Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 18, NWS St. Louis, MO

May 16, 2002Crawford County, Washington County, Missouri

NWS St. Louis, MO issued this flash flood warning at May 16, 2002, 9:27 PM CDT for Crawford County, Washington County, Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 16, 2002, 9:27 PM CDT (02:27 UTC)
Expired
May 17, 2002, 3:15 AM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Crawford County, MO, Washington County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.5 hours before the alert went out and 267 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 2002-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1170 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, Springfield, MO at 00:00Z on 2002-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
1170 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
1.5
Supercell composite
9.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 170227
FFWSTL
MOC055-221-170815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
921 PM CDT THU MAY 16 2002

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN EAST CENTRAL MISSOURI
  WASHINGTON COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 315 AM CDT

* THUNDERSTORMS WITH MODERATE TO OCCASIONALLY HEAVY RAIN HAVE BEEN
  PUSHING THROUGH CRAWFORD AND WASHINGTON COUNTIES SINCE AROUND 8
  PM.  RADAR INDICATES THAT PARTS OF WESTERN CRAWFORD COUNTY
  MAY HAVE ALREADY RECEIVED ONE AND ONE-HALF INCHES OF RAIN...AND
  REGIONAL RADAR DATA INDICATES THAT POCKETS OF HEAVY RAIN WILL
  PERSIST THROUGH MIDNIGHT.  WITH THE GROUND ALREADY SATURATED
  FROM THE RECENT WET WEATHER...AND WITH CREEKS AND STREAMS ALREADY
  RUNNING FULL...THIS EVENINGS RAIN WILL BE PRODUCING ADDITIONAL
  FLOODING PROBLEMS.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING THE CITIES OF STEELVILLE...CHERRYVILLE...CUBA...
  POTOSI...AND CALEDONIA.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE
ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS...
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

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

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 10:42 PM CDTFlash Flood WarningLSXIron, Madison, Saint Francois6 hr
May 16, 11:57 PM CDTFlash Flood WarningLSXReynolds5 hr

Nearby

Flash Flood Warnings in Missouri, 2002Every flash flood warning in 2002

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.