Alert archive / Missouri / Flash Flood Watches in 2008

Flash Flood Watch 8, NWS St. Louis, MO

May 25, 200829 counties in Missouri; 17 counties in Illinois

NWS St. Louis, MO issued this flash flood watch at May 25, 2008, 3:57 PM CDT for 29 counties in Missouri; 17 counties in Illinois. It took effect at May 25, 2008, 7:00 PM CDT. It was in force for 68 hr.

The area

The counties it named.

The facts

Issued
May 25, 2008, 3:57 PM CDT (20:57 UTC)
In effect from
May 25, 2008, 7:00 PM CDT
Expired
May 28, 2008, 3:18 PM CDT
In force
68 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 20:57 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 12:00Z, 9.0 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 12:00Z on 2008-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2008-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1337 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS63 KLSX 252057
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
357 PM CDT SUN MAY 25 2008

ILZ095>097-MOZ018-019-026-027-034>036-042-260900-
/O.NEW.KLSX.FF.A.0008.080526T0000Z-080526T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-BROWN IL-PIKE IL-KNOX-LEWIS-SHELBY-MARION-MONROE-RALLS-
PIKE-AUDRAIN-
INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN...
MEXICO
357 PM CDT SUN MAY 25 2008

...FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS AND 
  MISSOURI...INCLUDING THE FOLLOWING COUNTIES...IN WEST CENTRAL 
  ILLINOIS...ADAMS IL...BROWN IL AND PIKE IL. IN MISSOURI...
  AUDRAIN...KNOX...LEWIS...MARION...MONROE...PIKE...RALLS AND 
  SHELBY.

* FROM 7 PM CDT THIS EVENING THROUGH MONDAY AFTERNOON

* ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS NORTHERN
  MISSOURI AND WEST CENTRAL ILLINOIS TONIGHT AND CONTINUE INTO
  MEMORIAL DAY MORNING. THESE STORMS WILL LIKELY PRODUCE ADDITIONAL
  HEAVY RAINFALL ACROSS LOCATIONS THAT RECEIVED LOCALLY HEAVY
  RAINFALL THIS MORNING.

A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT
IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE
AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING.
CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN
FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION
IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED.

$$

BRITT
10 follow-up statements
000 
WGUS63 KLSX 260930
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
430 AM CDT MON MAY 26 2008

ILZ058>060-064-065-069-070-074-079-098>102-MOZ041-047>052-059>065-
072>075-084-085-099-262130-
/O.EXB.KLSX.FF.A.0008.000000T0000Z-080527T1200Z/
/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-CALHOUN IL-JERSEY IL-
MADISON IL-ST. CLAIR IL-MONROE IL-BOONE-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...EDWARDSVILLE...BELLEVILLE...COLUMBIA...JEFFERSON CITY...
ST CHARLES...UNION...ST LOUIS...FARMINGTON
430 AM CDT MON MAY 26 2008

...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS EXPANDED THE

* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF ILLINOIS AND 
  MISSOURI...INCLUDING THE FOLLOWING COUNTIES...IN ILLINOIS...
  BOND IL...CALHOUN IL...CLINTON IL...FAYETTE IL...GREENE IL...
  JERSEY IL...MACOUPIN IL...MADISON IL...MARION IL...MONROE IL...
  MONTGOMERY IL...RANDOLPH IL...ST. CLAIR IL AND WASHINGTON IL. 
  IN MISSOURI...BOONE...CALLAWAY...COLE...CRAWFORD...FRANKLIN...
  GASCONADE...IRON...JEFFERSON...LINCOLN...MADISON...MONITEAU...
  MONTGOMERY...OSAGE...REYNOLDS...ST. CHARLES...ST. FRANCOIS...
  ST. LOUIS...ST. LOUIS CITY...STE. GENEVIEVE...WARREN AND 
  WASHINGTON.

* THROUGH TUESDAY MORNING

* SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED TO IMPACT THE AREA
  THROUGH LATE TONIGHT. DUE TO THE HIGH MOISTURE CONTENT OF THE
  ATMOSPHERE AND THE EXPECTED TRAINING NATURE OF STORMS...THERE
  EXISTS THE POTENTIAL FOR HEAVY RAINFALL OVER MUCH OF THE BI-
  STATE REGION. RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED
  WITH LOCALLY HIGHER AMOUNTS TO FOUR INCHES. 

* WHEN THIS RAINFALL POTENTIAL IS CONSIDERED WITH THE VERY HEAVY
  RAINFALL THAT FELL OVER PARTS OF THE BI-STATE REGION LAST
  NIGHT...NOTABLY IN THE ST. LOUIS METROPOLITAN AREA AND PARTS OF
  SOUTHWEST ILLINOIS...IT WILL NOT TAKE MUCH ADDITIONAL RAINFALL
  TO BECOME ALL RUNOFF AND CONTRIBUTE TO FLASH FLOODING OF CREEKS
  AND STREAMS. 

