Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 69, NWS St. Louis, MO

June 7, 1990Washington County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 7, 1990, 3:40 PM CDT for Washington County, Missouri. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1990, 3:40 PM CDT (20:40 UTC)
Expired
Jun 7, 1990, 4:45 PM CDT
In force
65 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Washington 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

Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.7 hours before the alert went out and 216 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 072044
SVRSTL
ILC013-MOC099-113-183-189-510-221-072145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
340 PM CDT THU JUN 7 1990
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHWEST ILLINOIS
          ...SOUTHERN CALHOUN
IN EAST CENTRAL MISSOURI
          ...NORTHERN JEFFERSON...LINCOLN...ST CHARLES...ST LOUIS
          ...ST LOUIS CITY...
 
A SEVERE THUNDERSTORM WITH DAMAGING WIND WAS 40 MILES WEST OF ST LOUIS
NEAR WARRENTON MISSOURI AND IS MOVING EAST NORTHEAST AT 45 MPH.
 
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.
 
EISE

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 7, 9:51 AM CDT, 5 hours 49 minutes before
MOZ010-011-012-ILZ011-012-071530-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
940 AM CDT THU JUN 7 1990

...A FLASH FLOOD WARNING IS IN EFFECT UNTIL 600 PM CDT THIS EVENING FOR
THE SOUTHWEST ILLINOIS COUNTIES OF MONROE AND ST CLAIR...AND THE EAST
CENTRAL MISSOURI COUNTIES OF FRANKLIN...JEFFERSON...LINCOLN...ST CHARLES
...ST LOUIS...ST LOUIS CITY...AND WARREN...

...A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 600 PM THIS EVENING
ACROSS EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS...

AT 933 AM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN...STRONG GUSTY
WINDS...FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING AND POSSIBLE HAIL
...WERE IN A NARROW AREA FROM KIRKSVILLE TO WASHINGTON MISSOURI...30
MILES WEST OF ST LOUIS.  OTHER SHOWERS STRETCHED FROM NORTHEAST MISSOURI
INTO SOUTH CENTRAL ILLINOIS.  THE STORMS WERE MOVING TO THE EAST AT 45
MPH.

FLASH FLOODING WILL CONTINUE ACROSS PORTIONS OF EST CENTRAL MISSOURI
AND SOUTHWEST ILLINOIS TODAY AS HEAVY RAIN COMBINED WITH THREE TO SIX
INCHES OF RAIN OVERNIGHT KEEP ROADS FLOODED AND PUSH STREAMS OVER THEIR
BANKS.

MOST FLASH FLOODING DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.  NEVER
TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.  TO ESCAPE
RISING WATER MOVE TO HIGHER GROUND.

DYER
Special weather statement, Jun 7, 11:30 AM CDT, 4 hours 10 minutes before
MOZALL-071740-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
1130 AM CDT THU JUN 7 1990

...A FLASH FLOOD WARNING IS IN EFFECT UNTIL 600 PM CDT THIS EVENING FOR
THE SOUTHWEST ILLINOIS COUNTIES OF MONROE AND ST CLAIR...AND THE EAST
CENTRAL MISSOURI COUNTIES OF FRANKLIN...JEFFERSON...LINCOLN...ST CHARLES
...ST LOUIS...ST LOUIS CITY...AND WARREN...

...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 6 PM THIS EVENING ACROSS
EAST CENTRAL AND NORTHEAST MISSOURI AND SOUTHWEST AND PORTIONS OF WEST
CENTRAL ILLINOIS...

THE NATIONAL WEATHER SERVICE RADAR AT 1125 AM CDT INDICATED STRONG
THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED NEAR CLAYTON ILLINOIS...
JUST EAST OF QUINCY IN EAST CENTRAL ADAMS COUNTY.  ALSO...HEAVY RAIN WAS
JUST SOUTHWEST OF HANNIBAL MISSOURI IN RALLS COUNTY.

