Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 37, NWS St. Louis, MO

June 9, 2009Reynolds County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jun 9, 2009, 5:02 PM CDT for Reynolds County, Missouri. It was in force for 7 hr. 1 report 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 9, 2009, 5:02 PM CDT (22:02 UTC)
Expired
Jun 9, 2009, 11:40 PM CDT
In force
7 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

County Reynolds County, MO

The radar

The St Louis radar (KLSX), 161 km from the middle of the area, began a volume at 22:04 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 9, 11:25 PM CDTFLASH FLOODEllington, MOROUTE F HAS BEEN CLOSED WEST OF HIGHWAY 106 DUE TO FLASH FLOODING ON UNKNOWN CREEK.

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 12:00Z, 10.0 hours before the alert went out and 250 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 12:00Z on 2009-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1981 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2009-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
1981 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 092202
FFWLSX
MOC179-100500-
/O.NEW.KLSX.FF.W.0037.090609T2202Z-090610T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
502 PM CDT TUE JUN 9 2009

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  REYNOLDS COUNTY IN SOUTHEAST MISSOURI

* UNTIL MIDNIGHT CDT WEDNESDAY

* AT 457 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE    
  WARNED AREA. RADAR ESTIMATES OF RAINFALL INDICATE UP TO 2 INCHES 
  OF RAIN MAY HAVE ALREADY FALLEN SOUTH OF A BUNKER...CENTERVILLE 
  LINE. ADDITIONAL THUNDERSTORMS OVER THE OZARKS ARE MOVING 
  EAST...AND WILL BRING ADDITIONAL RAINS OF 1 TO 3 INCHES TO THE 
  AREA EARLY THIS EVENING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BUNKER...ELLINGTON...GARWOOD...OATES AND REYNOLDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3705 9097 3709 9098 3710 9103 3716 9105
      3720 9114 3725 9114 3726 9117 3732 9119
      3741 9119 3742 9123 3750 9123 3751 9132
      3760 9132 3760 9078 3737 9078 3737 9075
      3716 9074 3714 9078 3705 9079

$$

KANOFSKY
1 follow-up statement
000 
WGUS73 KLSX 100440
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1140 PM CDT TUE JUN 9 2009

MOC179-100454-
/O.CAN.KLSX.FF.W.0037.000000T0000Z-090610T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
REYNOLDS MO-
1140 PM CDT TUE JUN 9 2009

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR REYNOLDS COUNTY IS
CANCELLED...

THE FLASH FLOOD WARNING HAS NOW BECOME AN AREAL FLOOD WARNING. 
RUNOFF FROM HEAVY RAINFALL WILL CONTINUE TO CAUSE LOCAL 
STREAMS...CREEKS AND RIVERS TO FLOOD LOW LYING AREAS OVERNIGHT. 

LAT...LON 3705 9097 3709 9098 3710 9103 3716 9105
      3720 9114 3725 9114 3726 9117 3732 9119
      3741 9119 3742 9123 3750 9123 3751 9132
      3760 9132 3760 9078 3737 9078 3737 9075
      3716 9074 3714 9078 3705 9079

$$

CVKING

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 7:07 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois, Washington38 min
Jun 8, 7:10 PM CDTFlash Flood WarningLSXReynolds5 hr
Jun 8, 7:17 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds13 min
Jun 8, 7:27 PM CDTSevere Thunderstorm WarningLSXIron, Madison, Reynolds48 min
Jun 8, 7:42 PM CDTTornado WarningLSXIron, Reynolds33 min
Jun 8, 8:19 PM CDTSevere Thunderstorm WarningLSXReynolds26 min
Jun 8, 8:47 PM CDTFlash Flood WarningLSXIron, Reynolds6 hr
Jun 9, 12:01 AM CDTAreal Flood WarningLSXReynolds6 hr
Jun 9, 3:05 AM CDTAreal Flood WarningLSXReynolds3 hr
Jun 9, 3:23 PM CDTSevere Thunderstorm WarningLSXReynolds52 min
Jun 9, 3:34 PM CDTTornado WarningLSXReynolds56 min
Jun 9, 4:00 PM CDTFlash Flood WatchLSXAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 16 more12 hr
Jun 9, 4:21 PM CDTTornado WarningLSXIron, Reynolds54 min
Jun 9, 6:46 PM CDTSevere Thunderstorm WarningLSXIron, Madison29 min

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.