Alert archive / Missouri / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 25, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 26, 1989, 11:01 PM CDT for Saint Charles County, Saint Louis County, Missouri. It was in force for 44 min. 2 reports 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
- Apr 26, 1989, 11:01 PM CDT (04:01 UTC)
- Expired
- Apr 26, 1989, 11:45 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
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 |
|---|---|---|---|
| Apr 26, 11:10 PM CDT | Thunderstorm Wind 70 | St. Charles, MO | |
| Apr 26, 11:12 PM CDT | Thunderstorm Wind 70 | St. 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
Peoria Regional, IL (KPIA), launched 00:00Z, 4.0 hours before the alert went out and 233 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
- 1526 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1669 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 270359
SVRSTL
MOC183-189-270445-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1101 PM CDT WED APR 26 1989
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL MISSOURI
...ST CHARLES...NORTHERN ST LOUIS
AT 1055 PM CDT...PUBLIC CALL FROM PORTAGE DES SIOUX OF 50 TO 60 MPH
WINDS ASSOCIATED WITH THUNDERSTORMS. THESE STORMS WERE MOVING TO THE
SOUTH AROUND 35 MPH.
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 INTO AREAS WHERE WATER COVERS THE ROAD.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, Apr 26, 7:58 PM CDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 750 PM CDT WED APR 26 1989 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 11 PM FOR EXTREME NORTH MISSOURI... AT 750 PM...THE SHERIFFS OFFICE IN CAHOKA IN CLARK COUNTY IN NORTHEAST MISSOURI REPORTED A STRONG THUNDERSTORM WITH STRONG WINDS. NO REPORTS OF SEVERE WEATHER HAVE BEEN REPORTED TO THE NATIONAL WEATHER SERVICE AT THIS TIME. PERSONS IN CLARK COUNTY SHOULD REMAIN ALE:RT FOR THE POSSIBILITY OF SEVERE WEATHER THIS EVENING. A FEW OF THESE THUNDERSTORMS WERE SEVERE AS THEY MOVED ACROSS IOWA. THE WEATHER OFFICE IN PEORIA REPORTED A WIND GUST TO 69 MPH AT 750 PM.
Special weather statement, Apr 26, 10:19 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1015 PM CDT WED APR 26 1989 ...GUSTY WINDS HEADED INTO EAST CENTRAL MISSOURI... THE THUNDERSTORMS IN NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS HAVE PRODUCED A STRONG OUTFLOW OF WIND WHICH IS MOVING SOUTH. THIS WIND WILL REACH LINCOLN COUNTY MISSOURI AND CALHOUN COUNTY ILLINOIS NEAR 1030 PM AND THEN REACH ST CHARLES COUNTY MISSOURI AND JERSEY COUNTY ILLINOIS BETWEEN 1040 AND 11 PM. WINDS OF 35 TO 45 MPH CAN BE EXPECTED. THE WINDS WILL CONTINUE TO PUSH SOUTH INTO THE ST LOUIS AREA BUT WILL WEAKEN TO ABOUT 30 MPH. A FEW SHOWERS AND THUNDERSTORMS WILL DRIFT INTO THE ST LOUIS AREA AROUND MIDNIGHT BUT THE BEST CHANCHE OF RAIN WILL PROBABLY BE JUST TO THE EAST OF ST LOUIS. TUCKER
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 9:28 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 32 min |
| Apr 26, 11:08 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 52 min |
| Apr 27, 6:36 PM CDT | Tornado Warning | LSX | Clark | 69 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.