Illinois...Randolph IL. In 
  Missouri...Crawford MO...Iron MO...Madison MO...Reynolds MO... 
  Saint Francois MO...Sainte Genevieve MO and Washington MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast and interact with a cold front stalled across
  Missouri and Illinois. Rich tropical moisture will produce
  additional heavy rainfall across the watch area through Saturday
  night. The greatest threat for heavy rainfall will extend from
  east-central Missouri into portions of southwest Illinois.
  Rainfall amounts of 2 to 5 inches are likely through Saturday
  night with locally higher amounts possible. The heaviest rain in
  this area is still expected from Saturday morning through
  Saturday afternoon.

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ047>049-059>065-082100-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Moniteau MO-
Cole MO-Osage MO-Gasconade MO-Warren MO-Saint Charles MO-
Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, Jefferson City, 
Saint Charles, Washington, Union, Sullivan, and Saint Louis
349 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and Missouri...including the following 
  counties...in Illinois...Bond IL...Clinton IL...Fayette IL... 
  Madison IL...Marion IL...Monroe IL...Montgomery IL...Saint 
  Clair IL and Washington IL. In Missouri...Cole MO...Franklin 
  MO...Gasconade MO...Jefferson MO...Moniteau MO...Osage MO... 
  Saint Charles MO...Saint Louis City MO...Saint Louis MO and 
  Warren MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast and interact with a cold front stalled across
  Missouri and Illinois. Rich tropical moisture will produce
  additional heavy rainfall across the watch area through Saturday
  night. The greatest threat for heavy rainfall will extend from
  east-central Missouri into portions of southwest Illinois.
  Rainfall amounts of 2 to 5 inches are likely through Saturday
  night with locally higher amounts possible. The heaviest rain in
  this area is still expected from Saturday morning through
  Saturday afternoon.

* 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.

&&

$$

Maples
154 
WGUS63 KLSX 081356
FFALSX

Flood Watch
National Weather Service Saint Louis MO
856 AM CDT Sat Sep 8 2018

ILZ097-098-MOZ034>036-041-042-047>052-059>062-065-072>075-084-085-
099-081500-
/O.CAN.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pike IL-Calhoun IL-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-Jefferson MO-
Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-
Iron MO-Madison MO-Reynolds MO-
Including the cities of Pittsfield, Bowling Green, Columbia, 
Mexico, Jefferson City, Fulton, Saint Charles, Washington, Union,
Sullivan, and Farmington
856 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH IS CANCELLED...

Most of the remnants of Tropical Cyclone Gordon have moved east 
of the Mississippi River so the Flash Flood Watch for portions of
Illinois and Missouri has been cancelled. As Gordon moved through
the area overnight, it dropped well over 4 inches of rain across 
a large portion of the area.

$$

ILZ058-059-099-090200-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Jersey IL-
856 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* a portion of southwest Illinois...including the following 
  counties...Greene IL...Jersey IL and Macoupin IL. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast into Illinois. Rich tropical moisture will
  continue to produce additional heavy rainfall across the watch
  area through this evening. The greatest threat for heavy
  rainfall will remain across portions of southern Illinois. 
  Rainfall amounts of 1 to 2 inches are likely through Saturday 
  with locally higher amounts possible.

* 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.

&&

$$

ILZ079-090200-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph IL-
Including the cities of Chester and Sparta
856 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* a portion of southwest Illinois...including the following 
  county...Randolph IL. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast into Illinois. Rich tropical moisture will
  continue to produce additional heavy rainfall across the watch
  area through this evening. The greatest threat for heavy
  rainfall will remain across portions of southern Illinois. 
  Rainfall amounts of 1 to 2 inches are likely through Saturday 
  with locally higher amounts possible.

* 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.

&&

$$

ILZ060-064-065-069-070-074-100>102-MOZ063-064-090200-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-Madison IL-Saint Clair IL-Monroe IL-Saint Louis MO-
Saint Louis City MO-
Including the cities of Litchfield, Vandalia, Centralia, Salem, 
Alton, Edwardsville, Belleville, Cahokia, and Saint Louis
856 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* portions of Illinois and east central Missouri...including the 
  following counties...in Illinois...Bond IL...Clinton IL... 
  Fayette IL...Madison IL...Marion IL...Monroe IL...Montgomery 
  IL...Saint Clair IL and Washington IL. In east central 
  Missouri...Saint Louis City MO and Saint Louis MO. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast into Illinois. Rich tropical moisture will
  continue to produce additional heavy rainfall across the watch
  area through this evening. The greatest threat for heavy
  rainfall will remain across portions of southern Illinois. 
  Rainfall amounts of 1 to 4 inches are likely through Saturday 
  with locally higher amounts possible.

* 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.

