Alert archive / Missouri / Tornado Warnings in 1994

Tornado Warning 5, NWS Kansas City, MO

April 15, 1994Boone County, Cole County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 15, 1994, 3:29 AM CDT for Boone County, Cole County, Missouri. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 3:29 AM CDT (08:29 UTC)
Expired
Apr 15, 1994, 4:00 AM CDT
In force
31 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Boone County, MO, Cole County, MO

The radar

The St Louis radar (KLSX), 140 km from the middle of the area, began a volume at 08:31 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

Springfield, MO (KUMN), launched 00:00Z, 8.5 hours before the alert went out and 244 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, Springfield, MO at 00:00Z on 1994-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1188 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, Springfield, MO at 00:00Z on 1994-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 square meters per square second.19395878Sfc1 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
1188 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1725 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 150830
TORCOU
MOC019-051-150900-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
329 AM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  400 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSOURI
 
   ...SOUTHERN BOONE COUNTY...NORTHERN COLE COUNTY
 
AT 330 AM RADAR INDICATED A POSSIBLE TORNADO ABOUT 5 MILES NORTHWEST OF
JEFFERSON CITY MOVING TO THE EAST AT 30 MILES AN HOUR. PERSONS IN
JEFFERSON CITY AND HARTSBURG SHOULD TAKE COVER NOW.
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
LA GREE

What forecasters said that day

The local office's own words before this tornado 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, Apr 14, 9:31 PM CDT, 5 hours 58 minutes before
KSZ060-150335-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MO
931 PM CDT THU APR 14 1994

...THE THUNDERSTORM APPROACHING LINN COUNTY KANSAS IS WEAKENING...

AT 930 PM DOPPLER RADAR DETECTED A THUNDERSTORM APPROACHING SOUTHERN
LINN COUNTY KANSAS. THE STORM WAS MOVING NORTHEAST AT 35 MPH AND HAS
WEAKENED CONSIDERABLY SINCE 9 PM.

BRIEF HEAVY RAIN WILL ACCOMPANY THIS STORM. SMALL HAIL IS ALSO
POSSIBLE. THE STORM WILL MOVE THROUGH MANTEY AND TO NEAR MOUND CITY BY
10 PM.

A TORNADO WATCH REMAINS IN EFFECT FOR WEST-CENTRAL MISSOURI AND EXTREME
EAST-CENTRAL AND NORTHEAST KANSAS UNTIL 1 AM ND FOR PORTIONS OF
NORTHWEST MISSOURI UNTIL 3 AM CDT.

BB
Special weather statement, Apr 14, 10:29 PM CDT, 5 hours before
MOZ020-028-KSZ102-150430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MO
1030 PM CDT THU APR 14 1994

...INTENSIFYING THUNDERSTORMS APPROACHING DONIPHAN COUNTY KANSAS AND
EXTREME NORTHWEST MISSOURI...

AT 1028 PM DOPPLER RADAR DETECTED A LINE OF STRONG THUNDERSTORMS
EXTENDING FROM 10 MILES WEST OF TROY KANSAS TO 50 MILES SOUTHWEST OF
TROY. THE STORMS WERE MOVING NORTHEAST AT 40 MPH. THE THUNDERSTORMS
WILL MOVE INTO DONIPHAN COUNTY KANSAS AND ADJACENT SECTIONS OF
NORTHWEST MISSOURI BETWEEN 11 PM AND MIDNIGHT.

THESE STORMS WILL LIKELY PRODUCE HAIL AND STRONG WINDS. THE POTENTIAL
EXISTS FOR THE STORMS TO BECOME SEVERE.

BB
Special weather statement, Apr 14, 10:57 PM CDT, 4 hours 32 minutes before
MOZ004>006-011>013-020-021-028-029-150500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MO
1057 PM CDT THU APR 14 1994

...STRONG THUNDERSTORMS MOVING RAPIDLY NORTHEAST ACROSS NORTHWEST
MISSOURI AND EXTREME EASTERN KANSAS...