A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT
IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE
AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING.
CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN
FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION
IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED.

$$

ILZ095>097-MOZ018-019-026-027-034>036-042-262130-
/O.EXT.KLSX.FF.A.0008.000000T0000Z-080527T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-BROWN IL-PIKE IL-KNOX-LEWIS-SHELBY-MARION-MONROE-RALLS-
PIKE-AUDRAIN-
INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN...
MEXICO
430 AM CDT MON MAY 26 2008

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

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* PORTIONS OF WEST CENTRAL ILLINOIS AND MISSOURI...INCLUDING THE 
  FOLLOWING COUNTIES...IN WEST CENTRAL ILLINOIS...ADAMS IL...
  BROWN IL AND PIKE IL. IN MISSOURI...AUDRAIN...KNOX...LEWIS...
  MARION...MONROE...PIKE...RALLS AND SHELBY.

* THROUGH TUESDAY MORNING

* SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED TO IMPACT THE AREA
  THROUGH LATE TONIGHT. DUE TO THE HIGH MOISTURE CONTENT OF THE
  ATMOSPHERE AND THE EXPECTED TRAINING NATURE OF STORMS...THERE
  EXISTS THE POTENTIAL FOR HEAVY RAINFALL OVER MUCH OF THE BI-
  STATE REGION. RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED
  WITH LOCALLY HIGHER AMOUNTS TO FOUR INCHES. 

* WHEN THIS RAINFALL POTENTIAL IS CONSIDERED WITH THE VERY HEAVY
  RAINFALL THAT FELL OVER PARTS OF THE BI-STATE REGION LAST
  NIGHT...NOTABLY IN THE ST. LOUIS METROPOLITAN AREA AND PARTS OF
  SOUTHWEST ILLINOIS...IT WILL NOT TAKE MUCH ADDITIONAL RAINFALL
  TO BECOME ALL RUNOFF AND CONTRIBUTE TO FLASH FLOODING OF CREEKS
  AND STREAMS. 

A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT
IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE
AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING.
CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN
FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION
IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED.

$$

TES
000 
WGUS63 KLSX 262054
FFALSX

FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
354 PM CDT MON MAY 26 2008

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-270900-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080527T1200Z/
/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-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
354 PM CDT MON MAY 26 2008

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

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...ST. CLAIR IL AND WASHINGTON IL. 
  IN MISSOURI...AUDRAIN...BOONE...CALLAWAY...COLE...CRAWFORD...
  FRANKLIN...GASCONADE...IRON...JEFFERSON...KNOX...LEWIS...
  LINCOLN...MADISON...MARION...MONITEAU...MONROE...MONTGOMERY...
  OSAGE...PIKE...RALLS...REYNOLDS...SHELBY...ST. CHARLES...ST. 
  FRANCOIS...ST. LOUIS...ST. LOUIS CITY...STE. GENEVIEVE...
  WARREN AND WASHINGTON.

* THROUGH TUESDAY MORNING

* WHILE THE RAIN ENDED ACROSS THE REGION THIS MORNING...
  THUNDERSTORMS WILL LIKELY REDEVELOP ACROSS THE REGION THIS
  EVENING AND CONTINUE OVERNIGHT. ANY OF THESE STORMS WILL BE
  CAPABLE OF PRODUCING HEAVY RAINFALL GIVEN THE HIGH AMOUNTS OF
  MOISTURE IN THE ATMOSPHERE.  ADDITIONAL RAINFALL AMOUNTS OF ONE
  HALF TO AN INCH AND HALF WITH LOCALLY HIGHER AMOUNTS.

* THE GROUND IS SATURATED ACROSS MUCH OF THE AREA GIVEN MANY
  LOCATIONS RECEIVED BETWEEN 2 AND 4 INCHES OF RAINFALL DURING THE
  PAST 24 HOURS. ANY ADDITIONAL HEAVY RAIN OVER SATURATED GROUND
  WILL LIKELY PRODUCE ADDITIONAL FLASH FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER
GROUND IMMEDIATELY. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE
AND ITS OCCUPANTS AND SWEEP THEM AWAY. MOVE TO HIGHER GROUND.

$$

BRITT
000 
WGUS63 KLSX 270849
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
349 AM CDT TUE MAY 27 2008

ILZ095>097-MOZ018-019-026-027-034>036-271000-
/O.CAN.KLSX.FF.A.0008.000000T0000Z-080527T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-BROWN IL-PIKE IL-KNOX-LEWIS-SHELBY-MARION-MONROE-RALLS-
PIKE-
INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN
349 AM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS AND
NORTHEAST MISSOURI HAS BEEN CANCELLED. 

