Alert archive / Missouri / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 39, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 24, 1989, 11:19 PM CDT for Knox County, Lewis County, Shelby County, Missouri. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- May 24, 1989, 11:19 PM CDT (04:19 UTC)
- Expired
- May 25, 1989, 12:00 AM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Knox County, MO, Lewis County, MO, Shelby 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
Peoria Regional, IL (KPIA), launched 00:00Z, 4.3 hours before the alert went out and 215 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 250421
SVRSTL
MOC103-111-205-250500-
BULLETIN...IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1119 PM CDT WED MAY 24 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL MIDNIGHT CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF
NORTHEAST MISSOURI...
LEWIS...SOUTHEAST KNOX AND NORTHERN SHELBY
AT 1115 PM CDT A SMALL BAND OF SEVERE THUNDERSTORMS WAS IN NORTHEAST
MISSOURI FROM 40 MILES NORTHWEST OF HANNIBAL TO 30 MILES SOUTHEAST OF
KIRKSVILLE...OR FROM JUST NORTHEAST OF LABELLE MISSOURI TO JUST SOUTH
OF NOVELTY. THE STORMS WERE MOVING TO THE EAST SOUTHEAST AT 35 MPH.
ONE STORM DOWNED SOME TREES NEAR KNOX CITY MISSOURI...IN KNOX COUNTY
SHORTLY AFTER 11 PM.
PERSONS IN THE PATH OF THIS STORM SHOULD BE ALERT FOR DAMAGING
WINDS...LARGE HAIL AND FREQUENT LIGHTNING. VERY HEAVY RAIN COULD
RAPIDLY FLOOD LOW LYING AREAS.
REMEMBER THAT A TORNADO WATCH IS ALSO IN EFFECT. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NOW WARNING.
REPORT ANY SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY OR
THE NATIONAL WEATHER SERVICE.
MCCARTHYWhat 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, 4 hours 14 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, 1 hour 25 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, 10:41 PM CDT | Severe Thunderstorm Warning | LSX | Clark, Knox, Lewis | 34 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, 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; the sounding from the Mesonet's radiosonde archive.