Alert archive / Missouri / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 59, NWS St. Louis, MO

June 24, 1993Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 24, 1993, 6:18 PM CDT for Lewis County, Missouri. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jun 24, 1993, 6:18 PM CDT (23:18 UTC)
Expired
Jun 24, 1993, 6:45 PM CDT
In force
27 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Lewis County, MO

The radar

The St Louis radar (KLSX), 179 km from the middle of the area, began a volume at 23:22 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

Topeka, KS (KTOP), launched 12:00Z, 11.3 hours before the alert went out and 357 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 12:00Z on 1993-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1579 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 12:00Z on 1993-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 318 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
1579 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
795 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
318 m²/s²
0-3 km storm-relative helicity
328 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 242322
SVRSTL
MOC111-242345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
618 PM CDT THU JUN 24 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...EASTERN LEWIS COUNTY
 
AT 617 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE
THUNDERSTORMS FROM 10 MILES NORTH OF CANTON TO EWING OR 20 MILES WEST
THROUGH NORTHWEST OF QUINCY ILLINOIS.
 
THE THUNDERSTORMS WERE MOVING EAST AT 20 MPH AND WILL OVER THE
MISSISSIPPI RIVER FROM LAGRANGE...NORTH BY 645 PM.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
 
DLF/GT

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Jun 24, 5:05 PM CDT, 1 hour 13 minutes before
MOZ002-005-008-242300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
505 PM CDT THU JUN 24 1993

SECTIONS OF NORTH CENTRAL AND WESTERN MISSOURI HAVE BEEN CLEARED FROM
SEVERE THUNDERSTORM WATCH NUMBER 494.  THE WATCH IS NO LONGER IN EFFECT
IN THE FOLLOWING COUNTIES...

PLATTE           CLAY             JACKSON           CASS
CALDWELL         LIVINGSTON       RAY               CARROLL
HARRISON         MERCER           PUTNAM            DAVIESS
GRUNDY           SULLIVAN

IN ADDITION...THE WATCH IS NO LONGER IN EFFECT FOR THE KANSAS CITY
METRO AREA...AS WELL AS FOR THE CITIES OF CHILICOTHE AND TRENTON.

HOWEVER...THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF
NORTHEAST AND WEST CENTRAL MISSOURI...INCLUDING THE KIRKSVILLE...MACON
...SEDALIA...AND NEVADA AREAS...UNTIL 9 PM.

TRUETT
Special weather statement, Jun 24, 5:08 PM CDT, 1 hour 10 minutes before
MOZ002-005-008-242300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
505 PM CDT THU JUN 24 1993

SECTIONS OF NORTH CENTRAL AND WESTERN MISSOURI HAVE BEEN CLEARED FROM
SEVERE THUNDERSTORM WATCH NUMBER 494.  THE WATCH IS NO LONGER IN EFFECT
IN THE FOLLOWING COUNTIES...

PLATTE           CLAY             JACKSON           CASS
CALDWELL         LIVINGSTON       RAY               CARROLL
HARRISON         MERCER           PUTNAM            DAVIESS
GRUNDY           SULLIVAN

IN ADDITION...THE WATCH IS NO LONGER IN EFFECT FOR THE KANSAS CITY
METRO AREA...AS WELL AS FOR THE CITIES OF CHILICOTHE AND TRENTON.

HOWEVER...THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF
NORTHEAST AND WEST CENTRAL MISSOURI...INCLUDING THE KIRKSVILLE...MACON
...SEDALIA...AND NEVADA AREAS...UNTIL 9 PM.

TRUETT
Special weather statement, Jun 24, 5:20 PM CDT, 58 minutes before
MOZ003-007-242315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
520 PM CDT THU JUN 24 1993

...STRONG THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTHEAST MISSOURI...

AT 515 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS OVER NORTHEAST MISSOURI.  ONE STORM WAS NEAR NEAR LA BELLE
OR 35 MILES EAST OF KIRKSVILLE.  ANOTHER STORM WAS LOCATED NEAR KAHOKIA.
OR 45 MILES NORTHEAST OF KIRKSVILLE.  THE STORMS WERE MOVING NORTHEAST
AT 25 MPH.