ADDITIONAL RAINFALL TODAY IS EXPECTED TO BE LESS THAN PREVIOUSLY
THOUGHT...WITH MOST AREAS RECEIVING LESS THAN A QUARTER OF AN INCH
WITH ISOLATED HALF INCH AMOUNTS POSSIBLE. THEREFORE THE FLOODING
THREAT HAS DIMINISHED. 

$$

ILZ058>060-064-065-069-070-074-079-098>102-MOZ041-042-047>052-
059>065-072>075-084-085-099-272100-
/O.EXT.KLSX.FF.A.0008.000000T0000Z-080528T0000Z/
/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-CALHOUN IL-JERSEY IL-
MADISON IL-ST. CLAIR IL-MONROE IL-BOONE-AUDRAIN-MONITEAU-COLE-
OSAGE-CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-
FRANKLIN-ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...EDWARDSVILLE...BELLEVILLE...COLUMBIA...MEXICO...
JEFFERSON CITY...ST CHARLES...UNION...ST LOUIS...FARMINGTON
349 AM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* PORTIONS OF ILLINOIS AND MISSOURI...INCLUDING THE FOLLOWING 
  COUNTIES...IN ILLINOIS...BOND IL...CALHOUN IL...CLINTON IL...
  FAYETTE IL...GREENE IL...JERSEY IL...MACOUPIN IL...MADISON 
  IL...MARION IL...MONROE IL...MONTGOMERY IL...RANDOLPH IL...ST. 
  CLAIR IL AND WASHINGTON IL. IN MISSOURI...AUDRAIN...BOONE...
  CALLAWAY...COLE...CRAWFORD...FRANKLIN...GASCONADE...IRON...
  JEFFERSON...LINCOLN...MADISON...MONITEAU...MONTGOMERY...
  OSAGE...REYNOLDS...ST. CHARLES...ST. FRANCOIS...ST. LOUIS...
  ST. LOUIS CITY...STE. GENEVIEVE...WARREN AND WASHINGTON.

* THROUGH THIS EVENING

* THUNDERSTORMS ARE AGAIN LIKELY ACROSS THE REGION TODAY AS A
  STRONG COLD FRONT MOVES THROUGH. ANY OF THESE STORMS WILL BE
  CAPABLE OF PRODUCING HEAVY RAINFALL GIVEN THE HIGH AMOUNTS OF
  MOISTURE IN THE ATMOSPHERE. ADDITIONAL RAINFALL AMOUNTS OF ONE
  HALF TO ONE AND A HALF INCHES ARE POSSIBLE...WITH LOCALLY HIGHER
  AMOUNTS. 

* THE GROUND REMAINS SATURATED ACROSS MUCH OF THE AREA GIVEN MANY
  LOCATIONS RECEIVED BETWEEN 2 AND 4 INCHES OF RAINFALL...AND IN
  SOME CASES AS MUCH AS 9 INCHES OF RAINFALL...DURING THE PAST 36
  HOURS. ANY ADDITIONAL HEAVY RAIN OVER SATURATED GROUND WILL HAVE
  A GOOD CHANCE OF PRODUCING SOME FLASH FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER
GROUND IMMEDIATELY. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE
AND ITS OCCUPANTS AND SWEEP THEM AWAY. MOVE TO HIGHER GROUND.

$$

TES
000 
WGUS63 KLSX 271802
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
102 PM CDT TUE MAY 27 2008

MOZ060-280000-
/O.EXT.KLSX.FF.A.0008.000000T0000Z-080528T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
102 PM CDT TUE MAY 27 2008

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

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* THROUGH WEDNESDAY MORNING

* AT 1230 PM THE WARREN COUNTY EMERGENCY MANAGEMENT AGENCY
  REPORTED THAT THE ALPINE DAM WITHIN THE INNSBROOK ESTATES AREA
  WAS LEAKING AND COULD POSSIBLY FAIL.

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK AND
  ACROSS CHARRETTE CREEK ROAD. ALL PERSONS IMMEDIATELY DOWNSTREAM
  OF THE ALPINE DAM SHOULD BE PREPARED TO MOVE TO HIGH GROUND
  IMMEDIATELY.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER
GROUND IMMEDIATELY. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE
AND ITS OCCUPANTS AND SWEEP THEM AWAY. MOVE TO HIGHER GROUND.

$$

ILZ058>060-064-065-069-070-074-079-098>102-MOZ041-042-047>052-059-
061>065-072>075-084-085-099-280000-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080528T0000Z/
/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-CALHOUN IL-JERSEY IL-
MADISON IL-ST. CLAIR IL-MONROE IL-BOONE-AUDRAIN-MONITEAU-COLE-
OSAGE-CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...EDWARDSVILLE...BELLEVILLE...COLUMBIA...MEXICO...
JEFFERSON CITY...ST CHARLES...UNION...ST LOUIS...FARMINGTON
102 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF ILLINOIS AND MISSOURI...INCLUDING THE FOLLOWING 
  COUNTIES...IN ILLINOIS...BOND IL...CALHOUN IL...CLINTON IL...
  FAYETTE IL...GREENE IL...JERSEY IL...MACOUPIN IL...MADISON 
  IL...MARION IL...MONROE IL...MONTGOMERY IL...RANDOLPH IL...ST. 
  CLAIR IL AND WASHINGTON IL. IN MISSOURI...AUDRAIN...BOONE...
  CALLAWAY...COLE...CRAWFORD...FRANKLIN...GASCONADE...IRON...
  JEFFERSON...LINCOLN...MADISON...MONITEAU...MONTGOMERY...
  OSAGE...REYNOLDS...ST. CHARLES...ST. FRANCOIS...ST. LOUIS...
  ST. LOUIS CITY...STE. GENEVIEVE AND WASHINGTON.

