Alert archive / Missouri / Tornado Warnings in 1993

Tornado Warning 5, NWS St. Louis, MO

June 30, 1993Adair County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 30, 1993, 8:17 PM CDT for Adair County, Missouri. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1993, 8:17 PM CDT (01:17 UTC)
Expired
Jun 30, 1993, 9:15 PM CDT
In force
58 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Adair County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.3 hours before the alert went out and 292 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 00:00Z on 1993-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3169 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 00:00Z on 1993-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
3169 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 010121
TORSTL
MOC001-010215-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
817 PM CDT WED JUN 30 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...ADAIR COUNTY
 
AT 815 PM...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM POSSIBLY
PRODUCING A TORNADO AROUND 15 MILES WEST OF KIRKSVILLE. A TORNADO WAS
REPORTED WITH THIS STORM SOUTH OF GREEN CITY IN SULLIVAN COUNTY. THIS
STORM WAS MOVING TO THE SOUTHEAST AT 2O MPH.
 
PEOPLE IN THE TOWNS OF PURE AIR...NOVINGER...TIPPERARY...AND
YOUNGSTOWN SHOULD SEEK SHELTER IMMEDIATELY!
 
THIS WARNING REPLACES THE EARLIER SEVERE THUNDERSTORM WARNING FOR
SOUTHEASTERN ADAIR COUNTY.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 7:20 PM CDTSevere Thunderstorm WarningLSXSaint Charles34 min
Jun 30, 7:36 PM CDTSevere Thunderstorm WarningLSXLincoln35 min
Jun 30, 7:46 PM CDTSevere Thunderstorm WarningLSXAdair44 min
Jun 30, 8:27 PM CDTSevere Thunderstorm WarningLSXShelby63 min
Jun 30, 8:37 PM CDTSevere Thunderstorm WarningLSXKnox68 min
Jun 30, 9:07 PM CDTFlash Flood WarningLSXKnox3 hr
Jun 30, 9:18 PM CDTSevere Thunderstorm WarningLSXAdair57 min
Jun 30, 9:34 PM CDTFlash Flood WarningLSXShelby3 hr
Jun 30, 9:34 PM CDTSevere Thunderstorm WarningLSXShelby56 min
Jun 30, 10:00 PM CDTSevere Thunderstorm WarningLSXMarion60 min
Jun 30, 10:10 PM CDTTornado WarningLSXMarion, Ralls65 min
Jun 30, 10:39 PM CDTFlash Flood WarningLSXAdair3 hr
Jun 30, 11:15 PM CDTSevere Thunderstorm WarningLSXMarion32 min

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.