Alert archive / Missouri / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 101, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 3, 1991, 10:21 PM CDT for Marion County, Shelby County, Missouri. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Oct 3, 1991, 10:21 PM CDT (03:21 UTC)
- Expired
- Oct 3, 1991, 11:15 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Marion County, MO, Shelby County, MO
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 3.4 hours before the alert went out and 338 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
- 79 J/kg
- Mixed-layer CIN
- -478 J/kg
- Mixed-layer LCL
- 649 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 417 m²/s²
- 0-3 km storm-relative helicity
- 810 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 040323 SVRSTL MOC127-205-040415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1021 PM CDT THU OCT 3 1991 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST MISSOURI ...MARION COUNTY...EASTERN SHELBY COUNTY AT 1015 PM...A VERY LARGE THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE RADAR OVER THE EASTERN HALF OF SHELBY COUNTY...THIS IS SOME 30 MILES WEST OF QUINCY. THIS STORM PRODUCED 3/4 INCH HAIL AND TORRENTIAL RAINS AS IT PASSED THROUGH NORTHEAST MACON COUNTY BETWEEN 930 AND 10 PM. THIS STORM WAS MOVING EAST-SOUTHEAST AT 25 MILES AN HOUR...AND WILL BE AFFECTING THE CITIES OF WARREN...PHILADELPHIA...AND PALMYRA. 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. TRUETT
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, Oct 3, 5:06 PM CDT, 5 hours 15 minutes before
MOZ011-012-018-ILZ011-032300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 504 PM CDT THU OCT 3 1991 AT 500 PM...RADAR INDICATED A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN FROM ABOUT 50 MILES NORTHWEST OF ST LOUIS THROUGH ST CHARLES COUNTY TO ABOUT 40 MILES SOUTHWEST OF ST LOUIS. THESE STORMS WERE MOVING EAST AT 25 MILES AN HOUR. VERY HEAVY RAIN HAS BEEN REPORTED IN SOUTHERN ST CHARLES COUNTY AS THESE STORMS MOVED THROUGH. NO SEVERE WEATHER HAS BEEN REPORTED AS OF 500 PM. THESE STORMS WILL CONTINUE TO MOVE INTO THE ST LOUIS METRO AREA THROUGH THE NEXT HOUR. VERY HEAVY RAIN...SMALL HAIL...FREQUENT LIGHTNING AND BRIEF GUSTY WINDS CAN BE EXPECTED. IF YOU ARE OUTDOORS...MOVE INSIDE OR TO A PLACE OF SHELTER UNTIL THESE STORMS PASS. STAY TUNED TO NATIONAL WEATHER SERVICE RADIO FOR FURTHER STATEMENTS. SHEA
Special weather statement, Oct 3, 6:07 PM CDT, 4 hours 14 minutes before
MOZ011-012-018-ILZ011-040000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 605 PM CDT THU OCT 3 1991 ...THUNDERSTORMS WEAKENING OVER EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS... THE THUNDERSTORMS OVER EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS DECREASED DRAMATICALLY IN INTENSITY BETWEEN 5 AND 6 PM. AT 605 PM... THE LINE OF STORMS WAS IN SOUTHWEST ILLINOIS...AND STRETCHED FROM ABOUT 50 MILES NORTHWEST OF ST LOUIS NEAR LITCHFIELD ILLINOIS...TO JUST SOUTHEAST OF ST LOUIS...NEAR BELLEVILLE. BRIEF HEAVY RAINS MAY STILL BE POSSIBLE WITH SOME OF THE HEAVIER STORMS IN THE LINE...BUT AT THIS TIME HAIL AND GUSTY WINDS APPEAR UNLIKELY. THE STORMS SHOULD CONTINUE TO WEAKEN AS THEY MOVE EAST AT 25 MILES AN HOUR. TRUETT
Special weather statement, Oct 3, 7:24 PM CDT, 2 hours 57 minutes before
MOZ003-006-007-010-040130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 721 PM CDT THU OCT 3 1991 ...STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST MISSOURI... AT 720 PM...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING OVER NORTHEAST MISSOURI. THE STORMS EXTENDED FROM 50 MILES NORTHWEST OF COLUMBIA NEAR BRUNSWICK...TO 25 MILES EAST OF KIRKSVILLE...NEAR LA BELLE. THE STRONGER STORMS IN THIS AREA WERE GENERALLY BETWEEN BRUNSWICK AND KIRKSVILLE...WITH ANOTHER STRONG STORM NEAR LA BELLE. THESE STRONGER STORMS WERE PRODUCING BRIEF VERY HEAVY RAINS...AS WELL AS SOME SMALL HAIL...BUT AT THIS TIME NO SEVERE WEATHER WAS INDICATED...AND NONE HAS BEEN REPORTED. HOWEVER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHEAST MISSOURI...INCLUDING THE HANNIBAL AREA...UNTIL 11 PM. PEOPLE IN THE WATCH AREA SHOULD REMAIN ALERT...AND CAREFULLY MONITOR LOCAL NEWS MEDIA AND WEATHER RADIO FOR FURTHER INFORMATION. TRUETT