* UNTIL 7 PM CDT THIS EVENING

* THUNDERSTORMS REMAIN LIKELY ACROSS THE REGION TODAY AS A STRONG
  COLD FRONT MOVES THROUGH. ANY OF THESE STORMS WILL BE CAPABLE OF
  PRODUCING HEAVY RAINFALL GIVEN THE HIGH AMOUNTS OF MOISTURE IN
  THE ATMOSPHERE. ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE
  AND A HALF INCHES ARE POSSIBLE...WITH LOCALLY HIGHER AMOUNTS.

* THE GROUND REMAINS SATURATED ACROSS MUCH OF THE AREA GIVEN 
  MANY LOCATIONS RECEIVED BETWEEN 2 AND 4 INCHES OF RAINFALL...
  AND IN SOME CASES AS MUCH AS 9 INCHES OF RAINFALL...DURING THE 
  PAST 36 HOURS. ANY ADDITIONAL HEAVY RAIN OVER SATURATED GROUND 
  WILL HAVE A GOOD CHANCE OF PRODUCING SOME FLASH FLOODING. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER
GROUND IMMEDIATELY. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE
AND ITS OCCUPANTS AND SWEEP THEM AWAY. MOVE TO HIGHER GROUND.

$$

GLASS
000 
WGUS63 KLSX 272112
FFALSX

FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
412 PM CDT TUE MAY 27 2008

ILZ098-MOZ041-042-047>052-272215-
/O.CAN.KLSX.FF.A.0008.000000T0000Z-080528T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALHOUN IL-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-CALLAWAY-MONTGOMERY-
LINCOLN-
INCLUDING THE CITIES OF...COLUMBIA...MEXICO...JEFFERSON CITY
412 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH IS CANCELLED

THE FLASH FLOOD WATCH FOR PARTS OF SOUTHWEST ILLINOIS AND
MISSOURI HAS BEEN CANCELLED. THE THREAT OF HEAVY RAINFALL HAS
ENDED ACROSS THESE AREAS.

$$

ILZ058>060-064-065-069-070-074-079-099>102-MOZ059-061>065-072>075-
084-085-099-280000-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080528T0000Z/
/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-JERSEY IL-MADISON IL-
ST. CLAIR IL-MONROE IL-GASCONADE-ST. CHARLES-FRANKLIN-ST. LOUIS-
ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-ST. FRANCOIS-
STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...EDWARDSVILLE...BELLEVILLE...ST CHARLES...UNION...
ST LOUIS...FARMINGTON
412 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF ILLINOIS AND MISSOURI...INCLUDING THE FOLLOWING 
  COUNTIES...IN ILLINOIS...BOND IL...CLINTON IL...FAYETTE IL...
  GREENE IL...JERSEY IL...MACOUPIN IL...MADISON IL...MARION IL...
  MONROE IL...MONTGOMERY IL...RANDOLPH IL...ST. CLAIR IL AND 
  WASHINGTON IL. IN MISSOURI...CRAWFORD...FRANKLIN...GASCONADE...
  IRON...JEFFERSON...MADISON...REYNOLDS...ST. CHARLES...ST. 
  FRANCOIS...ST. LOUIS...ST. LOUIS CITY...STE. GENEVIEVE AND 
  WASHINGTON.

* UNTIL 7 PM CDT THIS EVENING

* THUNDERSTORMS ARE EXPECTED TO GRADUALLY END FROM WEST TO EAST
  ACROSS THE REGION EARLY THIS EVENING. A FEW OF THESE STORMS MAY
  STILL PRODUCE SOME LOCALLY HEAVY RAINFALL.

* THE GROUND REMAINS SATURATED ACROSS MUCH OF THE WATCH AREA WITH
  SOME FLASH FLOODING ONGOING. ANY HEAVY RAINFALL OVER SATURATED
  GROUND THROUGH EARLY THIS EVENING COULD PRODUCE ADDITIONAL FLASH
  FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
QUICKLY. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER
GROUND IMMEDIATELY. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE
AND ITS OCCUPANTS AND SWEEP THEM AWAY. MOVE TO HIGHER GROUND.

$$

MOZ060-280915-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080528T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
412 PM CDT TUE MAY 27 2008

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

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* THROUGH WEDNESDAY MORNING

* AT 4 PM...THE WARREN COUNTY FIRE CHIEF AND INCIDENT COMMANDER
  REPORTED THAT THE OVERFLOW DISCHARGE VALVE THAT HAD FAILED IN
  THE ALPINE DAM WITHIN THE INNSBROOK ESTATES AREA WAS IN THE
  PROCESS OF BEING REPAIRED. HE STATED THAT THERE IS STILL A LOW
  THREAT OF DAM FAILURE THROUGH EARLY EVENING UNTIL REPAIRS ARE
  COMPLETED. 