&&

$$

BSH
206 
WGUS63 KLSX 081638
FFALSX

Flood Watch
National Weather Service Saint Louis MO
1138 AM CDT Sat Sep 8 2018

ILZ058-059-079-099>102-MOZ063-064-081745-
/O.CAN.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene IL-Macoupin IL-Randolph IL-Jersey IL-Madison IL-
Saint Clair IL-Monroe IL-Saint Louis MO-Saint Louis City MO-
Including the cities of Chester, Sparta, Alton, Edwardsville, 
Belleville, Cahokia, and Saint Louis
1138 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH IS CANCELLED...

Most of the remnants of Tropical Cyclone Gordon have moved east 
of the Mississippi River so the Flash Flood Watch for portions of
Illinois and all of Missouri has been cancelled. As Gordon moved 
through the area overnight, it dropped well over 4 inches of rain 
across a large portion of the area.

$$

ILZ060-064-065-069-070-074-090445-
/O.CON.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-
Including the cities of Litchfield, Vandalia, Centralia, 
and Salem
1138 AM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

The Flash Flood Watch continues for

* a portion of south central Illinois...including the following 
  counties...Bond IL...Clinton IL...Fayette IL...Marion IL... 
  Montgomery IL and Washington IL. 

* through Sunday morning

* The remnants of Tropical Cyclone Gordon will continue to push
  east-northeast through Illinois. Rich tropical moisture will
  continue to produce additional heavy rainfall across the watch
  area through this evening. The greatest threat for heavy
  rainfall will remain across portions of southern Illinois.
  Rainfall amounts of 1 to 2 inches are likely through this
  evening with locally higher amounts possible. 

* 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.

&&

$$

BSH
060 
WGUS63 KLSX 082015
FFALSX

Flood Watch
National Weather Service Saint Louis MO
315 PM CDT Sat Sep 8 2018

ILZ060-064-065-069-070-074-082115-
/O.CAN.KLSX.FF.A.0001.000000T0000Z-180909T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-
Washington IL-
Including the cities of Litchfield, Vandalia, Centralia, 
and Salem
315 PM CDT Sat Sep 8 2018

...FLASH FLOOD WATCH IS CANCELLED...

The remnants of Tropical Cyclone Gordon have moved out of the
region, so the Flash Flood Watch for a portion of south central 
Illinois has been cancelled. As Gordon moved through the region,
it brought up to 6" of rain to some locations, and widespread 
areas over 3". 

The cold front that brought additional areas of rain to the
forecast area over the last several days will remain in place this
afternoon and into the evening. This has resulted in additional
areas of light to moderate rain, which should also last into the
evening. Up to an additional 1/4" of rain is possible with these
showers, but no flash flooding is expected. All rain should end by
Sunday morning.

$$

BSH

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Sep 6, 12:21 AM CDT, 3 hours earlier.

Area forecast discussion, Sep 6, 12:21 AM CDT, 3 hours before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1221 AM CDT Thu Sep 6 2018

.UPDATE...
Issued at 839 PM CDT Wed Sep 5 2018

Have updated PoPs overnight based on latest mdl guidance. Believe
that ongoing SHRA over NE MO into west central IL will diminish
slightly over the next couple of hours as low level forcing
weakens. However, as the LLJ increases across portions of central
MO around Midnight, expect precip to refocus over this region and
spread newd into NE MO and west central IL and persist into Thurs
morning. A concern for overnight will be precip amounts. While
expecting a nearly continuous rain is expected from portions of
central into NE MO and west central IL, it appears that thunder
will be fairly limited overnight. This shud reduce the threat for
heavy rainfall. This in turn will be offset by training. Do not
feel confident enuf in a Flash Flood threat to go with a watch at
this point. However, the rainfall overnight will certainly prime
the region for a flood threat later this week in addition to the
current river flood threat.

Tilly

&&

.SHORT TERM...  (Through Late Thursday Afternoon)
Issued at 403 PM CDT Wed Sep 5 2018

The cold front extending SW from a surface low in SE Canada
continues it's march toward the Mid-Mississippi Valley. The front is
just beginning to push into the CWA, and is generating widespread
showers and scattered thunderstorms. The front will stall out across
NE MO and west central IL this evening, and will remain the focus
for precip chances through the night. Meanwhile, isolated to
scattered convection across east central MO and SW IL will persist
through the afternoon, tapering off as we lose diurnal heating.

Upper level flow will remain fairly weak tomorrow, keeping the
baroclinic zone laid out across NE MO and west central IL.
Meanwhile, Tropical Depression Gordon will continue its push NW,
allowing for deep moisture to build into the region, pushing PWATs
toward 2" across the area. The front and Gordon will likely
result in a couple of focuses for precipitation on Thursday. First
of all, precip should continue along the stalled front across NE
MO/WC IL. Secondly, increasing column moisture coupled with the
outer reaches of Gordon should allow precip chances to increase in
SE MO/SW IL. CAPE is somewhat limited, but certainly sufficient
to support embedded storms.

