Alert archive / Missouri / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 84, NWS St. Louis, MO

June 30, 1993Monroe County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 30, 1993, 4:13 PM CDT for Monroe County, Missouri. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1993, 4:13 PM CDT (21:13 UTC)
Expired
Jun 30, 1993, 4:45 PM CDT
In force
32 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Monroe County, MO

The radar

The St Louis radar (KLSX), 144 km from the middle of the area, began a volume at 21:23 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, 9.2 hours before the alert went out and 318 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 1993-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 764 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 1993-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 square meters per square second.193958Sfc1 km3 km6 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
764 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
1154 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSTL 302114
SVRLSX
MOC137-302145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
413 PM CDT WED JUN 30 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...EASTERN MONROE COUNTY
 
AT 410 PM...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR
INDIAN CREEK...OR 25 MILES WEST OF HANNIBAL. THIS STORM WAS MOVING TO
THE SOUTHEAST AT 15 MPH.
 
IF YOU ARE IN THE PATH OF THIS STORM TAKE SHELTER IMMEDIATELY.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
GLASS

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 30, 11:55 AM CDT, 4 hours 18 minutes before
MOZ001-002-003-004-005-301900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1155 AM CDT WED JUN 30 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MUCH OF NORTHERN
MISSOURI UNTIL 700 PM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR
MUCH OF NORTHERN MISSOURI UNTIL 700 PM THIS EVENING.  THIS WATCH
INCLUDES THE CITIES OF ST JOSEPH...SPICKARD...MARYVILLE...AND
KIRKSVILLE.

AT 1155 PM...WEATHER SERVICE RADARS SHOWED THUNDERSTORMS DEVELOPING
ACROSS PORTIONS OF NORTHWEST MISSOURI.  THUNDERSTORMS WILL CONTINUE TO
DEVELOP ACROSS NORTHERN MISSOURI THIS AFTERNOON...SOME POSSIBLY BECOMING
SEVERE.

AS A REMINDER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO
THE WATCH AREA.

PEOPLE LIVING IN NORTHERN MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO
NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR
WARNINGS.

GLASS
Special weather statement, Jun 30, 1:05 PM CDT, 3 hours 8 minutes before
MOZ004-005-008-009-013-302000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
105 PM CDT WED JUN 30 1993

...A TORNADO WATCH IS IN EFFECT FOR WEST CENTRAL AND PORTIONS OF
NORTHWEST MISSOURI UNTIL 800 PM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR WEST CENTRAL
MISSOURI AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM THIS EVENING.
PORTIONS OF NORTHWEST MISSOURI WHICH WERE IN AN EARLIER SEVERE
THUNDERSTORM WATCH HAVE BEEN UPGRADED TO A TORNADO WATCH.  THIS WATCH
INCLUDES THE CITIES OF ST JOSEPH...THE KANSAS CITY METROPOLITAN
AREA AND SEDALIA.

A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.

PEOPLE LIVING IN WEST CENTRAL AND NORTHWEST MISSOURI SHOULD REMAIN ALERT
AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER
STATEMENTS AND OR WARNINGS.

GLASS
Special weather statement, Jun 30, 1:07 PM CDT, 3 hours 6 minutes before
MOZ004-005-008-009-013-302000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
105 PM CDT WED JUN 30 1993

...A TORNADO WATCH IS IN EFFECT FOR WEST CENTRAL AND PORTIONS OF
NORTHWEST MISSOURI UNTIL 800 PM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR WEST CENTRAL
MISSOURI AND PORTIONS OF NORTHWEST MISSOURI UNTIL 800 PM THIS EVENING.
PORTIONS OF NORTHWEST MISSOURI WHICH WERE IN AN EARLIER SEVERE
THUNDERSTORM WATCH HAVE BEEN UPGRADED TO A TORNADO WATCH.  THIS WATCH
INCLUDES THE CITIES OF ST JOSEPH...THE KANSAS CITY METROPOLITAN
AREA AND SEDALIA.