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK AND
  ACROSS CHARRETTE CREEK ROAD. PEOPLE DOWNSTREAM SHOULD HAVE A
  HEIGHTENED STATE OF AWARENESS UNTIL THESE REPAIRS ARE COMPLETE.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

$$

BRITT
000 
WGUS63 KLSX 280017
FFALSX

FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
717 PM CDT TUE MAY 27 2008

ILZ058>060-064-065-069-070-074-079-099>102-MOZ059-061>065-072>075-
084-085-099-280130-
/O.EXP.KLSX.FF.A.0008.000000T0000Z-080528T0000Z/
/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-JERSEY IL-MADISON IL-
ST. CLAIR IL-MONROE IL-GASCONADE-ST. CHARLES-FRANKLIN-ST. LOUIS-
ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-ST. FRANCOIS-
STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...EDWARDSVILLE...BELLEVILLE...ST CHARLES...UNION...
ST LOUIS...FARMINGTON
717 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH HAS EXPIRED...

THE FLASH FLOOD WATCH FOR PORTIONS OF ILLINOIS AND MISSOURI HAS
EXPIRED. ALTHOUGH SOME RAIN WILL LINGER OVER THE AREA EARLY THIS
EVENING...HEAVY RAIN IS NO LONGER A THREAT.

HOWEVER...RUNOFF FROM THIS AFTERNOONS DOWNPOURS WILL CONTINUE A
THREAT OF HIGH WATER IN SOME SECTIONS OF SOUTHERN ILLINOIS AND
SOUTHEAST MISSOURI. MOTORISTS SHOULD REMAIN ALERT...ESPECIALLY
WHILE DRIVING INTO AREAS PRONE TO FLOODING DURING TIMES OF WET
WEATHER.

$$

MOZ060-281200-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080528T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
717 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* UNTIL 7 AM CDT WEDNESDAY

* AT 7 PM...REPAIR WORK CONTINUES ON THE DAM AND EMERGENCY
  OFFICIALS ARE CONTINUING TO MONITOR THE SITUATION.

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF 
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM 
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK 
  AND ACROSS CHARRETTE CREEK ROAD. PEOPLE DOWNSTREAM SHOULD HAVE 
  A HEIGHTENED STATE OF AWARENESS UNTIL THESE REPAIRS ARE 
  COMPLETE. 

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

$$

TRUETT
000 
WGUS63 KLSX 280309
FFALSX

FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
1009 PM CDT TUE MAY 27 2008

MOZ060-281200-
/O.CON.KLSX.FF.A.0008.000000T0000Z-080528T1200Z/
/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
1009 PM CDT TUE MAY 27 2008

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* UNTIL 7 AM CDT WEDNESDAY

* AT 10 PM...THE WRIGHT CITY FIRE CHIEF AND INCIDENT COMMANDER
  INDICATED THAT REPAIRS ARE CONTINUING ON THE DAMAGED OUTLET OF
  THE DAM...AND THE WORK WILL CONTINUE FOR SEVERAL MORE HOURS.
  THIS WORK WILL STOP WATER FROM FLOWING INTO THE OUTLET...AND
  CAUSE THE WATER BEHIND THE DAM TO DIVERT INTO THE SECONDARY
  SPILLWAY. SECURITY PERSONNEL WILL BE MONITORING THE DAM
  THROUGHOUT THE NIGHT.

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF 
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM 
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK 
  AND ACROSS CHARRETTE CREEK ROAD. PEOPLE DOWNSTREAM SHOULD HAVE 
  A HEIGHTENED STATE OF AWARENESS UNTIL THESE REPAIRS ARE 
  COMPLETE. 

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

$$

TRUETT
000 
WGUS63 KLSX 281131
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
631 AM CDT WED MAY 28 2008

MOZ060-281500-
/O.EXT.KLSX.FF.A.0008.000000T0000Z-080528T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
631 AM CDT WED MAY 28 2008

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 10 AM CDT THIS MORNING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* UNTIL 10 AM CDT THIS MORNING

* AT 615 AM...THE WRIGHT CITY FIRE CHIEF AND INCIDENT COMMANDER
  INDICATED THAT REPAIRS HAVE BEEN PERFORMED ON THE DAMAGED OUTLET
  OF THE DAM...BUT WILL NEED UNTIL MID MORNING TO FULLY EVALUATE
  WHETHER THE DANGER HAS PASSED. IT IS HOPED THAT THE REPAIRS
  PERFORMED WILL STOP WATER FROM FLOWING INTO THE OUTLET...AND
  CAUSE THE WATER BEHIND THE DAM TO DIVERT INTO THE SECONDARY
  SPILLWAY.

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK AND
  ACROSS CHARRETTE CREEK ROAD. PEOPLE DOWNSTREAM SHOULD HAVE A
  HEIGHTENED STATE OF AWARENESS UNTIL IT HAS BEEN DETERMINED THAT
  THE THREAT OF DAM FAILURE HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

$$

TES
000 
WGUS63 KLSX 281430
FFALSX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
930 AM CDT WED MAY 28 2008

MOZ060-290000-
/O.EXT.KLSX.FF.A.0008.000000T0000Z-080529T0000Z/
/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
930 AM CDT WED MAY 28 2008

...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* A PORTION OF EAST CENTRAL MISSOURI...INCLUDING THE FOLLOWING 
  COUNTY...WARREN.

