Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS St. Louis, MO

May 16, 1990City of Saint Louis, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 16, 1990, 5:23 PM CDT for City of Saint Louis, Missouri. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
May 16, 1990, 5:23 PM CDT (22:23 UTC)
Expired
May 16, 1990, 6:15 PM CDT
In force
52 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County City of Saint Louis, 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

Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.4 hours before the alert went out and 217 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 1990-05-16Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 12:00Z on 1990-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 162228
SVRSTL
MOC071-099-189-510-162315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
523 PM CDT WED MAY 16 1990
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL MISSOURI
          ...CENTRAL AND EASTERN FRANKLIN...JEFFERSON
          ...SOUTHERN ST LOUIS...SOUTHERN ST LOUIS CITY
 
AT 515 PM GOLF BALL SIZED HAIL WAS REPORTED AT VILLA RIDGE...WHICH IS
35 MILES SOUTHWEST OF ST. LOUIS ON INTERSTATE 44...AND AT
SULLIVAN...WHICH IS 45 MILES SOUTHWEST OF ST. LOUIS ON I-44. THE
THUNDERSTORM THAT IS GENERATING THE HAIL COVERED MUCH OF CENTRAL AND
EASTERN FRANKLIN COUNTY AND IS MOVING TO THE EAST AT 40 MPH.
 
THE THUNDERSTORMS WILL MOVE THROUGH FRANKLIN COUNTY BY 535 PM AND
THROUGH SOUTH ST. LOUIS CITY AND COUNTY BY 6OO PM.
 
PERONS IN PACIFIC...UNION...HIGH RIDGE...HOUSE SPRINGS AND CEDAR HILLS
PLUS THE PERSONS IN SOUTH ST. LOUIS CITY AND SOUTH ST. LOUIS COUNTY
SHOULD BE PREPARED FOR LARGE HAIL HIGH WINDS AND VERY HEAVY RAIN WITH
SOME ADDITIONAL FLOODING.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
SJM

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 11:05 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls25 min
May 15, 11:35 PM CDTSevere Thunderstorm WarningLSXPike40 min
May 15, 11:51 PM CDTSevere Thunderstorm WarningLSXLincoln54 min
May 16, 1:02 AM CDTSevere Thunderstorm WarningLSXLincoln, Warren43 min
May 16, 1:14 AM CDTSevere Thunderstorm WarningLSXSaint Charles46 min
May 16, 3:33 AM CDTSevere Thunderstorm WarningLSXJefferson27 min
May 16, 4:08 AM CDTSevere Thunderstorm WarningLSXLincoln37 min
May 16, 4:45 AM CDTFlash Flood WarningLSXLincoln, Saint Charles, Warren4 hr
May 16, 2:26 PM CDTSevere Thunderstorm WarningLSXFranklin, Warren43 min
May 16, 2:55 PM CDTSevere Thunderstorm WarningLSXSaint Charles14 min
May 16, 2:55 PM CDTSevere Thunderstorm WarningLSXSaint Louis50 min
May 16, 3:47 PM CDTFlash Flood WarningLSXSaint Charles7 hr
May 16, 3:47 PM CDTFlash Flood WarningLSXLincoln, Warren7 hr
May 16, 3:47 PM CDTFlash Flood WarningLSXFranklin, Saint Louis7 hr
May 16, 3:47 PM CDTFlash Flood WarningLSXCity of Saint Louis7 hr
May 16, 4:54 PM CDTSevere Thunderstorm WarningLSXCrawford, Phelps36 min
May 16, 4:56 PM CDTTornado WarningLSXSaint Louis22 min
May 16, 5:09 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis51 min
May 16, 5:23 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Louis52 min
May 16, 5:29 PM CDTSevere Thunderstorm WarningLSXCrawford, Washington61 min
May 16, 6:07 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois53 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1990Every severe thunderstorm warning 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.