Alert archive / Missouri / Tornado Warnings in 2026
Tornado Warning 37, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 2026, 2:49 PM CDT for Saint Charles County, Warren County, Missouri. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2026, 2:49 PM CDT (19:49 UTC)
- Expired
- Apr 27, 2026, 3:30 PM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Saint Charles County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 20 km from the middle of the area, began a volume at 19:48 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.
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 27, 12:50 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 237 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
- 1053 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
823
WFUS53 KLSX 271949
TORLSX
MOC183-219-272030-
/O.NEW.KLSX.TO.W.0037.260427T1949Z-260427T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
249 PM CDT Mon Apr 27 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Saint Charles County in east central Missouri...
Southeastern Warren County in east central Missouri...
* Until 330 PM CDT.
* At 249 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Innsbrook, or 6 miles south of Wright City, moving
northeast at 50 mph.
HAZARD...Tornado and quarter 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 tornado will be near...
Innsbrook around 250 PM CDT.
Wright City and New Melle around 255 PM CDT.
Wentzville, Josephville, Lake St. Louis and Dardenne Prairie around
305 PM CDT.
Other locations impacted by the tornado include Foristell, Flint Hill
and Kampville.
This includes Interstate 70 in Missouri between exits 199 and 228.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 3864 9113 3875 9113 3887 9101 3887 9096
3889 9096 3888 9082 3892 9079 3893 9073
3892 9073 3891 9072 3892 9071 3892 9068
3893 9070 3893 9067 3889 9063 3887 9058
3887 9055 3879 9048
TIME...MOT...LOC 1949Z 246DEG 43KT 3874 9103
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Jaja5 follow-up statements
109
WWUS53 KLSX 271958
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
258 PM CDT Mon Apr 27 2026
MOC219-272008-
/O.CAN.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Warren MO-
258 PM CDT Mon Apr 27 2026
...TORNADO WARNING IS CANCELLED FOR SOUTHEASTERN WARREN COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 PM CDT Monday for a
portion of east central Missouri.
&&
LAT...LON 3889 9096 3888 9081 3892 9079 3893 9073
3892 9073 3891 9072 3892 9071 3892 9068
3893 9070 3893 9067 3889 9063 3887 9058
3887 9055 3879 9048 3868 9096
TIME...MOT...LOC 1949Z 246DEG 43KT 3874 9103
$$
MOC183-272030-
/O.CON.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Saint Charles MO-
258 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
NORTHWESTERN SAINT CHARLES COUNTY...
At 258 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wentzville, moving northeast at 50 mph.
HAZARD...Tornado and quarter 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 tornado will be near...
New Melle around 300 PM CDT.
Wentzville, Josephville, Lake St. Louis and Dardenne Prairie around
305 PM CDT.
O'Fallon, St. Paul and Cottleville around 310 PM CDT.
Other locations impacted by the tornado include Foristell, Flint Hill
and Kampville.
This includes Interstate 70 in Missouri between exits 203 and 227.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 3889 9096 3888 9081 3892 9079 3893 9073
3892 9073 3891 9072 3892 9071 3892 9068
3893 9070 3893 9067 3889 9063 3887 9058
3887 9055 3879 9048 3868 9096
TIME...MOT...LOC 1949Z 246DEG 43KT 3874 9103
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Jaja773
WWUS53 KLSX 272007
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
307 PM CDT Mon Apr 27 2026
MOC183-272030-
/O.CON.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Saint Charles MO-
307 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
NORTHWESTERN SAINT CHARLES COUNTY...
At 307 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Josephville, or over St. Paul, moving northeast at
50 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
O'Fallon, St. Paul, Josephville, Lake St. Louis, Wentzville,
Dardenne Prairie and Cottleville around 310 PM CDT.
St. Peters around 315 PM CDT.
St. Charles around 320 PM CDT.
Other locations impacted by the tornado include Flint Hill and
Kampville.
