Alert archive / Missouri / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 67, NWS St. Louis, MO

November 15, 1989Saint Louis County, City of Saint Louis, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Nov 15, 1989, 4:33 AM CST for Saint Louis County, City of Saint Louis, Missouri. It was in force for 42 min. 1 report 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
Nov 15, 1989, 4:33 AM CST (10:33 UTC)
Expired
Nov 15, 1989, 5:15 AM CST
In force
42 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties City of Saint Louis, MO, Saint Louis 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
Nov 15, 4:43 AM CSTThunderstorm Wind 52St. Louis, 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 00:00Z, 10.6 hours before the alert went out and 225 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 00:00Z on 1989-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 550 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1989-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 277 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
550 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
277 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.6
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 151034
SVRSTL
MOC189-510-151115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
433 AM CST WED NOV 15 1989
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...SOUTHEAST ST LOUIS COUNTY
 
  AND THE INDEPENDENT CITY OF
 
   ...SOUTHERN ST LOUIS CITY
 
AT 430 THIS MORNING..A SEVERE THUNDERSTORM WAS LOCATED IN WEST
ST. LOUIS COUNTY...ABOUT 15 MILES WEST AND SOUTHWEST OF DOWNTOWN.
AT 427AM...HAIL..SIZE UNKNOWN..WAS REPORTED IN CLARKSON VALLEY..
20 MILES WEST OF DOWNTOWN...AND POWER WAS REPORTED OUT.  HAIL..
SIZE UNKNOWN...WAS ALSO REPORTED IN ELLISVILLE.
 
THIS STORM WILL MOVE ACROSS SOUTH ST LOUIS COUNTY AND SOUTH ST LOUIS
CITY BETWEEN 430 AND 515 THIS MORNING PRODUCING LARGE HAIL AND
FREQUENT CLOUD TO GROUND LIGHTNING.
 
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 INOTO AREAS WHERE WATER COVERS THE ROAD.
 
FELDT

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, Nov 15, 2:13 AM CST, 2 hours 20 minutes before
MOZ013-014-150900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
210 AM CST WED NOV 15 1989

...VERY STRONG THUNDERSTORMS DEVELOPING OVER SOUTH CENTRAL SECTIONS
OF CENTRAL MISSOURI THIS MORNING...

AT 200 AM A VERY STRONG THUNDERSTORM WAS 45 MILES SOUTH OF SEDALIA
NEAR HERMITAGE...AND OTHER SCATTERED INTENSE THUNDERSTORMS WERE IN
A BAND 10 MILES WIDE AND EXTENDED FROM 25 MILES NORTHEAST OF SPRINGFIELD
TO ABOUT 10 MILES NORTH OF ROLLA. THESE THUNDERSTORMS WILL LIKELY
CONTAIN HAIL...BRIEF STRONG GUSTY WIND...ALONG WITH HEAVY RAIN AND
VERY DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING TO THE
NORTHEAST AT 35 MILES AN HOUR.
NO SEVERE WEATHER HAS BEEN REPORTED AROUND CENTRAL MISSOURI THIS
MORNING...HOWEVER THE POSSIBILITY EXISTS OVER SOUTH SECTIONS OF
CENTRAL MISSOURI FOR THE REMAINDER OF THE MORNING.
AL
Special weather statement, Nov 15, 3:02 AM CST, 1 hour 31 minutes before
MOZ017-018-151000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
300 AM CST WED NOV 15 1989

...STRONG THUNDERSTORMS DEVELOPING IN FRANKLIN COUNTY...

AT 3AM...AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED IN THE
SOUTHWEST CORNER OF FRANKLIN COUNTY WHILE ANOTHER STRONG STORM WAS
LOCATED NEAR ROLLA IN PHELPS COUNTY.  THIS WAS BETWEEN 50 AND 75 MILES
SOUTHWEST OF ST. LOUIS.

HAIL WAS REPORTED AT DIXON IN PULASKI COUNTY AS THESE STORMS MOVED
THROUGH.

BETWEEN 3 AND 4AM THIS MORNING..THESE VERY STRONG STORMS WILL MOVE
NORTHEAST ACROSS PORTIONS OF FRANKLIN...NORTHWEST CRAWFORD..AND
NORTHERN PHELPS COUNTIES.  HIGH WINDS...BRIEF HEAVY RAIN..DANGEROUS
LIGHTNING AND HAIL CAN BE EXPECTED WITH THE STORMS PASSAGE.
FELDT

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 3:41 AM CSTSevere Thunderstorm WarningLSXFranklin49 min
Nov 15, 4:00 AM CSTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis45 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1989Every severe thunderstorm warning in 1989

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.