A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
TORNADOES AND SEVERE THUNDERSTORMS IN ANXD CLOSE TO THE WATCH AREA.

PEOPLE LIVING IN WEST CENTRAL AND NORTHWEST MISSOURI SHOULD REMAIN ALERT
AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER
STATEMENTS AND OR WARNINGS.

GLASS
Special weather statement, Jun 30, 3:15 PM CDT, 58 minutes before
MOZ006-009-010-011-013-014-302130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
315 PM CDT WED JUN 30 1993

...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI...

AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST
WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH.  THE
STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20
MILES NORTHEAST OF THE CITY OF MOBERLY.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL AND DANGEROUS
LIGHTNING WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL
MISSOURI THIS AFTERNOON.  THE CITY OF MOBERLY WILL SEE THE FIRST RAIN
AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN
PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL
MISSOURI.  SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE
IS ALSO POSSIBLE AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD
STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER
RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS.

PERLOW

:=*K296QJZ/r)zUbZN5J><y"*~Fbf
FN*"j
Special weather statement, Jun 30, 3:26 PM CDT, 47 minutes before
MOZ006-009-010-011-013-014-302130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
315 PM CDT WED JUN 30 1993

...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI...

AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST
WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH.  THE
STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20
MILES NORTHEAST OF THE CITY OF MOBERLY.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL AND DANGEROUS
LIGHTNING WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL
MISSOURI THIS AFTERNOON.  THE CITY OF MOBERLY WILL SEE THE FIRST RAIN
AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN
PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL
MISSOURI.  SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE
IS ALSO POSSIBLEt AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD
STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER
RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS.

PERLOW
Special weather statement, Jun 30, 3:31 PM CDT, 42 minutes before
MOZ006-009-010-011-013-014-302130-

SPECIAL WEATHER STATEMENT...CORRECTION IN TEXT
NATIONAL WEATHER SERVICE COLUMBIA MO
315 PM CDT WED JUN 30 1993

...VERY STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTH CENTRAL MISSOURI...

AT 315 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WERE LOCATED JUST
WEST AND NORTHEAST OF THE TOWN OF MOBERLY MOVING EAST AT 20 MPH.  THE
STRONGEST STORM WAS JUST SOUTH OF THE COMMUNITY OF SHELBINA...OR 20
MILES NORTHEAST OF THE CITY OF MOBERLY.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING...SMALL HAIL...AND HEAVY
DOWNPOURS WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS NORTH CENTRAL
MISSOURI THIS AFTERNOON.  THE CITY OF MOBERLY WILL SEE THE FIRST RAIN
AROUND 330 PM...FOLLOWED BY SEVERAL PERIODS OF STORMY WEATHER.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN
PORTIONS OF MISSOURI...AND A TORNADO WATCH OVER PARTS OF WEST CENTRAL
MISSOURI.  SEVERE WEATHER DEVELOPMENT IN THE CENTRAL PART OF THE STATE
IS ALSO POSSIBLE AND RESIDENTS LIVING CLOSE TO THE WATCH AREAS SHOULD
STAY ABREAST OF DEVELOPING WEATHER CONDITIONS AND STAY TUNED TO WEATHER
RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS.

PERLOW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 4:20 AM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson40 min
Jun 30, 4:50 AM CDTSevere Thunderstorm WarningLSXWashington40 min
Jun 30, 5:23 AM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois52 min
Jun 30, 3:17 PM CDTSevere Thunderstorm WarningLSXMonroe, Shelby43 min
Jun 30, 3:51 PM CDTSevere Thunderstorm WarningLSXRalls54 min
Jun 30, 4:55 PM CDTSevere Thunderstorm WarningLSXPike50 min
Jun 30, 5:24 PM CDTTornado WarningLSXLincoln66 min
Jun 30, 5:24 PM CDTTornado WarningLSXPike43 min
Jun 30, 6:25 PM CDTTornado WarningLSXLincoln38 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.