This includes Interstate 70 in Missouri between exits 208 and 227.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3893 9073 3892 9073 3891 9072 3892 9071
3892 9068 3893 9070 3893 9067 3889 9063
3887 9058 3887 9055 3879 9048 3874 9071
3872 9077 3870 9089 3889 9092 3888 9081
3892 9079 3892 9076
TIME...MOT...LOC 1958Z 246DEG 43KT 3878 9090
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Jaja920
WWUS53 KLSX 272017
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
317 PM CDT Mon Apr 27 2026
MOC183-272030-
/O.CON.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Saint Charles MO-
317 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
NORTHWESTERN SAINT CHARLES COUNTY...
At 317 PM CDT, a severe thunderstorm capable of producing a tornado
was located near St. Peters, moving east at 45 mph.
HAZARD...Tornado and quarter 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 tornado will be near...
St. Peters, O'Fallon, Cottleville, St. Paul, Dardenne Prairie and
Lake St. Louis around 320 PM CDT.
St. Charles around 325 PM CDT.
Other locations impacted by the tornado include Kampville.
This includes Interstate 70 in Missouri between exits 216 and 227.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 3893 9073 3892 9073 3891 9072 3891 9071
3892 9072 3892 9068 3893 9070 3893 9067
3889 9063 3887 9058 3887 9055 3879 9048
3874 9071 3888 9081 3892 9079 3892 9076
TIME...MOT...LOC 2007Z 250DEG 39KT 3879 9078
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Elmore572
WWUS53 KLSX 272021
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
321 PM CDT Mon Apr 27 2026
MOC183-272030-
/O.CON.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Saint Charles MO-
321 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR NORTH
CENTRAL SAINT CHARLES COUNTY...
At 321 PM CDT, a severe thunderstorm capable of producing a tornado
was located near St. Peters, moving east at 50 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
St. Charles, St. Peters, O'Fallon and Cottleville around 325 PM
CDT.
Other locations impacted by the tornado include Kampville.
This includes Interstate 70 in Missouri between exits 217 and 227.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3888 9075 3890 9070 3891 9067 3892 9066
3889 9063 3887 9058 3887 9055 3879 9048
3877 9059 3875 9067
TIME...MOT...LOC 2017Z 251DEG 39KT 3883 9065
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Elmore968
WWUS53 KLSX 272026
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
326 PM CDT Mon Apr 27 2026
MOC183-272036-
/O.EXP.KLSX.TO.W.0037.000000T0000Z-260427T2030Z/
Saint Charles MO-
326 PM CDT Mon Apr 27 2026
...TORNADO WARNING WILL EXPIRE AT 330 PM CDT FOR NORTH CENTRAL SAINT
CHARLES COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. A Tornado Warning
still remains in effect for eastern Saint Charles County|.
A Tornado Watch remains in effect until 900 PM CDT for a portion of
east central Missouri.
&&
LAT...LON 3888 9075 3890 9070 3891 9067 3892 9066
3889 9063 3887 9058 3887 9055 3879 9048
3877 9059 3875 9067
TIME...MOT...LOC 2021Z 251DEG 39KT 3884 9060
$$
ElmoreThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:43 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 30 min |
| Apr 26, 10:08 PM CDT | Tornado Warning | LSX | Osage | 13 min |
| Apr 27, 1:06 AM CDT | Severe Thunderstorm Warning | LSX | Crawford | 39 min |
| Apr 27, 2:10 AM CDT | Areal Flood Advisory | LSX | Crawford | 3 hr |
| Apr 27, 2:44 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 31 min |
| Apr 27, 3:08 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois, Washington | 52 min |
| Apr 27, 3:36 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 39 min |
| Apr 27, 3:41 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 49 min |
| Apr 27, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 24 min |
| Apr 27, 6:52 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 38 min |
| Apr 27, 7:35 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Monroe, Shelby | 55 min |
| Apr 27, 7:54 AM CDT | Tornado Warning | LSX | Monroe, Ralls | 51 min |
| Apr 27, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Marion, Pike, Ralls | 65 min |
| Apr 27, 8:24 AM CDT | Tornado Warning | LSX | Pike, Ralls | 51 min |
| Apr 27, 10:09 AM CDT | River Flood Warning | LSX | Osage | 24 hr |
| Apr 27, 10:41 AM CDT | Flash Flood Warning | LSX | Boone, Cole, Moniteau | 3 hr |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 10 more | 10 hr |