THESE STORMS WILL PRODUCE VERY HEAVY RAINS WHICH WILL CAUSE PONDING OF
WATER IN LOW LYING AREAS.  HAIL AND WIND GUSTS OVER 40 MPH ARE POSSIBLE
FROM THESE STORMS.   THE STORMS WILL BE PASSING THROUGH OR NEAR THE
TOWNS OF REVERE...WILLIAMSTOWN AND FENWAY BY 615 PM.

IF YOU ARE IN THE PATH OF THESE STORMS...BE READY TO MOVE TO A PLACE OF
SAFETY.  ALSO...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS
OF NORTHEAST MISSOURI UNTIL 9 PM.

FERRY/TUCKER
Special weather statement, Jun 24, 5:24 PM CDT, 54 minutes before
MOZ003-007-242315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
520 PM CDT THU JUN 24 1993

...STRONG THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTHEAST MISSOURI...

AT 515 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS OVER NORTHEAST MISSOURI.  ONE STORM WAS NEAR NEAR LA BELLE
OR 35 MILES EAST OF KIRKSVILLE.  ANOTHER STORM WAS LOCATED NEAR KAHOKIA.
OR 45 MILES NORTHEAST OF KIRKSVILLE.  THE STORMS WERE MOVING NORTHEAST
AT 25 MPH.

THESE STORMS WILL PRODUCE VERY HEAVY RAINS WHICH WILL CAUSE PONDING OF
WATER IN LOW LYING AREAS.  HAIL AND WIND GUSTS OVER 40 MPH ARE POSSIBLE
FROM THESE STORMS.   THE STORMS WILL BE PASSING THROUGH OR NEAR THE
TOWNS OF REVERE...WILLIAMSTOWN AND FENWAY BY 615 PM.

IF YOU ARE IN THE PATH OF THESE STORMS...BE READY TO MOVE TO A PLACE OF
SAFETY.  ALSO...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS
OF NORTHEAST MISSOURI UNTIL 9 PM.

FERRY/TUCKER
 
Special weather statement, Jun 24, 5:40 PM CDT, 38 minutes before
MOZ006-009-010-013-014-242340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CDT THU JUN 24 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM CDT FOR PARTS
OF WEST CENTRAL AND NORTH CENTRAL MISSOURI...

AT 435 PM CDT STRONG THUNDERSTORMS WITH VERY HEAVY SHOWERS WERE
SCATTERED IN A LINE ABOUT 15 MILES WIDE EXTENDING FROM WARRENSBURG...45
MILES SOUTHEAST OF KANSAS CITY...THROUGH MARSHALL TO 50 MILES NORTH OF
COLUMBIA..AROUND CLARENCE.  OTHER THUNDERSTORMS WITH HEAVY SHOWERS WERE
NOTED OVER AND AROUND WARSAW...ABOUT 65 MILES SOUTHWEST OF COLUMBIA...UP
TO SEDALIA.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AROUND 25 MILES AN HOUR.
NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL MISSOURI THIS AFTERNOON...
HOWEVER...THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL AND
WINDS GUSTING ABOVE 45 MILES AN HOUR AS WELL AS TORRENTIAL RAINFALL.

LB/DK
Special weather statement, Jun 24, 5:47 PM CDT, 31 minutes before
MOZ006-009-010-013-014-242340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CDT THU JUN 24 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM CDT FOR PARTS
OF WEST CENTRAL AND NORTH CENTRAL MISSOURI...

AT 435 PM CDT STRONG THUNDERSTORMS WITH VERY HEAVY SHOWERS WERE
SCATTERED IN A LINE ABOUT 15 MILES WIDE EXTENDING FROM WARRENSBURG...45
MILES SOUTHEAST OF KANSAS CITY...THROUGH MARSHALL TO 50 MILES NORTH OF
COLUMBIA..AROUND CLARENCE.  OTHER THUNDERSTORMS WITH HEAVY SHOWERS WERE
NOTED OVER AND AROUND WARSAW...ABOUT 65 MILES SOUTHWEST OF COLUMBIA...UP
TO SEDALIA.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AROUND 25 MILES AN HOUR.
NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL MISSOURI THIS AFTERNOON...
HOWEVER...THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL AND
WINDS GUSTING ABOVE 45 MILES AN HOUR AS WELL AS TORRENTIAL RAINFALL.

LB/DK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 5:34 PM CDTSevere Thunderstorm WarningLSXClark, Lewis41 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1993Every severe thunderstorm 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.