Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 39, NWS St. Louis, MO

June 10, 20095 counties in Missouri

NWS St. Louis, MO issued this flash flood warning at Jun 10, 2009, 8:07 PM CDT for 5 counties in Missouri. It was in force for 6 hr. 2 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
Jun 10, 2009, 8:07 PM CDT (01:07 UTC)
Expired
Jun 11, 2009, 2:00 AM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Cole County, MO, Crawford County, MO, Gasconade County, MO, Moniteau County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 118 km from the middle of the area, began a volume at 01:07 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

TimeReportWhereRemark
Jun 10, 8:29 PM CDTFLOODJefferson City, MOSTANDING WATER ON COUNTY ROAD 17
Jun 10, 9:38 PM CDTFLASH FLOODLoose Creek, MOFLASH FLOODING OCCURRING FROM TORRENTIAL RAINFALL. 2.5 INCHES IN LAST HOUR.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 228 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, Springfield, MO at 00:00Z on 2009-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3767 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2009-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.19395878Sfc1 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
3767 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.9

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 110107
FFWLSX
MOC051-055-073-135-151-110700-
/O.NEW.KLSX.FF.W.0039.090611T0107Z-090611T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
807 PM CDT WED JUN 10 2009

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  COLE COUNTY IN CENTRAL MISSOURI
  CRAWFORD COUNTY IN EAST CENTRAL MISSOURI
  GASCONADE COUNTY IN EAST CENTRAL MISSOURI
  MONITEAU COUNTY IN CENTRAL MISSOURI
  OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 200 AM CDT

* AT 804 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LARGE AREA OF THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE  
  WARNED AREA. 1 TO LOCALLY 3 INCHES OF RAINFALL HAS ALREADY         
  OCCURRED ACROSS PORTIONS OF THE WARNING AREA. AN ADDITIONAL 1 TO   
  LOCALLY 3 INCHES OF RAINFALL IS POSSIBLE BEFORE MIDNIGHT. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BOURBON...CALIFORNIA...CUBA...HERMANN...JEFFERSON CITY...LINN...
  OWENSVILLE...STEELVILLE...TIPTON...BLAND...BRAZITO...CENTERTOWN...
  CHAMOIS...CHERRYVILLE...CLARKSBURG...DRAKE...FREEBURG...HICKORY
  HILL...HIGH POINT...JAMESTOWN...LEASBURG...MCGIRK...MOUNT
  STERLING...RICH FOUNTAIN...ROSEBUD...RUSSELLVILLE...ST. MARTINS...
  ST. THOMAS...TAOS AND WARDSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3869 9281 3869 9263 3892 9250 3867 9236
      3856 9211 3871 9174 3870 9138 3821 9138
      3820 9110 3770 9116 3770 9132 3778 9133
      3779 9154 3815 9153 3816 9166 3828 9166
      3833 9241 3842 9241 3843 9263 3859 9284

$$

CVKING
2 follow-up statements
000 
WGUS73 KLSX 110428
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1128 PM CDT WED JUN 10 2009

MOC051-055-073-135-151-110700-
/O.CON.KLSX.FF.W.0039.000000T0000Z-090611T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD MO-OSAGE MO-GASCONADE MO-COLE MO-MONITEAU MO-
1128 PM CDT WED JUN 10 2009

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MONITEAU...COLE...
GASCONADE...OSAGE AND CRAWFORD COUNTIES UNTIL 200 AM CDT...

ALTHOUGH THE THUNDERSTORMS AND RAINFALL HAVE ENDED...WIDESPREAD 
RAINFALL AMUNTS OF 1 TO 2 INCHES WITH LOCALIZED AMOUNTS OF UP TO 4 
INCHES WILL CONTINUE TO RUN OFF TONIGHT KEEPING CREEKS AND STREAMS 
RUNNING HIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AT 830 PM...A SPOTTER REPORTED FLASH FLOODING OF LOOSES CREEK IN 
OSAGE COUNTY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS.

&&

LAT...LON 3869 9281 3869 9263 3892 9250 3867 9236
      3856 9211 3871 9174 3870 9138 3821 9138
      3820 9110 3770 9116 3770 9132 3778 9133
      3779 9154 3815 9153 3816 9166 3828 9166
      3833 9241 3842 9241 3843 9263 3859 9284

$$

MILLER
000 
WGUS73 KLSX 110659
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
159 AM CDT THU JUN 11 2009

MOC051-055-073-135-151-110714-
/O.EXP.KLSX.FF.W.0039.000000T0000Z-090611T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD MO-OSAGE MO-GASCONADE MO-COLE MO-MONITEAU MO-
159 AM CDT THU JUN 11 2009

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MONITEAU...COLE...
GASCONADE...OSAGE AND CRAWFORD COUNTIES WILL BE ALLOWED TO EXPIRE AT
200 AM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3869 9281 3869 9263 3892 9250 3867 9236
      3856 9211 3871 9174 3870 9138 3821 9138
      3820 9110 3770 9116 3770 9132 3778 9133
      3779 9154 3815 9153 3816 9166 3828 9166
      3833 9241 3842 9241 3843 9263 3859 9284

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 7:07 PM CDTTornado WarningLSXCole, Moniteau38 min
Jun 10, 7:07 PM CDTTornado WarningLSXCrawford23 min
Jun 10, 7:35 PM CDTTornado WarningLSXCrawford40 min
Jun 10, 7:37 PM CDTSevere Thunderstorm WarningLSXCole, Osage38 min
Jun 10, 7:43 PM CDTSevere Thunderstorm WarningLSXGasconade, Osage47 min
Jun 10, 7:47 PM CDTTornado WarningLSXMoniteau21 min
Jun 10, 8:06 PM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Montgomery, Osage, Warren24 min
Jun 10, 8:11 PM CDTSevere Thunderstorm WarningLSXFranklin49 min
Jun 10, 8:27 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis, City of Saint Louis37 min
Jun 10, 8:43 PM CDTSevere Thunderstorm WarningLSXCrawford34 min
Jun 10, 8:44 PM CDTSevere Thunderstorm WarningLSXCallaway, Gasconade, Montgomery, Osage, Warren22 min
Jun 10, 8:49 PM CDTFlash Flood WarningLSXFranklin, Jefferson, Saint Louis, Washington, City of Saint Louis6 hr
Jun 11, 6:36 AM CDTRiver Flood WarningLSXOsage7 hr
Jun 11, 10:02 AM CDTRiver Flood WarningLSXCallaway, Osage71 hr
Jun 11, 10:02 AM CDTRiver Flood WarningLSXGasconade, Montgomery4 days
Jun 11, 10:11 AM CDTRiver Flood WarningLSXGasconade, Montgomery71 hr

Nearby

Flash Flood Warnings in Missouri, 2009Every flash flood warning in 2009

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.