Alert archive / Missouri / Flash Flood Warnings in 2013

Flash Flood Warning 4, NWS St. Louis, MO

April 18, 2013Adams County, Brown County, Pike County, Illinois; 9 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 18, 2013, 3:32 AM CDT for Adams County, Brown County, Pike County, Illinois; 9 counties in Missouri. It was in force for 12 hr. 11 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 18, 2013, 3:32 AM CDT (08:32 UTC)
Expired: Apr 18, 2013, 3:30 PM CDT
In force: 12 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Adams County, IL, Brown County, IL, Pike County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Monroe County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 151 km from the middle of the area, began a volume at 08:35 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.

What was reported inside it

Time	Report	Where	Remark
Apr 18, 5:31 AM CDT	FLASH FLOOD	3 W Ewing, MO	APPROXIMATELY ONE FOOT OF FLOWING WATER OVER ROUTE D 156 BETWEEN EWING AND NEWARK.
Apr 18, 6:00 AM CDT	HEAVY RAIN 3.3	Quincy, IL	AT LOCK AND DAM 21
Apr 18, 6:00 AM CDT	HEAVY RAIN 4.15	Canton, MO
Apr 18, 6:56 AM CDT	HEAVY RAIN 4.27	Edina, MO	24 HOUR REPORT
Apr 18, 7:00 AM CDT	HEAVY RAIN 3.7	Shelbina, MO
Apr 18, 7:00 AM CDT	HEAVY RAIN 3.73	4 Se Quincy, IL	24-HR TOTAL.
Apr 18, 7:00 AM CDT	HEAVY RAIN 4.45	Novelty, MO	24-HR TOTAL.
Apr 18, 7:00 AM CDT	HEAVY RAIN 4.97	1 W Palmyra, MO	24-HR TOTAL.
Apr 18, 7:00 AM CDT	HEAVY RAIN 5.19	Monticello, MO	24-HR TOTAL.
Apr 18, 7:30 AM CDT	HEAVY RAIN 4.72	4 W Shelbyville, MO	24-HR TOTAL. STILL RAINING LIGHTLY.
Apr 18, 8:00 AM CDT	HEAVY RAIN 4.33	Canton, MO	24-HR TOTAL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 8.5 hours before the alert went out and 287 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 412 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 444 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.4

Open this sounding in Storm Lab

The text

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

885 
WGUS53 KLSX 180832
FFWLSX
ILC001-009-149-MOC007-019-027-103-111-127-137-173-205-182030-
/O.NEW.KLSX.FF.W.0004.130418T0832Z-130418T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
332 AM CDT THU APR 18 2013

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
  BOONE COUNTY IN CENTRAL MISSOURI...
  KNOX COUNTY IN NORTHEAST MISSOURI...
  LEWIS COUNTY IN NORTHEAST MISSOURI...
  MARION COUNTY IN NORTHEAST MISSOURI...
  MONROE COUNTY IN NORTHEAST MISSOURI...
  NORTHWESTERN BROWN COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHWESTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
  NORTHWESTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
  RALLS COUNTY IN NORTHEAST MISSOURI...
  SHELBY COUNTY IN NORTHEAST MISSOURI...
  WESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI...

* UNTIL 330 PM CDT THURSDAY

* AT 328 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
  WARNED AREA. LATEST RADAR ESTIMATES AND GROUND TRUTH OBSERVATIONS 
  INDICATE THAT 3 TO 5 INCHES OF RAIN HAS FALLEN SINCE YESTERDAY 
  OVER A LARGE PORTION OF NORTHEAST MISSOURI INTO WEST CENTRAL 
  ILLINOIS. THE HIGHEST AMOUNTS ARE CENTERED ALONG A LINE FROM NEAR
  SHELBINA TO PHILADELPHIA TO NORTH QUINCY TO LORAINE. A NUMBER OF 
  ROADS ARE CLOSED ACROSS THIS REGION DUE TO HIGH WATER.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CANTON...CENTRALIA...COLUMBIA...EDINA...HANNIBAL...MEXICO...MONROE
  CITY...PALMYRA...PARIS...QUINCY...SANTA FE...SHELBINA...CAMP
  POINT...CENTER...CLARENCE...CLAYTON...COLONY...EMDEN...EWING...FALL
  CREEK...GOLDEN...GRANVILLE...HALLSVILLE...KNOX CITY...LA BELLE...LA
  GRANGE...LEWISTOWN...MADISON...MAUD AND MAYWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

