Alert archive / Missouri / Tornado Warnings in 2024
Tornado Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 1, 2024, 6:33 PM CDT for Saint Louis County, City of Saint Louis, Missouri. It was in force for 42 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 1, 2024, 6:33 PM CDT (23:33 UTC)
- Expired
- Apr 1, 2024, 7:15 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
The radar
The St Louis radar (KLSX), 33 km from the middle of the area, began a volume at 23:37 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 1, 6:36 PM CDT | TSTM WND DMG | 3 Nw Town And Country, MO | Uprooted tree. No picture. |
| Apr 1, 6:41 PM CDT | HAIL 1.25 | 2 Ese Maryland Heights, MO | Estimated from picture of large hail covering the ground. |
| Apr 1, 6:55 PM CDT | HAIL 1.75 | 1 Wsw Ferguson, MO | Picture of golf ball sized hail in Ferguson estimated compared to penny in hand. |
| Apr 1, 6:56 PM CDT | HAIL 1.5 | Ferguson, MO | |
| Apr 1, 6:59 PM CDT | HAIL 1 | Jennings, MO | Unsure on the true size of the stones, but was confident they were larger than quarters. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 1, 4:49 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 218 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
- 621 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
604
WFUS53 KLSX 012333
TORLSX
MOC189-510-020015-
/O.NEW.KLSX.TO.W.0018.240401T2333Z-240402T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
633 PM CDT Mon Apr 1 2024
The National Weather Service in St Louis has issued a
* Tornado Warning for...
St. Louis City in east central Missouri...
Central St. Louis County in east central Missouri...
* Until 715 PM CDT.
* At 633 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Chesterfield, moving east at 30 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Chesterfield, Maryland Heights, Creve Coeur, Overland, Town and
Country, Ladue, Des Peres, Olivette, Frontenac, and Crystal Lake
Park around 640 PM CDT.
University City, Clayton, St. Ann, Bridgeton, Richmond Heights,
Brentwood, Warson Woods, Breckenridge Hills, Vinita Park, and
Sycamore Hills around 645 PM CDT.
St. Louis, Berkeley, Maplewood, St. John, Normandy, Woodson
Terrace, Bel-Ridge, Rock Hill, Pagedale, and Wellston around 650
PM CDT.
Other locations in the path of this tornadic thunderstorm include
Ferguson, Jennings, Northwoods, Hillsdale, Cool Valley, Kinloch, Pine
Lawn, Velda City, Country Club Hills, Velda Village Hills,
Bellefontaine Neighbors, Flordell Hills, Riverview, Moline Acres and
Glasgow Village.
This also includes Scott Joplin Historic Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3877 9017 3875 9018 3872 9021 3871 9021
3868 9019 3865 9018 3862 9018 3860 9019
3860 9058 3868 9060 3868 9056 3869 9053
3871 9053 3879 9014
TIME...MOT...LOC 2333Z 261DEG 25KT 3865 9053
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
$$
Pfahler4 follow-up statements
864
WWUS53 KLSX 012339
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
639 PM CDT Mon Apr 1 2024
MOC189-510-020015-
/O.CON.KLSX.TO.W.0018.000000T0000Z-240402T0015Z/
St. Louis City MO-St. Louis MO-
639 PM CDT Mon Apr 1 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR CENTRAL
ST. LOUIS COUNTY AND NORTHERN ST. LOUIS CITY...
At 639 PM CDT, a confirmed tornado was located over Creve Coeur,
moving east at 25 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
University City, Maryland Heights, Creve Coeur, Overland, Clayton,
St. Ann, Bridgeton, Town and Country, Richmond Heights, and Ladue
around 645 PM CDT.
Berkeley, Brentwood, Normandy, Woodson Terrace, Bel-Ridge,
Lambert-St. Louis International Airport, Pagedale, Wellston,
Hanley Hills, and Bel-Nor around 650 PM CDT.
Other locations in the path of this tornadic thunderstorm include St.
Louis, Ferguson, Jennings, Northwoods, Hillsdale, Cool Valley,
Kinloch, Pine Lawn, Velda City, Country Club Hills, Bellefontaine
Neighbors, Dellwood, Flordell Hills, Riverview, Moline Acres, Castle
Point and Glasgow Village.
