Alert archive / Missouri / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 66, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Nov 15, 1989, 4:00 AM CST for Saint Charles County, Saint Louis County, Missouri. It was in force for 45 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
- Nov 15, 1989, 4:00 AM CST (10:00 UTC)
- Expired
- Nov 15, 1989, 4:45 AM CST
- In force
- 45 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 |
|---|---|---|---|
| Nov 15, 4:27 AM CST | Thunderstorm Wind 52 | St. Louis, MO | |
| Nov 15, 4:43 AM CST | Thunderstorm Wind 52 | 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, 10.0 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
- 425 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 717 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 151001 SVRSTL MOC183-189-151045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 400 AM CST WED NOV 15 1989 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...SOUTHERN ST CHARLES COUNTY...WEST ST LOUIS COUNTY AT 4AM...A SEVERE THUNDERSTORM WAS LOCATED IN FRANKLIN COUNTY NEAR ST. CLAIR. 1 INCH HAIL WAS REPORTED AT ST. CLAIR. THIS WAS JUST SOUTHWEST OF THE GREATER ST. LOUIS AREA. THIS SEVERE THUNDERSTORM WILL BE MOVING INTO WEST PORTIONS OF ST LOUIS COUNTY..AND EXTREME SOUTH SECTIONS OF ST CHARLES COUNTY BETWEEN 4 AND 5AM THIS MORNING. LARGE HAIL...DANGEROUS LIGHTNING... BRIEF HEAVY RAIN..AND THE POSSIBILITY OF HAIL CAN BE EXPECTED WITH THE STORMS PASSAGE. 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. FELDT
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, Nov 15, 2:13 AM CST, 1 hour 47 minutes before
MOZ013-014-150900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 210 AM CST WED NOV 15 1989 ...VERY STRONG THUNDERSTORMS DEVELOPING OVER SOUTH CENTRAL SECTIONS OF CENTRAL MISSOURI THIS MORNING... AT 200 AM A VERY STRONG THUNDERSTORM WAS 45 MILES SOUTH OF SEDALIA NEAR HERMITAGE...AND OTHER SCATTERED INTENSE THUNDERSTORMS WERE IN A BAND 10 MILES WIDE AND EXTENDED FROM 25 MILES NORTHEAST OF SPRINGFIELD TO ABOUT 10 MILES NORTH OF ROLLA. THESE THUNDERSTORMS WILL LIKELY CONTAIN HAIL...BRIEF STRONG GUSTY WIND...ALONG WITH HEAVY RAIN AND VERY DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED AROUND CENTRAL MISSOURI THIS MORNING...HOWEVER THE POSSIBILITY EXISTS OVER SOUTH SECTIONS OF CENTRAL MISSOURI FOR THE REMAINDER OF THE MORNING. AL
Special weather statement, Nov 15, 3:02 AM CST, 58 minutes before
MOZ017-018-151000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 300 AM CST WED NOV 15 1989 ...STRONG THUNDERSTORMS DEVELOPING IN FRANKLIN COUNTY... AT 3AM...AN AREA OF VERY STRONG THUNDERSTORMS WAS LOCATED IN THE SOUTHWEST CORNER OF FRANKLIN COUNTY WHILE ANOTHER STRONG STORM WAS LOCATED NEAR ROLLA IN PHELPS COUNTY. THIS WAS BETWEEN 50 AND 75 MILES SOUTHWEST OF ST. LOUIS. HAIL WAS REPORTED AT DIXON IN PULASKI COUNTY AS THESE STORMS MOVED THROUGH. BETWEEN 3 AND 4AM THIS MORNING..THESE VERY STRONG STORMS WILL MOVE NORTHEAST ACROSS PORTIONS OF FRANKLIN...NORTHWEST CRAWFORD..AND NORTHERN PHELPS COUNTIES. HIGH WINDS...BRIEF HEAVY RAIN..DANGEROUS LIGHTNING AND HAIL CAN BE EXPECTED WITH THE STORMS PASSAGE. FELDT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 3:41 AM CST | Severe Thunderstorm Warning | LSX | Franklin | 49 min |
| Nov 15, 4:33 AM CST | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 42 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.