Alert archive / Missouri / Tornado Warnings in 1990

Tornado Warning 4, NWS St. Louis, MO

June 7, 1990Crawford County, Franklin County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 7, 1990, 3:31 PM CDT for Crawford County, Franklin County, Missouri. It was in force for 44 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 7, 1990, 3:31 PM CDT (20:31 UTC)
Expired
Jun 7, 1990, 4:15 PM CDT
In force
44 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Crawford County, MO, Franklin County, MO

The radar

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

What was reported inside it

TimeReportWhereRemark
Jun 7, 3:49 PM CDTTornado F1Crawford, MO
Jun 7, 4:00 PM CDTThunderstorm Wind 61Franklin, MO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.5 hours before the alert went out and 252 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, Paducah/Barkley, KY at 12:00Z on 1990-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 12:00Z on 1990-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 072034
TORSTL
MOC055-071-072130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
331 PM CDT THU JUN 7 1990
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL MISSOURI
          ...NORTHERN CRAWFORD...SOUTHERN FRANKLIN
 
A TORNADO WAS REPORTED NEAR JAKE PRAIRIE IN EXTREME NORTHWEST CRAWFORD
COUNTY...MOVING TO THE EAST OR NORTHEAST. PERSONS IN SULLIVAN SHOULD
PREPARE TO SEEK SHELTER IF SEVERE WEATHER APPROACHES.
 
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 1:41 AM CDTFlash Flood WarningLSXLincoln5 hr
Jun 7, 3:21 AM CDTFlash Flood WarningLSXSaint Charles, Warren5 hr
Jun 7, 3:21 AM CDTFlash Flood WarningLSXSaint Louis, City of Saint Louis5 hr
Jun 7, 8:40 AM CDTFlash Flood WarningLSXFranklin, Lincoln, Saint Charles, Warren9 hr
Jun 7, 8:40 AM CDTFlash Flood WarningLSXJefferson, Saint Louis9 hr
Jun 7, 8:40 AM CDTFlash Flood WarningLSXCity of Saint Louis9 hr
Jun 7, 2:19 PM CDTSevere Thunderstorm WarningLSXAdair, Knox, Schuyler, Scotland41 min
Jun 7, 2:54 PM CDTSevere Thunderstorm WarningLSXCrawford, Phelps66 min
Jun 7, 3:16 PM CDTSevere Thunderstorm WarningLSXFranklin, Warren59 min
Jun 7, 3:40 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Charles, Saint Louis, City of Saint Louis65 min
Jun 7, 3:40 PM CDTSevere Thunderstorm WarningLSXLincoln65 min
Jun 7, 3:40 PM CDTSevere Thunderstorm WarningLSXWashington65 min
Jun 7, 4:11 PM CDTTornado WarningLSXSaint Louis, City of Saint Louis49 min

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.