* UNTIL 7 PM CDT THIS EVENING

* AT 915 AM CDT...THE INCIDENT COMMANDER INDICATED THAT REPAIRS
  CONTINUE ON THE ALPINE LAKE DAM. THERE HAS BEEN SOME LEAKAGE
  AND SLIGHT EROSION OVERNIGHT BUT ALL WATER CONTINUES TO BE
  DIVERTED INTO THE SECONDARY SPILLWAY. UNTIL ALL THE REPAIRS HAVE
  BEEN COMPLETED AND THE DANGER HAS COMPLETELY PASSED...IT HAS
  BEEN REQUESTED THAT THE FLASH FLOOD WATCH REMAIN IN EFFECT.

* THE ALPINE DAM IS AN EARTHEN DAM LOCATED ON THE SOUTH END OF
  ALPINE LAKE AND IS SPANNED BY ALPINE LAKE DRIVE. IF THE DAM
  FAILS...THE WATER WOULD FLOW SOUTH AND INTO CHARRETTE CREEK AND
  ACROSS CHARRETTE CREEK ROAD. PEOPLE DOWNSTREAM SHOULD HAVE A
  HEIGHTENED STATE OF AWARENESS UNTIL REPAIRS ARE COMPLETED AND IT
  HAS BEEN DETERMINED THAT THE THREAT OF DAM FAILURE HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

$$

GLASS
000 
WGUS63 KLSX 282018
FFALSX

FLOOD WATCH
NATIONAL WEATHER SERVICE ST LOUIS MO
318 PM CDT WED MAY 28 2008

MOZ060-282130-
/O.CAN.KLSX.FF.A.0008.000000T0000Z-080529T0000Z/
/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN-
318 PM CDT WED MAY 28 2008

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR WARREN COUNTY HAS BEEN CANCELLED.

AT 310 PM...THE INCIDENT COMMAND AT THE ALPINE LAKE DAM IN INNSBROOK
REPORTED THAT THERE IS NO LONGER ANY THREAT OF DAM FAILURE. THEREFORE
THE FLASH FLOOD WATCH HAS BEEN CANCELLED.

$$

GLASS

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 May 25, 3:50 PM CDT, 7 minutes earlier.

Area forecast discussion, May 25, 3:50 PM CDT, 7 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
350 PM CDT SUN MAY 25 2008

.DISCUSSION...
/345 PM CDT SUN MAY 25 2008/

WILL BE ISSUING A FLASH FLOOD WATCH FOR NORTHEAST MISSOURI AND
WEST CENTRAL ILLINOIS UNTIL MIDDAY MONDAY. MOST OF NORTHEAST
MISSOURI AND WEST CENTRAL ILLINOIS RECEIVED BETWEEN 1/2 AND 1 INCH
OF RAINFALL THIS MORNING...WITH LOCALLY HEAVIER AMOUNTS. THIS SAME
AREA WILL LIKELY SEE ADDITIONAL LOCALLY HEAVY RAINFALL TONIGHT
INTO TOMORROW MORNING AS 925-850MB MOISTURE CONVERGENCE AND
TRANSPORT INCREASES UNDER RIGHT ENTRANCE REGION OF UPPER JET. SVR
TSRA OVER PLAINS MAY ORGANIZE INTO AN MCS AND MOVE ACROSS NRN NO
LATE TONIGHT AND TOMORROW MORNING. PROPAGATION VECTORS SUGGEST THE
POTENTIAL THAT THE MCS MAY BACKBUILD OR BECOME QUASI-STATIONARY.
PRECIPTIABLE WATERS WILL BE NEAR 2 INCHES WHICH WILL INCREASE
RAINFALL EFFICIENCY OF STORMS. WATCH HAS BEEN ISSUED FOR THESE
CONDITIONS.

STRONG TO OCCASIONALLY SVR TSRA HAVE DEVELOPED THROUGHOUT TODAY
AS ATMOSPHERE IS BECOMING INCREASING UNSTABLE. SURFACE WARM FRONT
WAS LOCATED VERY CLOSE TO THE MISSISSIPPI RIVER AT 20Z. DEWPOINTS
TO THE WEST OF THE FRONT HAVE CLIMBED INTO LOWER TO MID 70S UNDER
7.5C/KM MID LEVEL LAPSE RATES. WARM FRONT AND VARIOUS OUTFLOW
BOUNDARIES LIE ACROSS THE REGION FROM ONGOING CONVECTION WILL ACT
AS FOCUSING MECHANISMS FOR CONTINUED TSRA THIS EVENING. GIVEN
MCAPES OF 2000 J/KG WEST OF THE FRONT AND DEEP LAYER SHEAR OF
35-50KTS...SEVERE TSRA DEVELOPMENT TO CONTINUE INTO THE EVENING
AND SEVERE TSRA WATCH WILL BE ISSUED SOON.

DID NOT MAKE TOO MUCH CHANGES OTHERWISE AS EARLY SUMMER AIRMASS
WILL BE REPLACED WITH BELOW NORMAL TEMPERATURES BEHIND FRONT BY
TUESDAY.

