Alert archive / Missouri / Tornado Warnings in 1994

Tornado Warning 7, NWS Kansas City, MO

April 15, 1994Osage County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 15, 1994, 4:00 AM CDT for Osage County, Missouri. It was in force for 30 min.

The area

The counties it named.

The facts

Issued: Apr 15, 1994, 4:00 AM CDT (09:00 UTC)
Expired: Apr 15, 1994, 4:30 AM CDT
In force: 30 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Osage County, MO

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 09:00 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, 9.0 hours before the alert went out and 243 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 150901
TORCOU
MOC151-150930-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
400 AM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  430 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MISSOURI
 
   ...NORTHERN OSAGE COUNTY
 
AT 350 AM A TORNADO WAS REPORTED AT TAOS 5 MILES EAST OF JEFFERSON CITY
WITH BUILDING DAMAGE. THE TORNADO HAD MOVED INTO NORTHERN OSAGE COUNTY
ABOUT 15 MILES EAST OF JEFFERSON CITY NEAR FRANKENSTEIN. IF YOU
LIVE IN NORTHERN OSAGE COUNTY TAKE COVER NOW.
 
 
IF YOU LIVE IN A HOME OR APARTMENT...SEEK SHELTER IN THE
INNERMOST PORTION OF THE BUILDING ON THE LOWEST FLOOBR.  GET TO
A BASEMENT IF ONE IS AVAILABLE.  AVOID WINDOWS AND PROTECT YOUR
BODY FROM FLYING DEBRIS WITH CUSHIONS...BLANKETS...OR PILLOWS.
 
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, 10:29 PM CDT, 5 hours 31 minutes 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, 5 hours 3 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, 1 hour 25 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

Local storm report, Apr 15, 3:41 AM CDT, 19 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY MO
340 AM CDT FRI APR 15 1994

 TIME       COUNTY/STATE          EVENT

1145 PM     PLATTE MO             1 INCH HAIL NEAR KANSAS CITY
                                  INTERNATIONAL AIRPORT REPORTED
                                  BY FIRE DEPARTMENT

1152 PM     PLATTE MO             DIME SIZE HAIL AT 152 HIGHWAY
                                  AND I-29 REPORTED BY NWS PERSONNEL

1159 PM     CLAY MO               ROOF BLOWN OFF OF HOUSE...ROOF BLOWN
                                  OFF OF SKATING RINK...POWER LINES
                                  DOWN...IN LIBERTY. REPORTED BY FIRE
                                  DEPARTMENT.  DAMAGE ESTIMATED AT
                                  1/2 MILLION DOLLARS

1210 AM     CLAY MO               1 1/2 INCH HAIL REPORTED BY
                                  EMERGENCY MANAGER AT PARADISE
                                  POINT..NEAR SMITHVILLE

1220 AM     JOHNSON KS            ROOF PARTIALLY BLOWN OFF OF SANTA
                                  FE ELEMENTARY SCHOOL AT 7100 LAMAAR
                                  IN OVERLAND PARK KS. REPORTED BY FIRE

1220 AM     JOHNSON KS            TREE DOWN BLOCKING TRAFFIC AT 75TH
                                  AND LAMAAR IN OVERLAND PARK REPORTED
                                  BY FIRE DEPARTMENT

APPROX      MIAMI KS              QUARTER SIZE HAIL AT 169 HIGHWAY AND
1245 AM                           327TH ST..REPORTED BY LAW ENFORCEMENT

105 AM      LINN KS               TREES DOWN 1 MILE NW OF MOUND CITY.
                                  REPORTED BY LAW ENFORCEMENT

205 -       HENRY MO              DAMAGE IN CITY OF MONTROSE..ALONG
225 AM                            Z HIGHWAY..AND IN DEEPWATER.  TREES
                                  DOWN ON TOP OF MOBILE HOME.  ONE
                                  MOBILE HOME BLOWN OVER (UNOCCUPIED).
                                  TREES AND POWER LINES DOWN NORTH OF
                                  APPLETON CITY.

APPROX      HENRY MO              DEPUTY REPORT OF HOUSE AND BARN
220 AM                            DESTROYED NEAR HIGHWAYS Z AND BB.
                                  APPARANT TORNADO.

WELVAERT

Local storm report, Apr 15, 3:45 AM CDT, 15 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY, MO
345 AM CDT FRI APR 15 1994

...ADDITIONAL REPORT...

  TIME       COUNTY                EVENT

1155 PM      PLATTE MO       DIME SIZE HAIL REPORTED BY OFF DUTY NWS
                             PERSONNEL AT BARRY ROAD AND I-29.

WELVAERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 11:36 PM CDT	Severe Thunderstorm Warning	EAX	Platte	24 min
Apr 14, 11:45 PM CDT	Severe Thunderstorm Warning	EAX	Clay	45 min
Apr 14, 11:45 PM CDT	Severe Thunderstorm Warning	EAX	Clinton	22 min
Apr 14, 11:54 PM CDT	Severe Thunderstorm Warning	EAX	Mercer	51 min
Apr 15, 12:13 AM CDT	Severe Thunderstorm Warning	EAX	Ray	62 min
Apr 15, 12:20 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	40 min
Apr 15, 12:56 AM CDT	Severe Thunderstorm Warning	EAX	Chariton	49 min
Apr 15, 1:18 AM CDT	Severe Thunderstorm Warning	EAX	Bates	42 min
Apr 15, 1:26 AM CDT	Severe Thunderstorm Warning	EAX	Macon, Randolph	49 min
Apr 15, 1:50 AM CDT	Severe Thunderstorm Warning	EAX	Henry, St. Clair	40 min
Apr 15, 2:01 AM CDT	Tornado Warning	EAX	Henry	29 min
Apr 15, 2:19 AM CDT	Severe Thunderstorm Warning	EAX	Audrain	41 min
Apr 15, 2:32 AM CDT	Severe Thunderstorm Warning	EAX	Benton, Morgan	58 min
Apr 15, 2:32 AM CDT	Severe Thunderstorm Warning	EAX	Howard, Randolph	58 min
Apr 15, 2:32 AM CDT	Severe Thunderstorm Warning	EAX	Cooper	58 min
Apr 15, 2:34 AM CDT	Tornado Warning	EAX	Benton	26 min
Apr 15, 2:45 AM CDT	Tornado Warning	EAX	Morgan	30 min
Apr 15, 2:54 AM CDT	Tornado Warning	EAX	Moniteau	36 min
Apr 15, 2:59 AM CDT	Severe Thunderstorm Warning	EAX	Audrain, Boone	61 min
Apr 15, 3:23 AM CDT	Severe Thunderstorm Warning	EAX	Callaway, Cole	67 min
Apr 15, 3:29 AM CDT	Tornado Warning	EAX	Boone, Cole	31 min
Apr 15, 3:46 AM CDT	Tornado Warning	EAX	Callaway	29 min
Apr 15, 3:49 AM CDT	Severe Thunderstorm Warning	EAX	Maries, Pulaski	41 min
Apr 15, 4:08 AM CDT	Tornado Warning	EAX	Gasconade	37 min
Apr 15, 4:14 AM CDT	Severe Thunderstorm Warning	EAX	Montgomery	61 min

Nearby

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