Special weather statement, Oct 3, 7:46 PM CDT, 2 hours 35 minutes before
MOZALL-040700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 745 PM CDT THU OCT 3 1991 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR EASTERN MISSOURI UNTIL 200 AM CDT FRIDAY MORNING... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A LARGE PART OF NORTHERN AND CENTRAL MISSOURI UNTIL 1100 PM CDT... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR EASTERN MISSOURI UNTIL 200 AM FRIDAY MORNING. THIS INCLUDES THE ST LOUIS METROPOLITAN AREA AND THE QUICNY/HANNIBAL AREA. THUNDERSTORMS WILL MOVE INTO THIS AREA WHICH COULD PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. DEADLY LIGHTNING AND VERY HEAVY RAINS ARE ALSO POSSIBLE. RESIDENTS OF MISSOURI IN AND CLOSE TO THE WATSCH AREAS SHOULD KEEP ALERT FOR RAPIDLY CHANGING WEATHER THIS EVENING AND EARLY FRIDAY MORNING. SHEA
Special weather statement, Oct 3, 9:29 PM CDT, 52 minutes before
MOZALL-040700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 927 PM CDT THU OCT 3 1991 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHERN AND CENTRAL MISSOURI UNTIL 200 AM CDT FRIDAY MORNING... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR EASTERN MISSOURI ALSO UNTIL 200 AM CDT FRIDAY MORNING... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHERN AND CENTRAL MISSOURI UNTIL 200 AM FRIDAY MORNING. THIS WATCH REPLACES THE OLDER ONE THAT WAS IN EFFECT UNTIL 1100 PM. DAMAGING THUNDERSTORM WINDS... LARGE HAIL AND VERY HEAVY RAIN ARE POSSIBLE IN AND CLOSE TO THE WATCH AREAS. RESIDENTS OF MISSOURI IN AND CLOSE TO THE WATCH AREAS SHOULD KEEP ALERT FOR RAPIDLY CHANGING WEATHER THIS EVENING AND EARLY FRIDAY MORNING. SHEA
Local storm report, Oct 3, 9:59 PM CDT, 22 minutes before
MO010-040315-
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA MO
1015 PM CDT THU OCT 3 1991
TIME COUNTY REPORT
520 PM PETTIS GOLF BALL SIZED HAIL 5 MILES WEST OF SEDALIA.
555 PM PETTIS HAIL COVERING GROUND 1 TO 2 INCHES DEEP IN
PARTS OF SEDALIA.
555 PM COOPER GOLF BALL SIZED HAIL IN WESTERN COOPER COUNTY.
655 PM MONITEAU 2 INCH HAIL AT CLARKSBURG.
845 PM L MACON 3/4 INCH HAIL AT LA PLATA.
945 PM MACON 3/4 INCH HAIL COMING HARD AND HEAVY IN LA PLATA.
LA GREEThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 3, 7:49 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 26 min |
| Oct 3, 8:05 PM CDT | Severe Thunderstorm Warning | LSX | Adair | 40 min |
| Oct 3, 8:15 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Monroe, Ralls, Shelby | 45 min |
| Oct 3, 8:47 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 43 min |
| Oct 3, 8:47 PM CDT | Severe Thunderstorm Warning | LSX | Adair | 43 min |
| Oct 3, 9:08 PM CDT | Severe Thunderstorm Warning | LSX | Adair | 52 min |
| Oct 3, 9:27 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Shelby | 63 min |
| Oct 3, 9:53 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 52 min |
| Oct 4, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 48 min |
| Oct 4, 4:50 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 55 min |
| Oct 4, 5:33 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 42 min |
| Oct 4, 5:41 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 57 min |
| Oct 4, 6:18 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 57 min |
| Oct 4, 6:18 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 57 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1991Every severe thunderstorm warning in 1991
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.