This also includes Scott Joplin Historic Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3862 9053 3869 9054 3869 9053 3871 9053
3879 9014 3877 9017 3875 9018 3872 9021
3871 9021 3868 9019 3865 9018 3862 9018
TIME...MOT...LOC 2339Z 261DEG 23KT 3867 9047
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
Pfahler840
WWUS53 KLSX 012345
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
645 PM CDT Mon Apr 1 2024
MOC189-510-020015-
/O.CON.KLSX.TO.W.0018.000000T0000Z-240402T0015Z/
St. Louis City MO-St. Louis MO-
645 PM CDT Mon Apr 1 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR CENTRAL
ST. LOUIS COUNTY AND NORTHERN ST. LOUIS CITY...
At 645 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Creve Coeur, moving east at 20 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
University City, Maryland Heights, Creve Coeur, Overland, St. Ann,
Bridgeton, Ladue, Olivette, St. John, and Woodson Terrace around
650 PM CDT.
Clayton, Berkeley, Bel-Ridge, Lambert-St. Louis International
Airport, Pagedale, Hanley Hills, Bel-Nor, Greendale, Vinita
Terrace, and Bellerive around 655 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Ferguson, Jennings, Normandy, Northwoods, Hillsdale, Cool Valley,
Kinloch, Wellston, Velda City, Velda Village Hills, St. Louis,
Dellwood, Pine Lawn, Country Club Hills, Flordell Hills, Uplands
Park, Bellefontaine Neighbors, Moline Acres, Castle Point, Riverview,
Spanish Lake and Glasgow Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3865 9048 3872 9049 3879 9014 3877 9017
3875 9018 3872 9021 3871 9021 3868 9019
3866 9018
TIME...MOT...LOC 2345Z 256DEG 16KT 3868 9045
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
Pfahler557
WWUS53 KLSX 012358 RRA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
658 PM CDT Mon Apr 1 2024
MOC189-510-020015-
/O.CON.KLSX.TO.W.0018.000000T0000Z-240402T0015Z/
St. Louis City MO-St. Louis MO-
658 PM CDT Mon Apr 1 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR EAST
CENTRAL ST. LOUIS COUNTY AND NORTHEASTERN ST. LOUIS CITY...
At 658 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Flordell Hills, moving east at 35 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
St. Louis, Bellefontaine Neighbors, Riverview, Spanish Lake, and
Glasgow Village around 705 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3867 9034 3875 9036 3879 9014 3877 9017
3875 9018 3872 9021 3871 9021 3869 9019
3868 9019
TIME...MOT...LOC 2358Z 260DEG 29KT 3871 9026
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
Pfahler139
WWUS53 KLSX 020010
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
710 PM CDT Mon Apr 1 2024
MOC189-510-020020-
/O.EXP.KLSX.TO.W.0018.000000T0000Z-240402T0015Z/
St. Louis City MO-St. Louis MO-
710 PM CDT Mon Apr 1 2024
...THE TORNADO WARNING FOR EAST CENTRAL ST. LOUIS COUNTY AND
NORTHEASTERN ST. LOUIS CITY WILL EXPIRE AT 715 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until midnight CDT for southwestern
Illinois...and east central Missouri.
Remember, a Severe Thunderstorm Warning still remains in effect for
northeastern St. Louis County and northern St. Louis City until 715
PM.
&&
LAT...LON 3867 9034 3875 9036 3879 9014 3877 9017
3875 9018 3872 9021 3871 9021 3869 9019
3868 9019
TIME...MOT...LOC 0010Z 261DEG 25KT 3872 9016
$$
PfahlerThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 45 min |
| Apr 1, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Moniteau | 45 min |
| Apr 1, 5:49 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 56 min |
| Apr 1, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 63 min |
| Apr 1, 6:16 PM CDT | Tornado Warning | LSX | Cole, Osage | 30 min |
| Apr 1, 6:26 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 49 min |
| Apr 1, 6:43 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Montgomery, Warren | 62 min |
Nearby
Tornado Warnings in Missouri, 2024Every tornado warning in 2024Tornadoes in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.