Alert archive / Missouri / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 59, NWS St. Louis, MO

May 24, 1994Clark County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 24, 1994, 6:25 PM CDT for Clark County, Missouri. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
May 24, 1994, 6:25 PM CDT (23:25 UTC)
Expired
May 24, 1994, 7:05 PM CDT
In force
40 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Clark County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.4 hours before the alert went out and 369 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 1994-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 545 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 1994-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
545 J/kg
Mixed-layer CIN
-206 J/kg
Mixed-layer LCL
1285 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
19 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 242329
SVRSTL
MOC045-103-111-250030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
625 PM CDT TUE MAY 24 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST MISSOURI
 
   ...SOUTHERN CLARK COUNTY...KNOX COUNTY...LEWIS COUNTY
 
AT 626 PM...NWS DOPPLER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS
FROM 10 MILES NORTHEAST OF EDINA IN KNOX COUNTY TO FAIRMONT IN CLARK
COUNTY TO NEAR GREGORY LANDING IN CLARK COUNTY.  STORM MOVEMENT WAS
SOUTHEAST ABOUT 25 MPH.
 
THESE STORMS WILL BE MOVING INTO KNOX CITY AND MONTICELLO BY 645 PM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
VA/EHG

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, May 24, 5:06 PM CDT, 1 hour 19 minutes before
MOZALL-242300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
502 PM CDT TUE MAY 24 1994

...SEVERE THUNDERSTORM WATCH FOR NORTHERN AND CENTRAL MISSOURI...AND
WEST CENTRAL ILLINOIS...UNTIL 11 PM...

SINCE 4 PM...THUNDERSTORMS HAVE BEEN DEVELOPING FROM NORTHERN MISSOURI
INTO CENTRAL ILLINOIS.  THIS DEVELOPMENT WILL CONTINUE THROUGHOUT THE
EVENING...AND A FEW OF THESE STORMS HAVE THE POTENTIAL OF PRODUCING
DAMAGING WINDS...LARGE HAIL...AND VERY HEAVY RAINS.

PEOPLE THROUGHOUT NORTHERN AND CENTRAL MISSOURI AND WEST CENTRAL
ILLINOIS...INCLUDING THE TOWNS OF KIRKSVILLE...HANNIBAL...AND QUINCY
ILLLINOIS...SHOULD MONITOR WEATHER DEVELOPMENTS THROUGHOUT THE EVENING.
BE READY TO MOVE TO A PLACE OF SAFETY IF DANGEROUS WEATHER
THREATENS...OR IF A WARNING IS ISSUED FOR YOUR AREA.

TRUETT
Special weather statement, May 24, 5:17 PM CDT, 1 hour 8 minutes before
MOZ017-010-018-019-027-034-035-008-009-026-ILZ095-096-097-242315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
517 PM CDT TUE MAY 24 1994

...STRONG THUNDERSTORMS OVER NORTHEAST MISSOURI AND WEST CENTRAL
ILLINOIS...

AT 515 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS...WITH
HEAVY RAIN AND SMALL HAIL...SCATTERED FROM NEAR KEOKUK IOWA TO THE
CITIES OF MACON AND MOBERLY IN MISSOURI.

THESE STORMS ARE MOVING EAST AT 30 MILES AN HOUR...AND WILL CONTINUE TO
SPREAD ACROSS NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS DURING THE
NEXT FEW HOURS.  SINCE THERE IS THE POTENTIAL FOR THESE STORMS TO
STRENGTHEN...LARGE HAIL AND DAMAGING WINDS MAY DEVELOP IN THE STRONGER
STORMS.  PEOPLE IN THE PATH OF THESE STORMS SHOULD CONTINUE TO MONITOR
WEATHER DEVELOPMENTS...AND BE READY TO MOVE TO A PLACE OF SAFETY IF
NECESSARY.

SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHEAST MISSOURI AND WEST
CENTRAL ILLINOIS UNTIL 11 PM.

TRUETT
Special weather statement, May 24, 5:21 PM CDT, 1 hour 4 minutes before
MOZ017-010-018-019-027-034-035-008-009-026-ILZ095-096-097-242315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
517 PM CDT TUE MAY 24 1994

...STRONG THUNDERSTORMS OVER NORTHEAST MISSOURI AND WEST CENTRAL
ILLINOIS...

AT 515 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS...WITH
HEAVY RAIN AND SMALL HAIL...SCATTERED FROM NEAR KEOKUK IOWA TO THE
CITIES OF MACON AND MOBERLY IN MISSOURI.

THESE STORMS ARE MOVING EAST AT 30 MILES AN HOUR...AND WILL CONTINUE TO
SPREAD ACROSS NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS DURING THE
NEXT FEW HOURS.  SINCE THERE IS THE POTENTIAL FOR THESE STORMS TO
STRENGTHEN...LARGE HAIL AND DAMAGING WINDS MAY DEVELOP IN THE STRONGER
STORMS.  PEOPLE IN THE PATH OF THESE STORMS SHOULD CONTINUE TO MONITOR
WEATHER DEVELOPMENTS...AND BE READY TO MOVE TO A PLACE OF SAFETY IF
NECESSARY.

SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHEAST MISSOURI AND WEST
CENTRAL ILLINOIS UNTI"L 11 PM.

TRUETT
Special weather statement, May 24, 5:46 PM CDT, 39 minutes before
MOZ010-009-242345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
546 PM CDT TUE MAY 24 1994

...SEVERE THUNDERSTORM WARNING FOR EASTERN CLARK COUNTY MISSOURI
CONTINUES UNTIL 6 PM...

AT 545 PM...WEATHER SERVICE RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM OVER EXTREME EASTERN CLARK COUNTY ALONG THE MISSISSIPPI
RIVER...SOUTH OF ALEXANDRIA.  THE STORM CONTINUED MOVING EAST AT 30
MILES AN HOUR.

WHILE THIS STORM HAS BEEN WEAKENING IN INTENSITY...OTHER STRONG
THUNDERSTORMS ARE DEVELOPING OVER SCOTLAND COUNTY...JUST SOUTH OF
MEMPHIS.  THESE STORMS ARE MOVING EAST-SOUTHEAST AT 30 MILES AN
HOUR...AND MAY BRING AN ADDITIONAL SEVERE WEATHER THREAT TO EXTREME
NORTHETAST MISSOURI DURING THE NEXT HOUR OR SO.

PEOPLE IN THE PATH OF THESE STORMS SHOULD BE READY TO MOVE TO A PLACE OF
SAFETY AT A MOMENTS NOTICE...AND SHOULD CONTINUE TO MONITOR LOCAL RADIO
AND TV STATIONS FOR FURTHER INFORMATION.

TRUETT
Special weather statement, May 24, 5:48 PM CDT, 37 minutes before
MOZ010-009-242345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
546 PM CDT TUE MAY 24 1994

...SEVERE THUNDERSTORM WARNING FOR EASTERN CLARK COUNTY MISSOURI
CONTINUES UNTIL 6 PM...

AT 545 PM...WEATHER SERVICE RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM OVER EXTREME EASTERN CLARK COUNTY ALONG THE MISSISSIPPI
RIVER...SOUTH OF ALEXANDRIA.  THE STORM CONTINUED MOVING EAST AT 30
MILES AN HOUR.

WHILE THIS STORM HAS BEEN WEAKENING IN INTENSITY...OTHER STRONG
THUNDERSTORMS ARE DEVELOPING OVER SCOTLAND COUNTY...JUST SOUTH OF
MEMPHIS.  THESE STORMS ARE MOVING EAST-SOUTHEAST AT 30 MILES AN
HOUR...AND MAY BRING AN ADDITIONAL SEVERE WEATHER THREAT TO EXTREME
NORTHETAST MJISSOURI DURING THE NEXT HOUR OR SO.

PEOPLE IN THE PATH OF THESE STORMS SHOULD BE READY TO MOVE TO A PLACE OF
SAFETY AT A MOMENTS NOTICE...AND SHOULD CONTINUE TO MONITOR LOCAL RADIO
AND TV STATIONS FOR FURTHER INFORMATION.

TRUETT
Special weather statement, May 24, 6:10 PM CDT, 15 minutes before
MOZ008-009-010-018-019-026-027-034-035-026-ILZ095-096-097-250005-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
610 PM CDT TUE MAY 24 1994

...STRONG THUNDERSTORMS CONTINUED ACROSS NORTHEAST MISSOURI AND WEST
CENTRAL ILLINOIS...

AT 610 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS...WITH HEAVY RAIN AND SMALL HAIL...SCATTERED FROM
KIRKSVILLE THROUGH EDINA IN KNOX COUNTY TO ALEXANDRIA IN CLARK COUNTY.
THESE STORMS WERE MOVING TO THE EAST AROUND 25 MILES AN HOUR.

AT 605 PM...PEA SIZE HAIL AND HEAVY RAIN WAS REPORTED IN KIRKSVILLE.
SINCE THERE IS THE POTENTIAL FOR THESE STORMS TO STRENGTHEN...LARGE
HAIL AND DAMAGING WINDS MAY DEVELOP IN THE STRONGER STORMS.  PEOPLE IN
THE PATH OF THESE STORMS SHOULD CONTINUE TO MONITOR WEATHER
DEVELOPMENTS...AND BE READY TO MOVE TO A PLACE OF SAFETY IF NECESSARY.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHEAST MISSOURI AND
WEST CENTRAL ILLINOIS UNTIL 11OO PM.

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 5:23 PM CDTSevere Thunderstorm WarningLSXClark37 min
May 24, 6:25 PM CDTSevere Thunderstorm WarningLSXKnox, Lewis65 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1994Every severe thunderstorm 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.