Alert archive / Missouri / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 71, NWS St. Louis, MO

June 12, 1994Shelby County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 12, 1994, 1:42 PM CDT for Shelby County, Missouri. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1994, 1:42 PM CDT (18:42 UTC)
Expired
Jun 12, 1994, 2:22 PM CDT
In force
40 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Shelby County, MO

The radar

The St Louis radar (KLSX), 171 km from the middle of the area, began a volume at 18:41 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, 6.7 hours before the alert went out and 319 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 1994-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1585 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 1994-06-12The 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
1585 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 121842
SVRSTL
MOC205-121930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
142 PM CDT SUN JUN 12 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...SHELBY COUNTY
 
AT 140 PM...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM NEAR
SHELBYVILLE. THIS STORM WAS MOVING EAST AT 25 TO 30 MPH.
 
THE CITIES OF SHELBYVILLE...BETHEL...AND BURKSVILLE ARE IN THE PATH OF
THIS STORM. IF IT MOVES INTO YOUR AREA...MOVE TO SHELTER.
 
 
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.
 
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, Jun 12, 11:41 AM CDT, 2 hours 1 minute before
MOZ008>010-017>019-025>027-033>036-041-042-048>052-059>065-ILZ098>102-
121745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1141 AM CDT SUN JUN 12 1994

...SHOWERS AND THUNDERSTORMS MOVING INTO NORTHEAST MISSOURI...

AT 1140 AM...NATIONAL WEATHER SERVICE RADARS INDICATED SHOWERS AND
THUNDERSTORMS PUSHING INTO NORTHEAST MISSOURI.  THE LEADING EDGE OF
THESE STORMS EXTENDED FROM THE MISSOURI-IOWA BORDER...ABOUT 20
MILES NORTH OF KIRKSVILLE...TO ABOUT 25 MILES WEST OF
KIRKSVILLE.

THESE STORMS CONTINUED TO PUSH SOUTHEAST AT 25 TO 30 MILES AN
HOUR...AND SHOULD BE ARRIVING IN THE KIRKSVILLE AREA BETWEEN NOON AND 1
PM.  GUSTY WINDS OF 20 TO 30 MILES AN HOUR...SOME SMALL HAIL...AND
BRIEF HEAVY RAINS CAN BE EXPECTED WITH THE STORMS PASSAGE.

HOWEVER...CONDITIONS ARE FAVORABLE FOR THE THUNDERSTORMS OVER
NORTHEAST MISSOURI TO INTENSIFY DURING THE AFTERNOON.  PEOPLE
THROUGHOUT NORTHEAST MISSOURI...AND ADJACENT SECTIONS OF WEST CENTRAL
ILLINOIS...ARE URGED TO KEEP AN EYE ON THE SKY...AND LISTEN TO LOCAL
RADIO AND TV STATIONS FOR ADDITIONAL WEATHER DEVELOPMENTS.

TRUETT
Special weather statement, Jun 12, 11:41 AM CDT, 2 hours 1 minute before
MOZ008>010-017>019-025>027-033>036-041-042-048>052-059>065-ILZ098>102-
121745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1141 AM CDT SUN JUN 12 1994

...SHOWERS AND THUNDERSTORMS MOVING INTO NORTHEAST MISSOURI...

AT 1140 AM...NATIONAL WEATHER SERVICE RADARS INDICATED SHOWERS AND
THUNDERSTORMS PUSHING INTO NORTHEAST MISSOURI.  THE LEADING EDGE OF
THESE STORMS EXTENDED FROM THE MISSOURI-IOWA BORDER...ABOUT 20
MILES NORTH OF KIRKSVILLE...TO ABOUT 25 MILES WEST OF
KIRKSVILLE.

THESE STORMS CONTINUED TO PUSH SOUTHEAST AT 25 TO 30 MILES AN
HOUR...AND SHOULD BE ARRIVING IN THE KIRKSVILLE AREA BETWEEN NOON AND 1
PM.  GUSTY WINDS OF 20 TO 30 MILES AN HOUR...SOME SMALL HAIL...AND
BRIEF HEAVY RAINS CAN BE EXPECTED WITH THE STORMS PASSAGE.

HOWEVER...CONDITIONS ARE FAVORABLE FOR THE THUNDERSTORMS OVER
NORTHEAST MISSOURI TO INTENSIFY DURING THE AFTERNOON.  PEOPLE
THROUGHOUT NORTHEAST MISSOURI...AND ADJACENT SECTIONS OF WEST CENTRAL
ILLINOIS...ARE URGED TO KEEP AN EYE ON THE SKY...AND LISTEN TO LOCAL
RADIO AND TV STATIONS FOR ADDITIONAL WEATHER DEVELOPMENTS.