WATER WAS REPORTED OVER THE ROAD ON ILLINOIS HIGHWAY 24 IN ADAMS COUNTY.

THESE STORMS WERE MOVING TO THE EAST AT 45 MPH AND WERE PART OF A
LARGER AREA OF SHOWERS AND THUNDERSTORMS THAT COVERED NORTHEAST
MISSOURI AND SOUTHWEST ILLINOIS.

FLASH FLOODING WILL CONTINUE TODAY AS HEAVY RAIN COMBINED WITH
SATURATED GROUND CONDITIONS WILL FLOOD ROADS AND PUSH STREAMS OVER
THEIR BANKS.

NEVER CROSS WATER COVERED ROADS.

MOST OF THE DEATHS DURING THE FLOODING IN MAY WERE DUE TO PERSONS
ATTEMPTING TO CROSS WATER COVERED ROADWAYS.  IT ONLY TAKES TWO FEET OF
WATER TO SWEEP A CAR OFF THE ROAD.

PLEASE STAY ALERT FOR LATER STATEME+NTS AND WARNINGS FROM THE NATIONAL
WEATHER SERVICE.

DYER
Special weather statement, Jun 7, 11:43 AM CDT, 3 hours 57 minutes before
MOZ006-009-010-013-071730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
1140 AM CDT THU JUN 7 1990

...STRONG THUNDERSTORMS DEVELOPING OVER WEST CENTRAL MISSOURI...

AT 1130 AM A CLUSTER OF INTENSE THUNDERSTORMS WAS DEVELOPING FROM
5 MILES NORTH OF SEDALIA TO ABOUT 10 MILES WEST OF WARRENSBURG
TO CLINTON. THE STRONGEST THUNDERSTORM WAS JUST WEST OF WHITEMAN
AIR FORCE BASE. THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES
AN HOUR...AND WILL PRODUCE VERY HEAVY RAIN...BRIEF GUSTY WIND
AND FREQUENT DANGEROUS LIGHTNING...ALONG WITH THE POSSIBILITY OF
HAIL.

PERSONS IN PETTIS AND SALINE COUNTIES SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND LISTEN FOR LATER STATMENTS OR PDOSSIBLE
WARNINGS.
LA GREE
Special weather statement, Jun 7, 12:45 PM CDT, 2 hours 55 minutes before
MOZ006-009-010-013-071845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
1240 PM CDT THU JUN 7 1990

...FLASH FLOOD WARNING FOR MONTGOMERY COUNTY EXPIRED AT NOON...
...INTENSE THUNDERSTORMS MOVING ACROSS WEST CENTRAL MISSOURI...

AT 1235 PM A LINE OF INTENSE THUNDERSTORMS 10 MILES WIDE EXTENDED
FROM 35 MILES NORTHWEST OF COLUMBIA NEAR GLASGOW TO 5 MILES EAST
OF SEDALIA THEN CONTINUED INTO SOUTHWEST MISSOURI. THE THUNDERSTORMS
WERE MOVING EAST AT 40 MILES AN HOUR...AND WILL PRODUCE HEAVY RAIN
GUSTY WINDS...HAIL AND FREQUENT CLOUD TO GROUND LIGHTNING STRIKES.
BY 1245 PM THE LINE OF THUNDERSTORMS WILL STRETCH FROM MOBERLY IN
NORTH CENTRAL MISSOURI TO BAGNELL DAM AND THE LAKE OF THE OZARKS.

NO PRECIPITATION HAS FALLEN IN MONTGOMERY COUNTY SINCE ABOUT 1000 AM
SO THE FLASH FLOOD WARNING FOR MONTGOMERY COUNTY HAS EXPIRED AND
WILL NOT BE REISSUED AT THIS TIME...HOWEVER FLASH FLOODING WILL
BE A THREAT OVER THE NORTHERN HALF OF CENTRAL MISSOURI UNTIL 600 PM.
LA GREE
Special weather statement, Jun 7, 12:47 PM CDT, 2 hours 53 minutes before
MOZ006-009-010-013-071845-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE COLUMBIA MO
1240 PM CDT THU JUN 7 1990

...FLASH FLOOD WARNING FOR MONTGOMERY COUNTY EXPIRED AT NOON...
...INTENSE THUNDERSTORMS MOVING ACROSS WEST CENTRAL MISSOURI...

