Alert archive / Missouri / Tornado Warnings in 1990

Tornado Warning 8, NWS Kansas City, MO

May 15, 1990Callaway County, Montgomery County, Missouri

NWS Kansas City, MO issued this tornado warning at May 15, 1990, 11:44 PM CDT for Callaway County, Montgomery County, Missouri. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
May 15, 1990, 11:44 PM CDT (04:44 UTC)
Expired
May 16, 1990, 12:15 AM CDT
In force
31 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Callaway County, MO, Montgomery County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 4.7 hours before the alert went out and 288 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 1990-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1222 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 1990-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 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
1222 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1221 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
495 m²/s²
Significant tornado parameter
2.0
Supercell composite
19.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 160444
TORCOU
MOC139-027-160515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE COLUMBIA MO
1144 PM CDT TUE MAY 15 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 1215 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE EAST CENTRAL PART OF MISSOURI
      MONTGOMERY...

   IN THE CENTRAL PART OF MISSOURI
      NORTHERN CALLAWAY...

AT 1140 PM A TORNADO WAS REPORTED ON THE GROUND IN
AUXVASSE 30 MILES NORTHEAST OF COLUMBIA MOVING EAST
AT 40 MILES AN HOUR.

TAKE SHELTER IN A BASEMENT OR INTERIOR ROOM OR CLOSET ON THE LOWEST
FLOOR AND AWAY FROM WINDOWS.  COVER YOUR HEAD.

 LA GREE

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:28 PM CDTFlash Flood WarningEAXClay, Jackson, Platte3 hr
May 15, 8:18 PM CDTSevere Thunderstorm WarningEAXClay, Jackson27 min
May 15, 11:01 PM CDTTornado WarningEAXBoone29 min
May 16, 10:09 AM CDTSevere Thunderstorm WarningEAXBenton, Pettis36 min
May 16, 2:40 PM CDTFlash Flood WarningEAXBenton, Cooper, Morgan, Pettis3 hr
May 16, 2:40 PM CDTFlash Flood WarningEAXSaline3 hr
May 16, 4:00 PM CDTFlash Flood WarningEAXBoone, Callaway, Cole, Moniteau3 hr
May 16, 4:00 PM CDTFlash Flood WarningEAXMiller3 hr
May 16, 4:54 PM CDTFlash Flood WarningEAXGasconade, Maries, Montgomery, Osage3 hr
May 16, 4:54 PM CDTFlash Flood WarningEAXPulaski3 hr

Nearby

Tornado Warnings in Missouri, 1990Every tornado warning in 1990Tornadoes in 1990

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.