Alert archive / Missouri / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 38, NWS St. Louis, MO

May 24, 1989Clark County, Knox County, Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 24, 1989, 10:41 PM CDT for Clark County, Knox County, Lewis County, Missouri. It was in force for 34 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: May 24, 1989, 10:41 PM CDT (03:41 UTC)
Expired: May 24, 1989, 11:15 PM CDT
In force: 34 min
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Clark County, MO, Knox County, MO, Lewis 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

Time	Report	Where	Remark
May 24, 11:05 PM CDT	Thunderstorm Wind 0	Knox, 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 00:00Z, 3.7 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 48 kt
0-1 km storm-relative helicity: 230 m²/s²
0-3 km storm-relative helicity: 347 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 250342
SVRSTL
MOC045-103-111-250415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1041 PM CDT WED MAY 24 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHEAST MISSOURI...
    CLARK...KNOX AND LEWIS

AT 1035 PM CDT A SMALL LINE OF SEVERE THUNDERSTORMS EXTENDED FROM
BETWEEN MEMPHIS AND EDINA MISSOURI...20 MILES EAST OF KIRKSVILLE...
INTO CLARK COUNTY...ALMOST 40 MILES NORTHEAST OF KIRKSVILLE.

THE STORMS WERE MOVING TO THE EAST SOUTHEAST AT 35 MPH.  MARBLE
SIZE HAIL WAS REPORTED AT BARING MISSOURI...20 MILES EAST OF
KIRKSVILLE...JUST AFTER 1030 PM BY THE KNOX COUNTY SHERIFF.

PROTECT YOURSELF FROM THE DANGERS OF LARGE HAIL...DAMAGING WIND AND
LIGHTNING BY REMAINING INDOORS...AWAY FROM WINDOWS.  REMEMBER THAT
HEAVY RAIN CAN QUICKLY FLOOD LOW LYING AREAS.

A TORNADO WATCH IS ALSO IN EFFECT FOR NORTHEAST MISSOURI.  SEVERE
THUNDERSTORMS CAN AND OCCAIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO WARNING.

PLEASE REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY
OR THE NATIONAL WEATHER SERVICE.

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, May 24, 7:05 PM CDT, 3 hours 36 minutes before

SPECIAL WEATHER STATEMENT AND MISSOURI WEATHER SUMMARY
NATIONAL WEATHER SERVICE ST LOUIS MO
700 PM CDT WED MAY 24 1989

...SEVERE WEATHER POTENTIAL FOR MISSOURI...

A TORNADO WATCH HAS BEEN POSTED FOR A LARGE PART OF NORTHERN MISSOURI
UNTIL MIDNIGHT.  AT 7 PM A CLUSTER OF THUNDERSTORMS...SOME SEVERE...
WAS IN SOUTHWEST IOWA...JUST NORTH OF THE MISSOURI STATE LINE.  THESE
STORMS WERE MOVING TO THE EAST NORTHEAST...BUT ADDITIONAL DEVELOPMENT
IS EXPECTED OVER NORTHWEST THROUGH NORTH CENTRAL MISSOURI EARLY
TONIGHT.

ELSEWHERE IN MISSOURI JUST BEFORE 7 PM SKIES WERE PARTLY TO MOSTLY
CLOUDY.  ISOLATED THUNDERSHOWERS OVER SOUTHEAST MISSOURI EARLIER THIS
EVENING HAVE DIMINISHED AND MOVED INTO SOUTHERN ILLINOIS.
TEMPERATURES AROUND MISSOURI AT 7 PM WERE IN THE UPPER 70S TO MID 80S.

CONDITIONS REMAIN FAVORABLE FOR THE REDEVELOPMENT OF MORE
THUNDERSTORMS IN MISSOURI LATER TONIGHT...ESPECIALLY OVER THE NORTH
AND WEST PARTS OF THE STATE...THEN INTO THURSDAY OVER THE SOUTHEAST.

THE STORMS ARE EXPECTED AHEAD OF A COLD FRONT THAT WAS JUST BEGINNING
TO PUSH INTO THE FAR NORTHWEST TIP OF MISSOURI THIS EVENING FROM THE
PLAINS.  THE FRONT WILL MAKE ITS WAY SOUTHEAST THROUGH THE STATE LATER
TONIGHT AND THURSDAY...FOLLOWED BY SOME COOLER AND DRIER AIR THAT WILL
PREVAIL TO THE END OF THE WEEK.

FAIR WEATHER IS EXPECTED FOR AT LEAST THE FIRST PART OF THE UPCOMING
HOLIDAY WEEKEND...WITH A CHANCE FOR MORE THUNDERSTORMS ON MONDAY.

MCCARTHY

Special weather statement, May 24, 9:54 PM CDT, 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
950 PM CDT WED MAY 24 1989

...TORNADO WATCH FOR PARTS OF NORTHERN AND WEST CENTRAL MISSOURI
INTO WEST CENTRAL ILLINOIS...

AT 940 PM A BAND OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...
STRONG WINDS AND POSSIBLY HAIL...EXTENDED FROM LANCASTER MISSOURI...
ABOUT 20 MILES NORTH OF KIRKSVILLE...TO NEAR KANSAS CITY.
THE STORMS WERE MOVING TO THE EAST AT 40 MPH AND WILL CONTINUE
TRACKING ACROSS PARTS OF NORTHEAST AND NORTH CENTRAL MISSOURI
FROM 10 PM TO MIDNIGHT.

A FEW OF THESE STORMS SHOULD REACH THE KIRKSVILLE AREA BY 1030 PM.

MCCARTHY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 10:12 PM CDT	Severe Thunderstorm Warning	LSX	Schuyler, Scotland	36 min
May 24, 11:19 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Shelby	41 min
May 25, 8:17 AM CDT	Severe Thunderstorm Warning	LSX	Marion, Monroe, Shelby	58 min
May 25, 8:17 AM CDT	Severe Thunderstorm Warning	LSX	Ralls	58 min
May 25, 8:50 AM CDT	Severe Thunderstorm Warning	LSX	Pike	55 min
May 25, 9:59 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Warren	31 min
May 25, 10:11 AM CDT	Severe Thunderstorm Warning	LSX	Monroe	34 min
May 25, 10:28 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis	47 min
May 25, 10:28 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson	47 min
May 25, 10:59 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson	31 min
May 25, 11:05 AM CDT	Severe Thunderstorm Warning	LSX	Pike	25 min
May 25, 11:37 AM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	38 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1989 Every 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.