Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 32, NWS St. Louis, MO

July 7, 1993Lincoln County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 7, 1993, 9:19 AM CDT for Lincoln County, Missouri. It was in force for 109 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1993, 9:19 AM CDT (14:19 UTC)
Expired
Jul 7, 1993, 11:08 AM CDT
In force
109 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Lincoln County, MO

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 2.3 hours before the alert went out and 297 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, Paducah/Barkley, KY at 12:00Z on 1993-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1291 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, Paducah/Barkley, KY at 12:00Z on 1993-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
1291 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 071428 COR
FFWSTL
MOC113-071715-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE ST LOUIS MO
919 AM CDT WED JUL 7 1993

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL MISSOURI

   ...LINCOLN COUNTY

AT 910 AM...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN OVER
NORTHERN LINCOLN COUNTY FROM 15 MILES WEST THROUGH 20 MILES NORTHEAST OF
TROY. THIS IS ABOUT 50 MILES NORTHWEST OF ST LOUIS. THE THUNDERSTORMS
WERE MOVING NORTHEAST AT 30 MILES AN HOUR.

THE LINCOLN COUNTY SHERIFF REPORTED ABOUT 2 INCHES OF RAIN HAD FALLEN
OVER THE NORTHERN SECTIONS OF THE COUNTY.  WATER WAS BEGINNING FLOW OVER
SOME ROADS.  MORE THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED TO THE SOUT
FROM ST CHARLES COUNTY INTO WARREN COUNTY.  THESE STORMS WILL BE MOVING
ACROSS LINCOLN COUNTY THROUGH 11 AM.

THE ADDITIONAL HEAVY RAIN ON THE ALREADY SATURATED SOIL WILL CAUSE
ADDITIONAL FLOODING.

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.  VEHICLES CAUGHT IN RISING WATER WSHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

FERRY

&

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, Jul 7, 5:45 AM CDT, 3 hours 34 minutes before
MOZALL-081200-

MISSOURI SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
545 AM CDT WED JUL 7 1993

THUNDERSTORMS WILL BE WIDESPREAD ACROSS MISSOURI AGAIN TODAY AND
TONIGHT.  THERE IS A CHANCE THAT SOME OF THE THUNDERSTORMS WILL
BE SEVERE...GENERALLY NORTH OF A LINE FROM SPRINGFIELD TO ST LOUIS.

STORM SPOTTER GROUPS AND EMERGENCY MANAGERS SHOULD KEEP ADVISED OF THE
LATEST FORECAST FOR POSSIBLE SKYWARN ACTION.
Special weather statement, Jul 7, 6:07 AM CDT, 3 hours 12 minutes before
MOZALL-081200-

MISSOURI SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
545 AM CDT WED JUL 7 1993

THUNDERSTORMS WILL BE WIDESPREAD ACROSS MISSOURI AGAIN TODAY AND
TONIGHT.  THERE IS A CHANCE THAT SOME OF THE THUNDERSTORMS WILL
BE SEVERE...GENERALLY NORTH OF A LINE FROM SPRINGFIELD TO ST LOUIS.

STORM SPOTTER GROUPS AND EMERGENCY MANAGERS SHOULD KEEP ADVISED OF THE
LATEST FORECAST FOR POSSIBLE SKYWARN ACTION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 10:37 PM CDTFlash Flood WarningLSXFranklin3 hr
Jul 7, 12:36 AM CDTFlash Flood WarningLSXCrawford4 hr
Jul 7, 1:34 PM CDTSevere Thunderstorm WarningLSXFranklin41 min
Jul 7, 2:03 PM CDTFlash Flood WarningLSXSaint Charles5 hr
Jul 7, 2:16 PM CDTSevere Thunderstorm WarningLSXJefferson44 min

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.