AT 1235 PM A LINE OF INTENSE THUNDERSTORMS 10 MILES WIDE EXTENDED
FROM 35 MILES NORTHWEST OF COLUMBIA NEAR GLASGOW TO 5 MILES EAST
OF SEDALIA THEN CONTINUED INTO SOUTHWEST MISSOURI. THE THUNDERSTORMS
WERE MOVING EAST AT 40 MILES AN HOUR...AND WILL PRODUCE HEAVY RAIN
GUSTY WINDS...HAIL AND FREQUENT CLOUD TO GROUND LIGHTNING STRIKES.
BY 145 PM THE LINE OF THUNDERSTORMS WILL STRETCH FROM MOBERLY IN
NORTH CENTRAL MISSOURI TO BAGNELL DAM AND THE LAKE OF THE OZARKS.

NO PRECIPITATION HAS FALLEN IN MONTGOMERY COUNTY SINCE ABOUT 1000 AM
SO THE FLASH FLOOD WARNING FOR MONTGOMERY COUNTY HAS EXPIRED AND
WILL NOT BE REISSUED AT THIS TIME...HOWEVER FLASH FLOODING WILL
BE A THREAT OVER THE NORTHERN HALF OF CENTRAL MISSOURI UNTIL 600 PM.
LA GREE
Special weather statement, Jun 7, 1:52 PM CDT, 1 hour 48 minutes before
MOZALL-071940-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
152 PM CDT THU JUN 7 1990

...A TORNADO WATCH UNTIL 8 PM FOR MUCH OF CENTRAL AND PARTS OF EASTERN
MISSOURI AND MUCH OF THE SOUTHWEST THIRD OF ILLINOIS.

...A FLASH FLOOD WARNING UNTIL 6 PM CDT FOR MONROE AND ST CLAIR COUNTIES
IN ILLINOIS AND ST LOUIS CITY AND COUNTY AND ST CHARLES...LINCOLN...
WARREN...FRANKLIN AND JEFFERSON COUNTIES IN MISSOURI.

...A FLASH FLOOD WATCH UNTIL 6 PM FOR THE NORTHERN HALF OF MISSOURI AND
PORTIONS OF SOUTHWEST ILLINOIS...

THE NATIONAL WEATHER SERVICE RADAR AT 131 PM CDT INDICATED STRONG
THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS...AND POSSIBLE SMALL
HAIL NEAR TIPTON MISSOURI...30 MILES SOUTHWEST OF COLUMBIA.  WALNUT SIZE
HAIL WAS REPORTED JUST NORTH OF TIPTON.  OTHER HEAVY RAIN STRETCHED FROM
30 MILES NORTHEAST OF COLUMBIA TO THE LAKE OF THE OZARKS.  ALL THIS RAIN
WAS MOVING TO THE EAST NORTHEAST AT 45 MPH.

HEAVY RAIN WILL CONTINUE ACROSS CENTRAL MISSOURI THIS AFTERNOON.  THE
ST LOUIS METRO AREA WILL HAVE A BREAK IN THE RAINFALL UNTIL LATE
AFTERNOON...WITH HEAVY RAIN POSSIBLE BY RUSH HOUR.

REMEMBER...DO NOT DRIVE ACROSS FLOODED ROADS.

PL
EASE STAY ALERT FOR LATER STATEMENTS AND WARNINGS FROM THE NATIONAL
WEATHER SERVICE.

DYER

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, 3:31 PM CDTTornado WarningLSXCrawford, Franklin44 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, 4:11 PM CDTTornado WarningLSXSaint Louis, City of Saint Louis49 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.