Alert archive / Illinois / Flash Flood Warnings in 1993

Flash Flood Warning 13, NWS St. Louis, MO

June 19, 1993Lincoln County, Missouri; Calhoun County, Greene County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 19, 1993, 11:25 PM CDT for Lincoln County, Missouri; Calhoun County, Greene County, Illinois. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 19, 1993, 11:25 PM CDT (04:25 UTC)
Expired
Jun 20, 1993, 2:30 AM CDT
In force
3 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Calhoun County, IL, Greene County, IL, Lincoln County, MO

The radar

The St Louis radar (KLSX), 55 km from the middle of the area, began a volume at 04:26 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.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 4.4 hours before the alert went out and 292 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 00:00Z on 1993-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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, Paducah/Barkley, KY at 00:00Z on 1993-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
38 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1533 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
114 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 200426
FFWSTL
ILC013-061-MOC113-200730-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1125 PM CDT SAT JUN 19 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST ILLINOIS
 
   ...NORTHERN HALF OF CALHOUN COUNTY...GREENE COUNTY
 
 
IN EAST CENTRAL MISSOURI
 
   ...NORTHEAST LINCOLN COUNTY
 
BETWEEN 10 AND 11 PM...FLOODING CONTINUED TO BE REPORTED FROM NORTHEAST
LINCOLN COUNTY IN MISSOURI...THROUGH THE NORTHERN HALF OF CALHOUN COUNTY
IN ILLINOIS.
 
ALTHOUGH NO ADDITIONAL FLOODING REPORTS HAVE BEEN RECEIVED FROM GREENE
COUNTY ILLINOIS...RADAR INDICATES THAT EXCESSIVE RAINS ALSO OCCURRED IN
THIS COUNTY...MAKING FLASH FLOODING A REAL POSSIBILITY.
 
REPORTS FROM LAW ENFORCEMENT INDICATE THAT FLOODING HAS HIT HARDEST IN
AN AREA FROM AROUND ELSBERRY MISSOURI IN NORTHEAST LINCOLN COUNTY...TO
JUST NORTH OF HARDIN ILLINOIS...IN CALHOUN COUNTY.  SEVERAL
ROADS...INCLUDING MISSOURI HIGHWAY 79...HAVE BEEN MADE IMPASSIBLE BY
HIGH WATER...AND BY BRIDGES AND CULVERTS BEING SWEPT AWAY BY FLOOD
WATERS.  SOME EVACUATIONS ARE ALSO BEING MADE IN THE TOWN OF ELSBERRY.
 
AT 1125 PM...WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED SHOWERS
AND A FEW THUNDERSTORMS MOVING OVER THIS AREA AS WELL.  HOWEVER...THE
RAIN WAS MOVING EAST-NORTHEAST...AND IT APPEARS THAT MOST OF THE RAIN
SHOULD BE ENDING BETWEEN 12 MIDNIGHT AND 1 AM.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
MOST DEATHS IN FLASH FLOODING 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.
 $
TRUETT
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:22 PM CDTFlash Flood WarningLSXLincoln3 hr
Jun 19, 8:22 PM CDTFlash Flood WarningLSXCalhoun, Greene3 hr

Nearby

Flash Flood Warnings in Illinois, 1993Flash 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; radar from the NEXRAD Level II archive.