AT 1055 PM DOPPLER RADAR DETECTED A LINE OF STRONG THUNDERSTORMS FROM
15 MILES NORTHEAST OF ST JOSEPH TO 20 MILES WEST OF LEAVENWORTH KANSAS.
THE STORMS WERE MOVING NORTHEAST AT 50 MPH AND HAVE THE POTENTIAL TO
PRODUCE STRONG WINDS OF 50 MPH ACROSS NORTHWEST MISSOURI AND EXTREME
NORTHEAST KANSAS THROUGH 1 AM INCLUDING THE COUNTIES OF
LEAVENWORTH...BUCHANAN...DEKALB...CLINTON...PLATTE AND CLAY. IN
ADDITION TO STRONG WINDS...BRIEF HEAVY RAINFALL AND SMA@LL HAIL CAN ALSO
BE EXPECTED.

BB
Special weather statement, Apr 15, 2:35 AM CDT, 54 minutes before
MOZ054-067-150830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MO
234 AM CDT FRI APR 15 1994

...THE SEVERE THUNDERSTORM WARNING IS NO LONGER IN EFFECT FOR HENRY AND
ST. CLAIR COUNTIES IN MISSOURI...
...THE TORNADO WARNING IS NO LONGER IN EFFECT FOR SOUTHERN HENRY COUNTY
OF MISSOURI...

AS OF 230 AM...RADAR SHOWED THE SEVERE THUNDERSTORM THAT HAD BEEN
IN HENRY AND ST. CLAIR COUNTIES OF MISSOURI HAD MOVED EAST INTO BENTON
COUNTY OF MISSOURI.

COOPER

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 11:36 PM CDTSevere Thunderstorm WarningEAXPlatte24 min
Apr 14, 11:45 PM CDTSevere Thunderstorm WarningEAXClay45 min
Apr 14, 11:45 PM CDTSevere Thunderstorm WarningEAXClinton22 min
Apr 14, 11:54 PM CDTSevere Thunderstorm WarningEAXMercer51 min
Apr 15, 12:13 AM CDTSevere Thunderstorm WarningEAXRay62 min
Apr 15, 12:20 AM CDTSevere Thunderstorm WarningEAXJackson40 min
Apr 15, 12:56 AM CDTSevere Thunderstorm WarningEAXChariton49 min
Apr 15, 1:18 AM CDTSevere Thunderstorm WarningEAXBates42 min
Apr 15, 1:26 AM CDTSevere Thunderstorm WarningEAXMacon, Randolph49 min
Apr 15, 1:50 AM CDTSevere Thunderstorm WarningEAXHenry, St. Clair40 min
Apr 15, 2:01 AM CDTTornado WarningEAXHenry29 min
Apr 15, 2:19 AM CDTSevere Thunderstorm WarningEAXAudrain41 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXBenton, Morgan58 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXHoward, Randolph58 min
Apr 15, 2:32 AM CDTSevere Thunderstorm WarningEAXCooper58 min
Apr 15, 2:34 AM CDTTornado WarningEAXBenton26 min
Apr 15, 2:45 AM CDTTornado WarningEAXMorgan30 min
Apr 15, 2:54 AM CDTTornado WarningEAXMoniteau36 min
Apr 15, 2:59 AM CDTSevere Thunderstorm WarningEAXAudrain, Boone61 min
Apr 15, 3:23 AM CDTSevere Thunderstorm WarningEAXCallaway, Cole67 min
Apr 15, 3:46 AM CDTTornado WarningEAXCallaway29 min
Apr 15, 3:49 AM CDTSevere Thunderstorm WarningEAXMaries, Pulaski41 min
Apr 15, 4:00 AM CDTTornado WarningEAXOsage30 min
Apr 15, 4:08 AM CDTTornado WarningEAXGasconade37 min
Apr 15, 4:14 AM CDTSevere Thunderstorm WarningEAXMontgomery61 min

Nearby

Tornado Warnings in Missouri, 1994Every tornado warning in 1994Tornadoes 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.