ADDITIONAL RAINFALL AMOUNTS OF AROUND ONE INCH ARE POSSIBLE IN THE 
WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4025 9150 4020 9150 4020 9092 4011 9090
      4011 9077 3868 9236 3876 9241 3881 9238
      3900 9257 3924 9244 3925 9232 3995 9229
      3996 9235 4031 9234

$$

GLASS

2 follow-up statements

522 
WGUS73 KLSX 181241
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
741 AM CDT THU APR 18 2013

ILC001-009-149-MOC007-019-027-103-111-127-137-173-205-182030-
/O.CON.KLSX.FF.W.0004.000000T0000Z-130418T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE IL-ADAMS IL-BROWN IL-BOONE MO-CALLAWAY MO-KNOX MO-LEWIS MO-
MARION MO-MONROE MO-RALLS MO-SHELBY MO-AUDRAIN MO-
741 AM CDT THU APR 18 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN BROWN...
ADAMS AND NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND
WESTERN AUDRAIN...NORTHWESTERN CALLAWAY AND BOONE COUNTIES IN CENTRAL
MISSOURI...AND SHELBY...RALLS...MONROE...MARION...LEWIS AND KNOX
COUNTIES IN NORTHEAST MISSOURI UNTIL 330 PM CDT THURSDAY...

AT 738 AM CDT...WIDESPREAD FLOODING WAS OCCURRING ACROSS A LARGE 
PORTION OF NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS. THE 
DEPARTMENT OF TRANSPORTATION INDICATED A NUMBER OF ROADS CLOSED DUE 
TO HIGH WATER. OBSERVED RAINFALL REPORTS ALONG WITH RADAR ESTIMATES 
SHOW THAT 3 TO 5 INCHES OF RAIN HAS FALLEN ACROSS MUCH OF THE AREA 
WINCE WEDNESDAY EVENING. LIGHT TO MODERATE RAIN IS EXPECTED TO 
CONTINUE THROUGH THE REMAINDER OF THE MORNING WITH ADDITIONAL 
RAINFALL AMOUNTS OF UNDER AN INCH.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CANTON...
CENTRALIA...COLUMBIA...EDINA...HANNIBAL...MEXICO...MONROE CITY...
PALMYRA...PARIS...QUINCY...SANTA FE...SHELBINA...CAMP POINT...
CENTER...CLARENCE...CLAYTON...COLONY...EMDEN...EWING...FALL CREEK...
GOLDEN...GRANVILLE...HALLSVILLE...KNOX CITY...LA BELLE...LA GRANGE...
LEWISTOWN...MADISON...MAUD AND MAYWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4025 9150 4020 9150 4020 9092 4011 9090
      4011 9077 3868 9236 3876 9241 3881 9238
      3900 9257 3924 9244 3925 9232 3995 9229
      3996 9235 4031 9234

$$

GLASS

133 
WGUS73 KLSX 181817
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
117 PM CDT THU APR 18 2013

ILC001-009-149-MOC007-019-027-103-111-127-137-173-205-182030-
/O.CON.KLSX.FF.W.0004.000000T0000Z-130418T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE IL-ADAMS IL-BROWN IL-BOONE MO-CALLAWAY MO-KNOX MO-LEWIS MO-
MARION MO-MONROE MO-RALLS MO-SHELBY MO-AUDRAIN MO-
117 PM CDT THU APR 18 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN BROWN...
ADAMS AND NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND
WESTERN AUDRAIN...NORTHWESTERN CALLAWAY AND BOONE COUNTIES IN CENTRAL
MISSOURI...AND SHELBY...RALLS...MONROE...MARION...LEWIS AND KNOX
COUNTIES IN NORTHEAST MISSOURI UNTIL 330 PM CDT...