BSH

.LONG TERM...  (Thursday Night through Next Wednesday)
Issued at 403 PM CDT Wed Sep 5 2018

Upper level flow will turn a bit more southwesterly on Friday as a
broad trough moves into the Great Plains. Meanwhile, Gordon will
continue to push to the NW while high pressure simultaneously pushes
south into the Upper Mississippi Valley, shunting the weakening
baroclinic zone a bit farther south. The combination of increasingly
dynamic upper level flow, the stationary front, and the remnants of
Gordon will keep precip chances in place across the area.

From 06-18z Friday, both WPC guidance and superblend are painting
over 2" of QPF, where as the raw synoptic models top out around half
that much. With PWATs around 2" during that period, efficient rain
makers are expected and I'm fairly certain the model amounts will be
exceeded. That said, 2" seems a little excessive for that period, so
I tried to split the difference between WPC/superblend and the raw
models.

The previously mentioned upper trough will continue its push
east, catching the TD Gordon as it reaches NW AR/SW MO early
Saturday morning. At that point, Gordon's track will curve to the
NE and move through southern MO on Saturday. 12z GFS, NAM, and
Euro bring the center of Gordon just south of St Louis on
Saturday night, with highest precip totals focused north and west
of the low track. At this moment, confidence is high that quite a
bit of rain will fall between 06z Saturday and 06z Sunday, and
this will be when the greatest chance for flash flooding will
occur. That said, uncertainty remains with regards to where the
heaviest axis of precipitation will occur, so we will hold off on
a flash flood watch for the time being.

High pressure will build into the region for the early part of
next week, resulting in mostly dry conditions. Temperatures will
be quite a bit cooler than what we've see lately, with highs in
the upper 70s on Monday, pushing into the low to mid 80s by
Wednesday.

BSH

&&

.AVIATION...  (For the 06z TAFs through 06z Thursday Night)
Issued at 1210 AM CDT Thu Sep 6 2018

Main updates were to delay onset of lower cigs at KCOU/KUIN. A
fair amount of uncertainty exists regarding cigs, especially at
KCOU. IFR cigs currently exist just west of KCOU. Believe at least
some MVFR cigs will develop into KCOU before lifting north of the
area overnight as the precip pulls northward. At KUIN...once the
lower cigs move into the area, these cigs shud remain in place
until Thurs morning. The timing of these cigs lifting may be too
quick as well.

SPECIFICS FOR KSTL/KSUS/KCPS: Little change overall. Light winds
expected. Dry and VFR expected, although, isod to sct TSRA are
expected Thurs afternoon. Coverage is too low to go with more than
a VCTS attm.

Tilly

&&

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

WFO LSX
Hazardous weather outlook, Sep 5, 3:57 PM CDT, 11 hours 24 minutes before
Hazardous Weather Outlook
National Weather Service Saint Louis MO
357 PM CDT Wed Sep 5 2018

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-061115-
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-
357 PM CDT Wed Sep 5 2018

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 northeast Missouri and
west central Illinois. There is a slight chance of thunderstorms
along and north of I-70 tonight. Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

There is a chance for thunderstorms and heavy rain through Sunday
over parts of the area. The highest rainfall rates and greatest
rainfall amounts will occur Saturday and Saturday night as
Tropical Depression Gordon interacts with a stalled front along
the I-70 corridor. 4 to 6 inches of rainfall is possible over the
northern half of Missouri and into west central Illinois.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

BSH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 5:40 AM CDTFlash Flood WarningLSXAdams4 hr
Sep 6, 9:13 AM CDTRiver Flood WarningLSXFayette63 hr
Sep 6, 11:03 AM CDTRiver Flood WarningLSXCalhoun, Greene, Jersey8 days
Sep 6, 11:52 AM CDTRiver Flood WarningLSXMadison6 days
Sep 6, 11:52 AM CDTRiver Flood WarningLSXSaint Clair48 hr
Sep 6, 11:52 AM CDTRiver Flood WarningLSXJackson, Randolph9 days
Sep 6, 2:11 AM CDTAreal Flood AdvisoryLSXMonroe6 hr
Sep 6, 4:08 AM CDTFlash Flood WarningLSXMonroe, Ralls6 hr
Sep 6, 6:52 AM CDTFlash Flood WarningLSXAudrain, Boone3 hr
Sep 6, 8:32 AM CDTRiver Flood WarningLSXLewis5 days
Sep 6, 8:32 AM CDTRiver Flood WarningLSXMarion4 days
Sep 6, 9:55 AM CDTRiver Flood WarningLSXCallaway, Osage48 hr
Sep 6, 9:55 AM CDTRiver Flood WarningLSXGasconade, Montgomery5 days
Sep 6, 9:55 AM CDTRiver Flood WarningLSXGasconade, Montgomery7 days
Sep 6, 10:00 AM CDTAreal Flood WarningLSXMonroe, Ralls9 hr
Sep 6, 11:27 AM CDTRiver Flood WarningLSXJefferson, Saint Louis6 days
Sep 6, 2:52 PM CDTRiver Flood WarningLSXLincoln66 hr

Nearby

Flash Flood Watches in Missouri, 2018Flash Flood Watches in Illinois, 2018Every flash flood watch in 2018

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.