Alert archive / Missouri / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 2, NWS St. Louis, MO

March 17, 1989Franklin County, Saint Charles County, Warren County, Missouri; Calhoun County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 17, 1989, 4:28 PM CST for Franklin County, Saint Charles County, Warren County, Missouri; Calhoun County, Illinois. It was in force for 47 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
Mar 17, 1989, 4:28 PM CST (22:28 UTC)
Expired
Mar 17, 1989, 5:15 PM CST
In force
47 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Calhoun County, IL, Franklin County, MO, Saint Charles County, MO, Warren 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
Mar 17, 5:05 PM CSTHail 0.75St. Charles, 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

Peoria Regional, IL (KPIA), launched 12:00Z, 10.5 hours before the alert went out and 237 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, Peoria Regional, IL at 12:00Z on 1989-03-17Temperature 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, Peoria Regional, IL at 12:00Z on 1989-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.1939587897Sfc1 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
1272 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
319 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 172231
SVRSTL
MOC071-219-183-ILC013-172315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
428 PM CST FRI MAR 17 1989

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE
THUNDERSTORM WARNING UNTIL 515 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTIES...

IN EAST CENTRAL MISSOURI
        EASTERN WARREN...NORTHERN FRANKLIN...WESTERN ST CHARLES
IN SOUTHWEST ILLINOIS
        SOUTHERN CALHOUN

AT 425 PM CST A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM JUST SOUTH
OF ELSBERRY MISSOURI...40 MILES NORTHWEST OF ST LOUIS TO NEW HAVEN
MISSOURI...50 MILES WEST OF ST LOUIS.  THE STORMS WERE MOVING TO THE
NORTHEAST AT 50 MPH.  PERSONS FROM NEAR WASHINGTON MISSOURI THROUGH
WENTZVILLE AND INTO SOUTHERN CALHOUN COUNTY ILLINOIS SHOULD BE ALERT
FOR THESE STORMS.

PROTECT YOURSELF FROM DAMAGING WINDS...LARGE HAIL AND DEADLY
LIGHTNING BY STAYING INDOORS...AWAY FROM WINDOWS.  A TORNADO WATCH
IS ALSO IN EFFECT FOR THE WARNED COUNTIES.  SEVERE THUNDERSTORMS CAN
AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO WARNING.

MCCARTHY

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, Mar 17, 3:16 PM CST, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
315 PM CST FRI MAR 17 1989

...THUNDERSTORMS DEVELOPING OVER CENTRAL MISSOURI...

AT 300 PM THUNDERSTORMS WERE DEVELOPING OVER EAST CENTRAL MISSOURI
IN A 10 MILES WIDE LINE FROM 40 MILES NORTHEAST OF COLUMBIA TO
15 MILES EAST OF JEFFERSON CITY.  THE STRONGEST STORM WAS OVER LINN
IN OSAGE COUNTY...15 MILES EAST OF JEFFERSON CITY.  THE OSAGE COUNTY
SHERIFF REPORTED PEA SIZED HAIL WIwTH THIS STORM AT 305 PM.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.

PERSONS IN THE AREA OF THESE STORMS SHOULD BE ALERT FOR LARGE HAIL
AND VERY HEAVY.  LISTEN FOR LATER STATEMENTS.

MET
Special weather statement, Mar 17, 3:17 PM CST, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION TO LAST PARAGRAPH...
NATIONAL WEATHER SERVICE COLUMBIA MO
315 PM CST FRI MAR 17 1989

...THUNDERSTORMS DEVELOPING OVER CENTRAL MISSOURI...

AT 300 PM THUNDERSTORMS WERE DEVELOPING OVER EAST CENTRAL MISSOURI
IN A 10 MILES WIDE LINE FROM 40 MILES NORTHEAST OF COLUMBIA TO
15 MILES EAST OF JEFFERSON CITY.  THE STRONGEST STORM WAS OVER LINN
IN OSAGE COUNTY...15 MILES EAST OF JEFFERSON CITY.  THE OSAGE COUNTY
SHERIFF REPORTED PEA SIZED HAIL WITH THIS STORM AT 305 PM.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.

PERSONS IN THE AREA OF THESE STORMS SHOULD BE ALERT FOR LARGE HAIL
AND VERY HEAVY RAIN.  LISTEN FOR LATER STATEMENzTS.

MET
Special weather statement, Mar 17, 3:24 PM CST, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
325 PM  CST FRI MAR 17 1989

...STRONG THUNDERSTORM IN EAST CENTRAL MISSOURI...

AT 320 PM  RADAR INDICATED A STRONG THUNDERSTORM IN EAST CENTRAL
MISSOURI JUST WEST OF MONTGOMERY CITY OR 30 MILES EAST NORTHEAST OF
COLUMBIA.  THE STORM IS MOVING TO THE NORTHEAST AT 50 MPH.
HAIL AND STRONG WINDS ARE EXPECTED IN MONTGOMERY COUNTY AS THE STORM
MOVES NEAR MONTGOMERY CITY AND WELLSVILLE BETWEEN 330 AND 4 PM.

HAMILTON

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 3:54 PM CSTSevere Thunderstorm WarningLSXLincoln51 min
Mar 17, 5:17 PM CSTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis43 min
Mar 17, 4:54 PM CSTSevere Thunderstorm WarningLSXJersey36 min
Mar 17, 5:44 PM CSTSevere Thunderstorm WarningLSXMadison46 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1989Severe Thunderstorm Warnings in Illinois, 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.