| Apr 27, 11:48 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau, Montgomery and 1 more | 3 hr |
| Apr 27, 12:09 PM CDT | Areal Flood Advisory | LSX | Lincoln, Pike, Warren | 3 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 48 min |
| Apr 27, 1:25 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 37 min |
| Apr 27, 1:51 PM CDT | Areal Flood Advisory | LSX | Montgomery, Warren | 3 hr |
| Apr 27, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | City of Saint Louis | 27 min |
| Apr 27, 2:05 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike, Warren | 40 min |
| Apr 27, 2:13 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 3 hr |
| Apr 27, 2:39 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 51 min |
| Apr 27, 2:42 PM CDT | River Flood Warning | LSX | Monroe | 20 hr |
| Apr 27, 2:54 PM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 6 days |
| Apr 27, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 48 min |
| Apr 27, 3:05 PM CDT | River Flood Warning | LSX | Perry, Sainte Genevieve | 8 days |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 46 min |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 41 min |
| Apr 27, 3:25 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway | 42 min |
| Apr 27, 3:37 PM CDT | Flash Flood Warning | LSX | Boone | 5 hr |
| Apr 27, 3:39 PM CDT | River Flood Warning | LSX | Lewis | 11 hr |
| Apr 27, 3:41 PM CDT | River Flood Warning | LSX | Lincoln | 24 hr |
| Apr 27, 3:41 PM CDT | Tornado Warning | LSX | Audrain, Callaway | 49 min |
| Apr 27, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 62 min |
| Apr 27, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 44 min |
| Apr 27, 3:46 PM CDT | Tornado Warning | LSX | Boone | 14 min |
| Apr 27, 3:53 PM CDT | River Flood Warning | LSX | Lincoln | 4 days |
| Apr 27, 3:59 PM CDT | River Flood Warning | LSX | Crawford, Washington | 18 hr |
| Apr 27, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Moniteau | 60 min |
| Apr 27, 4:07 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 53 min |
| Apr 27, 4:09 PM CDT | Tornado Warning | LSX | Audrain, Montgomery, Pike, Ralls | 51 min |
| Apr 27, 4:13 PM CDT | Flash Flood Warning | LSX | Audrain | 5 hr |
| Apr 27, 4:29 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 46 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | Marion | 29 min |
| Apr 27, 4:35 PM CDT | Flash Flood Warning | LSX | Monroe | 5 hr |
| Apr 27, 4:46 PM CDT | Tornado Warning | LSX | Pike | 44 min |
| Apr 27, 4:52 PM CDT | Flash Flood Warning | LSX | Marion, Ralls | 4 hr |
| Apr 27, 4:54 PM CDT | Tornado Warning | LSX | Audrain, Pike | 21 min |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Callaway, Osage | 4 days |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 3 days |
| Apr 27, 4:57 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike | 63 min |
| Apr 27, 5:00 PM CDT | Tornado Warning | LSX | Pike | 30 min |
| Apr 27, 5:04 PM CDT | River Flood Warning | LSX | Marion | 22 hr |
| Apr 27, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 19 min |
| Apr 27, 5:14 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 61 min |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | Pike, Ralls | 3 hr |
| Apr 27, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 39 min |
| Apr 27, 5:32 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 43 min |
| Apr 27, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 58 min |
| Apr 27, 5:55 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 50 min |
| Apr 27, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 48 min |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 46 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 36 min |
| Apr 27, 6:26 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 64 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 47 min |
| Apr 27, 6:31 PM CDT | Tornado Warning | LSX | Franklin, Jefferson, Washington | 59 min |
| Apr 27, 6:40 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 48 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 32 min |
| Apr 27, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 45 min |
Nearby
Tornado Warnings in Missouri, 2026Every tornado warning in 2026Tornadoes in 2026
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; radar from the NEXRAD Level II archive.