Alert archive / Missouri / Tornado Warnings in 1993

Tornado Warning 14, NWS Kansas City, MO

July 13, 1993Boone County, Missouri

NWS Kansas City, MO issued this tornado warning at Jul 13, 1993, 2:57 PM CDT for Boone County, Missouri. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1993, 2:57 PM CDT (19:57 UTC)
Expired
Jul 13, 1993, 3:30 PM CDT
In force
33 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Boone County, MO

The radar

The St Louis radar (KLSX), 145 km from the middle of the area, began a volume at 19:59 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 12:00Z, 8.0 hours before the alert went out and 267 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 12:00Z on 1993-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 854 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 12:00Z on 1993-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 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
854 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 132003
TORCOU
MOC019-132030-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
257 PM CDT TUE JUL 13 1993
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  330 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MISSOURI
 
   ...CENTRAL BOONE COUNTY
 
AT 255PM CDT...RADAR INDICATED A POSSIBLE TORNADO ON THE NORTHWEST EDGE
OF COLUMBIA AND MOVING SOUTHEAST AT 25 MPH. PEOPLE IN COLUMBIA SHOULD
TAKE SHELTER IN A BASEMENT OR INTERIOR HALLWAY OF A BUILDING.
 
 
IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER BELOW GROUND
IF YOU CAN. IF YOU CANNOT GET BELOW GROUND...GO TO A SMALL INSIDE
ROOM ON THE LOWEST FLOOR OF dA STRONG BUILDING. DO NOT STAY IN MOBILE
HOMES OR CARS...LYING DOWN OUTSIDE IN A DITCH OR LOW SPOT IS SAFER.
 
LAGREE/LARM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 8:23 AM CDTFlash Flood WarningEAXAtchison, Holt, Nodaway5 hr
Jul 13, 9:26 AM CDTFlash Flood WarningEAXGentry5 hr
Jul 13, 11:32 AM CDTFlash Flood WarningEAXBuchanan, Clinton3 hr
Jul 13, 1:27 PM CDTFlash Flood WarningEAXChariton, Macon3 hr
Jul 13, 1:35 PM CDTFlash Flood WarningEAXHolt2 hr
Jul 13, 2:45 PM CDTSevere Thunderstorm WarningEAXBoone45 min
Jul 13, 4:16 PM CDTFlash Flood WarningEAXBoone, Callaway, Cole2 hr
Jul 13, 4:16 PM CDTFlash Flood WarningEAXMoniteau2 hr

Nearby

Tornado Warnings in Missouri, 1993Every tornado warning in 1993Tornadoes 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.