BRITT

&&

.AVIATION...
/1131 AM CDT SUN MAY 25 2008/
FOR THE 18Z TAFS...ALTHOUGH MOST OF THE CONVECTION HAS PUSHED E OF
THE TAF SITES ATTM EXPECTING AT LEAST ISOLD TO WDLY SCT CONVECTION
TO DVLP THIS AFTN NR OUTFLOW BNDRYS FM PREVIOUS CONVECTION AND AS
A WRMFNT MOVES NEWD THRU THE CWA. LATEST RADAR IMAGES DEPICT AN
ISOLD TSRA OVER THE WRN PTN OF THE STL METRO AREA WHICH MAY
IMPACT STL/SUS ARND 18Z. LOW LVL STRATUS CLOUD CEILING IN COU
SHOULD RISE INTO THE VFR CATAGORY EARLY THIS AFTN. S-SELY SFC
WNDS SHOULD VEER ARND TO A MORE S-SWLY DIRECTION TGT AND MON MRNG
AFTER THE PASSAGE OF THE WRMFNT. SHOULD BE MAINLY MID-HI LVL
CLOUDINESS TGT. AN MCS IS EXPECTED TO MOVE THRU NRN MO LT TGT INTO
MON MRNG. WILL INCLUDE A PROB30 GRP OF TSRA IN UIN DURING THE
EARLY MRNG HRS. MAY ALSO INCLUDE A PROB30 GRP OF TSRA FOR THE
REST OF THE TAF SITES BY LT MRNG ON MON ALONG WITH A LOW LVL CLOUD
CEILING ARND 3000 FT.

GKS

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH MONDAY
     AFTERNOON FOR AUDRAIN-KNOX-LEWIS-MARION-MONROE-PIKE-RALLS-
     SHELBY.

IL...FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH MONDAY
     AFTERNOON FOR ADAMS IL-BROWN IL-PIKE IL.

&&

WFO LSX
Hazardous weather outlook, May 25, 5:33 AM CDT, 10 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
533 AM CDT SUN MAY 25 2008

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-261200-
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-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
533 AM CDT SUN MAY 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS GENERALLY FOR
AREAS NORTH AND WEST OF ST. LOUIS...OR INCLUDING PARTS OF
NORTHEAST AND CENTRAL MISSOURI AND WEST CENTRAL ILLINOIS.
SCATTERED THUNDERSTORMS WILL BE POSSIBLE THROUGH THIS EVENING WITH
THE POTENTIAL FOR MARGINALLY SEVERE HAIL AND GUSTY WINDS IN THE
STRONGER STORMS...BUT MORE ORGANIZED CONVECTION WITH THE GREATER
SEVERE THREAT IS EXPECTED TO IMPACT THIS AREA LATE TONIGHT.
ELSEWHERE...THERE IS A CHANCE FOR MAINLY AFTERNOON THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS AREAWIDE ON
MEMORIAL DAY AND MONDAY NIGHT ALONG A SLOW MOVING FRONTAL SYSTEM
THAT WILL EXTEND ACROSS MISSOURI AND ILLINOIS. IT IS LIKELY A
CONVECTIVE SYSTEM WILL BE IMPACTING PARTS OF NORTHEAST MISSOURI
AND WEST CENTRAL ILLINOIS MONDAY MORNING...AND ANOTHER CONVECTIVE
SYSTEM WILL FOLLOW MONDAY NIGHT FOR AREAS FURTHER SOUTH. GIVEN THE
HIGH MOISTURE CONTENT OF THE ATMOSPHERE...LOCALLY HEAVY RAINFALL
WILL ALSO BE POSSIBLE DURING THIS TIME. THE CHANCE FOR
THUNDERSTORMS WILL CONTINUE ON TUESDAY...MAINLY FOR AREAS SOUTH
OF INTERSTATE 70.

THE CHANCE FOR THUNDERSTORMS WILL RETURN ON FRIDAY AND SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE OVER THE SLIGHT RISK FOR SEVERE
AREA...ESPECIALLY LATER TONIGHT WITH THE MORE ORGANIZED
CONVECTION. SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE WEATHER
TO THE NATIONAL WEATHER SERVICE.

&&

FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR
WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1

TES

In the hours before

Special weather statement, May 25, 2:27 PM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
227 PM CDT SUN MAY 25 2008

ILZ069-252030-
CLINTON IL-
227 PM CDT SUN MAY 25 2008

AT 227 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM 4 MILES NORTHEAST OF CARLYLE...MOVING EAST AT 23 MPH.

THIS STORM WILL BE CAPABLE OF PRODUCING FREQUENT CLOUD TO GROUND
LIGHTNING...HAIL UP TO ONE HALF INCH IN DIAMETER...GUSTY WINDS UP 40
MPH...AND HEAVY RAIN AS IT AFFECTS AREAS SURROUNDING CARLYLE LAKE
BETWEEN 230 PM AND 330 PM.

