Alert archive / Missouri / Tornado Warnings in 1989
Tornado Warning 2, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 1989, 6:36 PM CDT for Clark County, Missouri. It was in force for 69 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
- Apr 27, 1989, 6:36 PM CDT (23:36 UTC)
- Expired
- Apr 27, 1989, 7:45 PM CDT
- In force
- 69 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Clark 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 |
|---|---|---|---|
| Apr 27, 7:30 PM CDT | Tornado F1 | Clark, 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, 11.6 hours before the alert went out and 183 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
- 7 J/kg
- Mixed-layer CIN
- -552 J/kg
- Mixed-layer LCL
- 1747 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 272333
TORSTL
MOC045-280045-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
636 PM CDT THU APR 27 1989
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 745 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHEAST MISSOURI
...CLARK
A TORNADO HAS BEEN REPORTED NEAR KEOSAUQUA IN VAN BUREN COUNTY IOWA AT
625 PM CDT. THIS STORM WAS MOVING TO THE SOUTHEAST AROUND 30 MPH. THIS
STORM WILL BE MOVING INTO CLARK COUNTY IN NORTHEAST MISSOURI BETWEEN
630 AND 700 PM.
CAHOKA IN CLARK COUNTY IS ABOUT 35 MILES NORTHEAST OF KIRKSVILLE.
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
DO NOT USE YO=UR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.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, 11:01 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 44 min |
| Apr 26, 11:08 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 52 min |
Nearby
Tornado Warnings in Missouri, 1989Every tornado warning in 1989Tornadoes 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.