AT 110 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS AND THE MISSOURI 
DEPARTMENT OF TRANSPORTATION REPORTED THAT NUMEROUS ROADS REMAINED 
CLOSED DUE TO FLOODING. MOST OF THE ROAD CLOSINGS EXTEND FROM MONROE 
NORTH ACROSS SHELBY AND INTO KNOX COUNTY MISSOURI. THE RAIN HAS 
ENDED ACROSS THE AREA THUS WATER LEVELS ARE EXPECTED TO SLOWLY DROP 
INTO LATE AFTERNOON. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
CANTON...CENTRALIA...COLUMBIA...EDINA...PARIS...SHELBINA... 
SHELBYVILLE...CLARENCE...COLONY...HALLSVILLE...AND KNOX CITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THE RAIN WILL CAUSE FLOODING OF SMALL CREEKS 
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 4025 9150 4020 9150 4020 9092 4011 9090
      4011 9077 3868 9236 3876 9241 3881 9238
      3900 9257 3924 9244 3925 9232 3995 9229
      3996 9235 4031 9234

$$

JPK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:01 PM CDT	Tornado Warning	LSX	Adams	29 min
Apr 17, 7:27 PM CDT	Tornado Warning	LSX	Adams, Brown, Pike	33 min
Apr 17, 7:46 PM CDT	Flash Flood Warning	LSX	Adams, Pike	8 hr
Apr 17, 8:00 PM CDT	Tornado Warning	LSX	Adams, Brown	30 min
Apr 18, 3:58 AM CDT	Wind Advisory	LSX	Bond, Clinton, Fayette, Macoupin, Madison, Marion and 5 more	9 hr
Apr 18, 9:10 AM CDT	Areal Flood Advisory	LSX	Monroe	7 hr
Apr 18, 10:21 AM CDT	Areal Flood Advisory	LSX	Bond, Fayette, Macoupin, Madison, Montgomery, Saint Clair	8 hr
Apr 18, 11:51 AM CDT	Flash Flood Warning	LSX	Bond, Clinton, Madison, Monroe, Saint Clair	6 hr
Apr 18, 12:46 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Fayette, Marion, Washington	44 min
Apr 18, 2:34 PM CDT	Areal Flood Advisory	LSX	Clinton, Marion, Randolph, Washington	4 hr
Apr 18, 6:01 PM CDT	Areal Flood Warning	LSX	Bond, Clinton, Madison, Monroe, Saint Clair	18 hr
Apr 18, 6:55 PM CDT	Areal Flood Warning	LSX	Bond, Clinton, Fayette, Marion, Randolph, Washington	18 hr
Apr 17, 7:39 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Marion, Shelby	51 min
Apr 17, 9:27 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Monroe, Ralls, Shelby	48 min
Apr 17, 9:40 PM CDT	Flash Flood Warning	LSX	Knox	6 hr
Apr 18, 5:15 AM CDT	River Flood Warning	LSX	Osage	54 hr
Apr 18, 6:01 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Washington	44 min
Apr 18, 8:36 AM CDT	River Flood Warning	LSX	Saint Charles	55 hr
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Jefferson	4 days
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Franklin	4 days
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Crawford	65 hr
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Crawford, Washington	4 days
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Franklin, Jefferson	5 days
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	5 days
Apr 18, 3:03 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	8 days
Apr 18, 3:34 PM CDT	Areal Flood Warning	LSX	Audrain, Boone, Knox, Lewis, Marion, Monroe and 2 more	24 hr

Nearby

Flash Flood Warnings in Missouri, 2013 Flash Flood Warnings in Illinois, 2013 Every flash flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.