TRUETT
Special weather statement, Jun 12, 12:26 PM CDT, 1 hour 16 minutes before
MOZ008>010-017>019-025>027-033>036-041-042-048>052-059>065-ILZ098>102-
121930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1226 PM CDT SUN JUN 12 1994

...SEVERE THUNDERSTORM WATCH FOR NORTHEAST AND EAST CENTRAL
MISSOURI UNTIL 7 PM THIS EVENING...

AT 1225 PM...NATIONAL WEATHER SERVICE RADARS CONTINUED TO
INDICATE A LINE OF THUNDERSTORMS OVER NORTHEAST MISSOURI...FROM NEAR
KIRKSVILLE TO ABOUT 45 MILES SOUTHWEST OF KIRKSVILLE.

THE LATEST WEATHER DATA SUGGESTS THAT THIS LINE OF THUNDERSTORMS WILL
INTENSIFY OVER THE NEXT FEW HOURS...AND THEY MOVE ACROSS NORTHEAST
AND EAST CENTRAL MISSOURI...AND ADJACENT SECTIONS OF WESTERN ILLINOIS.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.

TRUETT
Special weather statement, Jun 12, 12:26 PM CDT, 1 hour 16 minutes before
MOZ008>010-017>019-025>027-033>036-041-042-048>052-059>065-ILZ098>102-
121930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1226 PM CDT SUN JUN 12 1994

...SEVERE THUNDERSTORM WATCH FOR NORTHEAST AND EAST CENTRAL
MISSOURI UNTIL 7 PM THIS EVENING...

AT 1225 PM...NATIONAL WEATHER SERVICE RADARS CONTINUED TO
INDICATE A LINE OF THUNDERSTORMS OVER NORTHEAST MISSOURI...FROM NEAR
KIRKSVILLE TO ABOUT 45 MILES SOUTHWEST OF KIRKSVILLE.

THE LATEST WEATHER DATA SUGGESTS THAT THIS LINE OF THUNDERSTORMS WILL
INTENSIFY OVER THE NEXT FEW HOURS...AND THEY MOVE ACROSS NORTHEAST
AND EAST CENTRAL MISSOURI...AND ADJACENT SECTIONS OF WESTERN ILLINOIS.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.

TRUETT
Special weather statement, Jun 12, 12:33 PM CDT, 1 hour 9 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-121835-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MISSOURI
1233 PM CDT SUN JUN 12 1994

...SEVERE THUNDERSTORM WATCH FOR EAST SECTIONS OF CENTRAL MISSOURI
UNTIL 700 PM...

AT 1230 STRONG THUNDERSTORMS EXTENDED ACROSS NORTH SECTIONS OF CENTRAL
MISSOURI FROM NEAR KIRKSVILLE TO 30 MILES NORTH OF MARSHALL AROUND
SUMNER. THE THUNDERSTORMS WERE MOVING TO THE EAST SOUTH-EAST AT 25 TO
30 MILES AN HOUR AND WILL PRODUCE GUSTY WINDS TO 45 MILES AN
HOUR...ALONG WITH HEAVY RAIN...DEADLY LIGHTNING...AND SMALL HAIL.
A FEW COMMUNITIES IN THE PATH OF THESE STORMS BETWEEN 1230 PM AND 130
PM THIS AFTERNOON INCLUDE BYNUMVILLE...MARCELINE...MACON AND LAPLATA.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
LA GREE
Special weather statement, Jun 12, 12:36 PM CDT, 1 hour 6 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-121835-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MISSOURI
1233 PM CDT SUN JUN 12 1994

...SEVERE THUNDERSTORM WATCH FOR EAST SECTIONS OF CENTRAL MISSOURI
UNTIL 700 PM...

AT 1230 STRONG THUNDERSTORMS EXTENDED ACROSS NORTH SECTIONS OF CENTRAL
MISSOURI FROM NEAR KIRKSVILLE TO 30 MILES NORTH OF MARSHALL AROUND
SUMNER. THE THUNDERSTORMS WERE MOVING TO THE EAST SOUTH-EAST AT 25 TO
30 MILES AN HOUR AND WILL PRODUCE GUSTY WINDS TO 45 MILES AN
HOUR...ALONG WITH HEAVY RAIN...DEADLY LIGHTNING...AND SMALL HAIL.
A FEW COMMUNITIES IN THE PATH OF THESE STORMS BETWEEN 1230 PM AND 130
PM THIS AFTERNOON INCLUDE BYNUMVILLE...MARCELINE...MACON AND LAPLATA.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DR4IVE INTO LOW WATER CROSSINGS.
LA GREE

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; radar from the NEXRAD Level II archive.