Alert archive / Missouri / Tornado Warnings in 1991
Tornado Warning 3, NWS Kansas City, MO
NWS Kansas City, MO issued this tornado warning at May 4, 1991, 7:13 PM CDT for Pettis County, Missouri. It was in force for 47 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
- May 4, 1991, 7:13 PM CDT (00:13 UTC)
- Expired
- May 4, 1991, 8:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Pettis County, MO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 7:30 PM CDT | Hail 0.75 | Pettis, 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
Topeka, KS (KTOP), launched 00:00Z, 0.2 hours before the alert went out and 206 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
- 606 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 400 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCOU 050013 TORCOU MOC159-050100- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE COLUMBIA MO 713 PM CDT SAT MAY 4 1991 THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN CENTRAL MISSOURI ...NORTHERN PETTIS COUNTY AT 710 PM CDT RADAR SHOWED A POSSIBLE TORNADO ABOUT 10 MILES NORTH-NORTHWEST OF SEDALIA...AND AN UNCONFIRMED FUNNEL WAS REPORTED BY THE PU8LIC AROUND 700 PM CDT JUST WEST OF SEDALIA MOVING TO THE NORTHEAST AROUND 25 MILES AN HOUR. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A TABLE OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...TAKE SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. REMEMBER TO STAY AWAY FROM WINDOWS.
What forecasters said that day
The local office's own words before this tornado 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 4, 1:44 PM CDT, 5 hours 29 minutes before
MOZ001-004-041930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 140 PM CDT SAT MAY 4 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF NORTHEAST KANSAS AND NORTHWEST MISSOURI UNTIL 500 PM CDT... AT 125 PM... THUNDERSTORMS... SOME WITH VERY HEAVY RAIN... WERE OVER PARTS OF NORTHEAST KANSAS. ONE OF THE STRONGEST STORMS WAS LOCATED JUST NORTH OF HIAWATHA KANSAS... OR ABOUT 30 MILES NORTHWEST OF ST JOSEPH. THE STORM WAS MOVING NORTHEAST AT 40 MILES AN HOUR... AND WILL MOVE INTO HOLT COUNTY MISSOURI BEFORE 200 PM. OTHER STRONG STORMS WERE LOCATED FROM ABOUT 15 MILES WEST OF TOPEKA NORTH TO THE NEBRASKA BORDER. THESE STORMS WERE ALSO MOVING NORTHEAST AT 40 MILES AN HOUR. THESE STORMS HAVE A HISTORY OF PRODUCING STRONG WINDS AND SMALL HAIL... AS WELL AS BRIEF HEAVY RAINS. PEOPLE IN FAR NORTHWEST MISSOURI NORTH OF ST JOSEPH SHLOLD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS... AND SEEK SHELTER IF THREATENING WEATHER APPROACHES. MSL
Special weather statement, May 4, 4:46 PM CDT, 2 hours 27 minutes before
MOZ002-005-008-009-013-042135- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 430 PM CDT SAT MAY 4 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EAST CENTRAL KANSAS... LARGE PART OF NORTHERN AND CENTRAL MISSOURI UNTIL 10 PM CDT. AT 435 PM... THUNDERSTORMS... SOME WITH VERY HEAVY RAIN... WERE OVER PARTS OF NORTHEAST AND NORTH CENTRAL MISSOURI. THE STRONGEST STORM WAS LOCATED JUST NORTH OF CARROLLTON MISSOURI IN CARROLL COUNTY. OTHER STORMS WERE LOCATED FROM THE IOWA/MISSOURI FROM NEAR LAMOINI IOWA SOUTH TO CHILLICOTHE MISSOURI. THESE STORMS WERE MOVING NORTHEAST AT 35 MPH. AT THIS NO THUNDERSTORMS ARE THREATHING THE KANSAS CITY METROPOLITIAN AREA...HOWERVER STRONG THUNDERSTORMS WERE DEVELOPING AROUND THE WICHITA AREA AND WERE MOVING NORTHEAST.
Local storm report, May 4, 5:00 PM CDT, 2 hours 13 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
500 PM CDT SAT MAY 4 1991
...SEVERE WEATHER FOR THE AFTERNOON OF 5/4/91...
TIME EVENT LOCATION
150 PM CDT GOLFBALL HAIL MOUND CITY IN HOLT COUNTY MO
224 PM CDT 3/4 HAIL SOUTH OF TROY IN DONIPHAN
COUNTY KS
240 PM CDT 3/4 HAIL AND VERY ST JOSEPH IN BUCHANAN COUNTY
HEAVY RAIN MO
300 PM CDT MARBLE TO 3/4 HAIL HELENA IN SOUTHEAST
ANDREW COUNTY MO
310 PM CDT GOLFBALL HAIL PLATTSBURG IN CLINTON COUNTY
MO
348 PM CDT MARBLE TO 3/4 HAIL EAST OF BETHANY IN EASTERN
HARRISON COUNTY MO
.
350 PM CDT 3/4 HAIL AT POLO IN CALDWELL COUNTY
MO
ENDSpecial weather statement, May 4, 5:45 PM CDT, 1 hour 28 minutes before
MOZ002-005-008-009-013-042340- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 540 PM CDT SAT MAY 4 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EAST CENTRAL KANSAS AND MUCH OF NORTHERN AND CENTRAL MISSOURI UNTIL 10 PM CDT. AT 530 PM... SCATTERED THUNDERSTORMS... SOME WITH VERY HEAVY RAIN... WERE OVER PARTS OF NORTHERN MISSOURI. THIS ACTIVITY WAS LOCATED FROM 75 MILES EAST OF KANSAS CITY NEAR MARSHALL NORTH TO 25 MILES NORTHWEST OF KIRKSVILLE. OTHER STRONG THUNDERSTORMS WERE OVER PARTS OF SOUTHEAST KANSAS... BETWEEN WICHITA AND CHANUTE. ISOLATED SHOWERS WERE LOCATED JUST NORTH OF CHANUTE IN SOUTHEAST KANSAS... AND BETWEEN KANSAS CITY AND SEDALIA IN WEST CENTRAL MISSOURI. MOVEMENT OF ALL SHOWERS AND THUNDERSTORMS WAS NORTHEAST AT 40 MILES AN HOUR. NO THUNDERSTORM ACTIVITY WAS THREATENING THE GREATER KANSAS CITY AREA AT 530 PM. HOWEVER... SHOWERS AND STRONG THUNDER STORMS ARE EXPECTED TO DEVELOP OVER EASTERN KANSAS AND MOVE INTO OUR AREA LATER THIS EVENING. STAY TUNED TO NOAA WEATHER RADIO... COMMERCIAL RADIO OR TELEVISION FOR LATER STATEMENTS ON THESE THUNDERSTORMS. MSL
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:34 PM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan | 26 min |
| May 4, 8:35 PM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Clinton | 25 min |
| May 4, 8:42 PM CDT | Severe Thunderstorm Warning | EAX | Johnson | 48 min |
Nearby
Tornado Warnings in Missouri, 1991Every tornado warning in 1991Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.