Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 140, NWS Kansas City, MO

August 11, 1993Carroll County, Ray County, Missouri

NWS Kansas City, MO issued this flash flood warning at Aug 11, 1993, 11:43 PM CDT for Carroll County, Ray County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 11, 1993, 11:43 PM CDT (04:43 UTC)
Expired
Aug 12, 1993, 3:45 AM CDT
In force
4 hr
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Carroll County, MO, Ray County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.7 hours before the alert went out and 169 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 1993-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3832 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, Topeka, KS at 00:00Z on 1993-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 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
3832 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
329 m²/s²
Significant tornado parameter
2.9
Supercell composite
16.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Aug 11, 10:12 PM CDT, 1 hour 31 minutes before
MOZ-004-005-008-009-120340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
1010PM CDT WED AUG 11 1993

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF NORTHWEST MISSOURI...

AT 1000PM...SCATTERED THUNDERSTORMS...HAD DEVELOPED RAPIDLY OVER
THE KANSAS CITY AREA...WITH 1 INCH HAIL REPORTED AT LIBERTY.
THE STORMS WERE ALONG A LINE FROM NEAR LAWSON...THROUGH THE NORTH
PARTS OF THE KANSAS CITY AREA TO LEAVENWORTH AND FURTHER WEST.
THESE STORMS WERE MOVING EAST AT 30 MILES AN HOUR...
SEVERAL OF THESE STORMS HAVE THE POTENTIAL FOR SEVERE WEATHER...
ALONG WITH VERY HEAVY RAIN...AN INCH OR TWO PER HOUR...CAUSING
FLOODING IN SOME LOW LYING AREAS.
PERSONS IN LOW LYING AREAS SHOULD BE ON THE LOOKOUT WHEN WATER STARTS TO
RISE.  DO NOT WALK OR DRIVE THROUGH WATER THAT COVERS A ROADWAY.

KETCHAM
Special weather statement, Aug 11, 10:12 PM CDT, 1 hour 31 minutes before
MOZ-004-005-008-009-120340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
1010PM CDT WED AUG 11 1993

...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF NORTHWEST MISSOURI...

AT 1000PM...SCATTERED THUNDERSTORMS...HAD DEVELOPED RAPIDLY OVER
THE KANSAS CITY AREA...WITH 1 INCH HAIL REPORTED AT LIBERTY.
THE STORMS WERE ALONG A LINE FROM NEAR LAWSON...THROUGH THE NORTH
PARTS OF THE KANSAS CITY AREA TO LEAVENWORTH AND FURTHER WEST.
THESE STORMS WERE MOVING EAST AT 30 MILES AN HOUR...
SEVERAL OF THESE STORMS HAVE THE POTENTIAL FOR SEVERE WEATHER...
ALONG WITH VERY HEAVY RAIN...AN INCH OR TWO PER HOUR...CAUSING
FLOODING IN SOME LOW LYING AREAS.
PERSONS IN LOW LYING AREAS SHOULD BE ON THE LOOKOUT WHEN WATER STARTS TO
RISE.  DO NOT WALK OR DRIVE THROUGH WATER THAT COVERS A ROADWAY.

KETCHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 9:53 PM CDTSevere Thunderstorm WarningEAXClay37 min
Aug 11, 10:16 PM CDTSevere Thunderstorm WarningEAXRay44 min
Aug 11, 10:20 PM CDTSevere Thunderstorm WarningEAXPlatte40 min
Aug 11, 10:33 PM CDTSevere Thunderstorm WarningEAXClay42 min
Aug 11, 11:24 PM CDTFlash Flood WarningEAXGasconade, Osage3 hr
Aug 12, 12:22 AM CDTFlash Flood WarningEAXClay2 hr
Aug 12, 1:45 AM CDTFlash Flood WarningEAXBoone, Cooper, Howard, Moniteau, Saline3 hr
Aug 12, 1:45 AM CDTFlash Flood WarningEAXCallaway3 hr
Aug 12, 2:31 AM CDTFlash Flood WarningEAXCole, Moniteau119 min
Aug 12, 2:49 AM CDTFlash Flood WarningEAXCarroll, Ray3 hr
Aug 12, 3:48 AM CDTFlash Flood WarningEAXOsage3 hr
Aug 12, 4:20 AM CDTFlash Flood WarningEAXLafayette100 min
Aug 12, 4:43 AM CDTFlash Flood WarningEAXBoone, Cole, Cooper, Moniteau2 hr
Aug 12, 4:43 AM CDTFlash Flood WarningEAXCallaway2 hr
Aug 12, 4:56 AM CDTFlash Flood WarningEAXGasconade3 hr

Nearby

Flash Flood Warnings in Missouri, 1993Every flash flood warning in 1993

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.