Alert archive / Missouri / Flash Flood Warnings in 1994

Flash Flood Warning 8, NWS Kansas City, MO

April 11, 1994Pettis County, Missouri

NWS Kansas City, MO issued this flash flood warning at Apr 11, 1994, 4:12 AM CDT for Pettis County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 1994, 4:12 AM CDT (09:12 UTC)
Expired
Apr 11, 1994, 8:15 AM CDT
In force
4 hr
Issued by
NWS Kansas City, MO
Area
Whole counties

County Pettis County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 9.2 hours before the alert went out and 206 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, Topeka, KS at 00:00Z on 1994-04-11Temperature 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, Topeka, KS at 00:00Z on 1994-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.1939587897Sfc1 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
915 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
459 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 110915 COR
FFWCOU
MOC085-089-159-195-111315-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE COLUMBIA MO
412 AM CDT MON APR 11 1994

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  815 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN CENTRAL MISSOURI

   ...HICKORY COUNTY...HOWARD COUNTY...PETTIS COUNTY
   ...SALINE COUNTY...COOPER

AT 400 AM WIDESPREAD RAIN AND SCATTERED THUNDERSTORMS WERE CAUSING MANY
STREAMS TO REACH THIER BANKS. MOST FLOODING SO FAR HAS BEEN ON LOW SPOTS
IN COUNTY ROADS BUT ADDITIONAL RAIN WILL CAUSE THE FLOODING TO BECOME
MUCH WORSE.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.


KENNEDY

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 10, 11:40 PM CDT, 4 hours 32 minutes before
MOZ028>031-037-038-043-044-053-054-067-KSZ057-060-103>105-110640-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MO
1136 PM CDT SUN APR 10 1994

...THUNDERSTORMS WITH VERY HEAVY RAIN WERE MOVING BACK INTO PARTS OF
WEST CENTRAL MISSOURI...

AT 1130 PM...SHOWERS AND THUNDERSTORMS...SOME WITH VERY HEAVY RAIN WERE
MOVING BACK INTO THE WEST CENTRAL MISSOURI COUNTIES OF BATES...HENRY
AND ST CLAIR.  THESE STORMS MAY PRODUCE OVER AN INCH OF RAIN PER HOUR
AS THEY MOVE NORTHEAST AT 30 MPH.

IN ADDITION...SHOWERS AND THUNDERSTORMS WERE BECOMING WIDESPREAD AGAIN
ACROSS SOUTHEAST KANSAS. AS THE GROUND IS ALREADY SATURATED
...THIS ADDITIONAL RAINFALL MAY LEAD TO FLOODING.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR WEST CENTRAL AND SOUTHWEST
MISSOURI TO THE SOUTH OF KANSAS CITY. MOTORISTS TRAVELING THROUGH
THE REGION SHOULD BE ALERT FOR FLOODING.  REMEMBER THAT FLOODING IS
ESPECIALLY HARD TO RECOGNIZE IN THE DARK.

RUNNELS

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 11:55 PM CDTFlash Flood WarningEAXBates, Henry, St. Clair6 hr
Apr 11, 12:31 AM CDTFlash Flood WarningEAXCole, Maries, Miller, Moniteau, Osage4 hr
Apr 11, 12:31 AM CDTFlash Flood WarningEAXAudrain, Boone, Callaway4 hr
Apr 11, 12:31 AM CDTFlash Flood WarningEAXBenton4 hr
Apr 11, 1:23 AM CDTFlash Flood WarningEAXCamden3 hr
Apr 11, 4:12 AM CDTFlash Flood WarningEAXHickory4 hr
Apr 11, 4:12 AM CDTFlash Flood WarningEAXHoward, Saline4 hr
Apr 11, 4:33 AM CDTFlash Flood WarningEAXBenton, Camden, Miller4 hr
Apr 11, 4:33 AM CDTFlash Flood WarningEAXCole, Moniteau, Osage4 hr
Apr 11, 4:33 AM CDTFlash Flood WarningEAXMaries4 hr
Apr 11, 4:33 AM CDTFlash Flood WarningEAXAudrain, Boone, Callaway4 hr
Apr 11, 5:48 AM CDTFlash Flood WarningEAXMorgan3 hr
Apr 11, 6:00 AM CDTFlash Flood WarningEAXBates, Henry, St. Clair4 hr
Apr 11, 8:45 AM CDTFlash Flood WarningEAXPulaski3 hr

Nearby

Flash Flood Warnings in Missouri, 1994Every flash flood warning in 1994

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.