MILLER
Local storm report, May 25, 2:49 PM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
249 PM CDT SUN MAY 25 2008

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

0247 PM     HAIL             3 N HILLSBORO           39.21N  89.48W
05/25/2008  E1.00 INCH       MONTGOMERY         IL   TRAINED SPOTTER

&&

EVENT NUMBER 00104

FGLASS
Local storm report, May 25, 2:52 PM CDT, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
252 PM CDT SUN MAY 25 2008

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

0250 PM     HAIL             3 N HILLSBORO           38.28N  90.57W
05/25/2008  M1.25 INCH       JEFFERSON          MO   TRAINED SPOTTER

&&

EVENT NUMBER 00105

FGLASS
Local storm report, May 25, 3:00 PM CDT, 57 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE ST LOUIS MO
300 PM CDT SUN MAY 25 2008

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

0247 PM     HAIL             3 N HILLSBORO           38.28N  90.57W
05/25/2008  E1.00 INCH       JEFFERSON          MO   TRAINED SPOTTER

&&

CORRECTED COUNTY/STATE...LOCATION

EVENT NUMBER 00104

FGLASS
Local storm report, May 25, 3:15 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
315 PM CDT SUN MAY 25 2008

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

0313 PM     HAIL             1 N MAPAVILLE           38.26N  90.49W
05/25/2008  E1.00 INCH       JEFFERSON          MO   TRAINED SPOTTER

            HAIL STARTED AROUND 305 PM AND HAS BEEN VARYING IN SIZE
            FROM PENNY TO QUARTER AND IS COVERING THE GROUND

&&

EVENT NUMBER 00106

FGLASS
Local storm report, May 25, 3:56 PM CDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
356 PM CDT SUN MAY 25 2008

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

0347 PM     FLOOD            3 SW WATERLOO           38.30N  90.19W
05/25/2008                   MONROE             IL   TRAINED SPOTTER

            REPORT OF 6 TO 8 INCHES OF WATER THAT IS RUNNING OFF
            FIELDS AND ACROSS SEVERAL ROADS. ROADS WITH WATER ON
            THEM INCLUDE OLD BAUM CHURCH ROAD AND AHNE ROAD.

&&

EVENT NUMBER 00107

FGLASS

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 6:32 AM CDTSevere Thunderstorm WarningLSXPike43 min
May 25, 6:58 AM CDTSevere Thunderstorm WarningLSXLewis, Marion47 min
May 25, 8:15 AM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Osage45 min
May 25, 11:49 AM CDTSevere Thunderstorm WarningLSXSaint Charles41 min
May 25, 12:19 PM CDTSevere Thunderstorm WarningLSXSaint Louis41 min
May 25, 12:30 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis60 min
May 25, 2:37 PM CDTSevere Thunderstorm WarningLSXJefferson53 min
May 25, 3:18 PM CDTSevere Thunderstorm WarningLSXJefferson42 min
May 25, 4:16 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Monroe59 min
May 25, 5:03 PM CDTFlash Flood WarningLSXAudrain, Boone, Monroe4 hr
May 25, 5:13 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Ralls62 min
May 25, 5:48 PM CDTTornado WarningLSXAudrain, Ralls42 min
May 25, 6:09 PM CDTSevere Thunderstorm WarningLSXPike51 min
May 25, 6:26 PM CDTSevere Thunderstorm WarningLSXLincoln, Pike64 min
May 25, 6:39 PM CDTSevere Thunderstorm WarningLSXMonroe, Ralls51 min
May 25, 6:43 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles, Warren47 min
May 25, 8:45 AM CDTAreal Flood AdvisoryLSXAdams, Pike6 hr
May 25, 9:48 AM CDTFlash Flood WarningLSXPike3 hr
May 25, 10:02 AM CDTSevere Thunderstorm WarningLSXGreene, Jersey, Macoupin43 min
May 25, 10:25 AM CDTSevere Thunderstorm WarningLSXMadison51 min
May 25, 11:21 AM CDTSevere Thunderstorm WarningLSXBond39 min
May 25, 11:31 AM CDTFlash Flood WarningLSXCalhoun, Greene, Jersey4 hr
May 25, 12:54 PM CDTSevere Thunderstorm WarningLSXMadison66 min
May 25, 1:37 PM CDTSevere Thunderstorm WarningLSXFayette, Marion38 min
May 25, 1:58 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Fayette62 min
May 25, 1:59 PM CDTRiver Flood WarningLSXCalhoun, Jersey3 days
May 25, 2:15 PM CDTSevere Thunderstorm WarningLSXMarion60 min
May 25, 3:54 PM CDTFlash Flood WarningLSXMonroe3 hr
May 25, 4:00 PM CDTSevere Thunderstorm WarningLSXMonroe, Randolph, Saint Clair60 min
May 25, 4:57 PM CDTSevere Thunderstorm WarningLSXRandolph, Saint Clair, Washington78 min
May 25, 5:27 PM CDTTornado WarningLSXRandolph33 min
May 25, 6:32 PM CDTFlash Flood WarningLSXRandolph118 min

Nearby

Flash Flood Watches in Missouri, 2008Flash Flood Watches in Illinois, 2008Every flash flood watch in 2008

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.