Alert archive / Missouri / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 13, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 10, 2026, 10:14 PM CDT for Lewis County, Marion County, Missouri. It was in force for 34 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
- Mar 10, 2026, 10:14 PM CDT (03:14 UTC)
- Expired
- Mar 10, 2026, 10:48 PM CDT
- In force
- 34 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lewis County, MO, Marion County, MO
The radar
The St Louis radar (KLSX), 163 km from the middle of the area, began a volume at 03:15 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 |
|---|---|---|---|
| Mar 10, 5:57 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 3.2 hours before the alert went out and 202 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
- 343 J/kg
- Mixed-layer CIN
- -359 J/kg
- Mixed-layer LCL
- 771 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 529 m²/s²
- 0-3 km storm-relative helicity
- 725 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 25.6
The text
As transmitted.
109
WUUS53 KLSX 110314
SVRLSX
MOC111-127-110400-
/O.NEW.KLSX.SV.W.0013.260311T0314Z-260311T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1014 PM CDT Tue Mar 10 2026
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Central Lewis County in northeastern Missouri...
Marion County in northeastern Missouri...
* Until 1100 PM CDT.
* At 1014 PM CDT, a severe thunderstorm was located 6 miles north of
Emden, or 15 miles northeast of Shelbina, moving northeast at 50
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Warren, Philadelphia, Ewing, Palmyra, Monticello, Maywood, Taylor,
La Grange and Canton.
This includes the following State Parks...
Wakonda State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
A Tornado Watch remains in effect until 1200 AM CDT Wednesday for a
portion of northeast Missouri.
&&
LAT...LON 3995 9184 3995 9176 4020 9180 4025 9161
4025 9150 4024 9151 4013 9151 4006 9149
4004 9149 3993 9142 3988 9145 3984 9143
3980 9137 3978 9137 3969 9185
TIME...MOT...LOC 0313Z 245DEG 42KT 3988 9190
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Elmore4 follow-up statements
361
WWUS53 KLSX 110326
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1026 PM CDT Tue Mar 10 2026
MOC111-127-110400-
/O.CON.KLSX.SV.W.0013.000000T0000Z-260311T0400Z/
Lewis MO-Marion MO-
1026 PM CDT Tue Mar 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 11 PM CDT FOR
SOUTHEASTERN LEWIS AND MARION COUNTIES IN NORTHEASTERN MISSOURI...
At 1026 PM CDT, a severe thunderstorm was located near Ewing, or 14
miles northwest of Palmyra, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Warren, Philadelphia, Ewing, Palmyra, Maywood, Taylor, La Grange
and Canton.
This includes the following State Parks...
Wakonda State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
A Tornado Watch remains in effect until 1200 AM CDT Wednesday for a
portion of northeast Missouri.
&&
LAT...LON 3995 9184 3995 9176 4007 9177 4013 9167
4019 9151 4013 9151 4006 9149 4004 9149
3998 9146 3993 9142 3988 9145 3985 9144
3980 9137 3978 9137 3972 9184
TIME...MOT...LOC 0314Z 245DEG 42KT 3988 9189
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Elmore117
WWUS53 KLSX 110332
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1032 PM CDT Tue Mar 10 2026
MOC111-127-110400-
/O.CON.KLSX.SV.W.0013.000000T0000Z-260311T0400Z/
Lewis MO-Marion MO-
1032 PM CDT Tue Mar 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 11 PM CDT FOR
SOUTHEASTERN LEWIS AND NORTHERN MARION COUNTIES IN NORTHEASTERN
MISSOURI...
At 1032 PM CDT, a severe thunderstorm was located over Maywood, or 12
miles southwest of Canton, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Philadelphia, Ewing, Palmyra, Maywood, Taylor, La Grange and
Canton.
This includes the following State Parks...
Wakonda State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
&&
LAT...LON 3977 9182 3995 9176 4007 9177 4013 9167
4019 9151 4013 9151 4006 9149 4004 9149
3998 9146 3993 9142 3988 9145 3985 9144
3980 9137 3978 9137
TIME...MOT...LOC 0326Z 245DEG 42KT 3994 9172
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Elmore337
WWUS53 KLSX 110341
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1041 PM CDT Tue Mar 10 2026
MOC111-127-110400-
/O.CON.KLSX.SV.W.0013.000000T0000Z-260311T0400Z/
Lewis MO-Marion MO-
1041 PM CDT Tue Mar 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 11 PM CDT FOR
SOUTHEASTERN LEWIS AND NORTH CENTRAL MARION COUNTIES IN NORTHEASTERN
MISSOURI...
At 1041 PM CDT, a severe thunderstorm was located 6 miles south of La
Grange, or 5 miles west of Quincy, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Maywood, Taylor and La Grange.
This includes the following State Parks...
Wakonda State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
A Tornado Watch remains in effect until 1200 AM CDT for a portion of
northeast Missouri.
&&
LAT...LON 3995 9169 3998 9170 4006 9149 4003 9149
4000 9147 3998 9146 3995 9144 3993 9142
3990 9144 3989 9144 3988 9145 3985 9144
3982 9166
TIME...MOT...LOC 0332Z 246DEG 52KT 3991 9164
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Elmore684
WWUS53 KLSX 110348
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1048 PM CDT Tue Mar 10 2026
MOC111-127-110358-
/O.CAN.KLSX.SV.W.0013.000000T0000Z-260311T0400Z/
Lewis MO-Marion MO-
1048 PM CDT Tue Mar 10 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN LEWIS
AND NORTH CENTRAL MARION COUNTIES IN NORTHEASTERN MISSOURI...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, small hail and
gusty winds are still possible with this thunderstorm.
A Tornado Watch remains in effect until 1200 AM CDT for a portion of
northeast Missouri.
&&
LAT...LON 3995 9169 3998 9170 4006 9149 4003 9149
4000 9147 3998 9146 3995 9144 3993 9142
3990 9144 3989 9144 3988 9145 3985 9144
3982 9166
TIME...MOT...LOC 0341Z 247DEG 52KT 3997 9147
$$
ElmoreThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 10, 9:12 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Lewis, Shelby | 27 min |
| Mar 10, 9:44 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 31 min |
| Mar 10, 9:47 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Lewis, Shelby | 38 min |
| Mar 11, 2:18 AM CDT | Tornado Warning | LSX | Montgomery | 12 min |
| Mar 11, 2:26 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Warren | 49 min |
| Mar 11, 2:48 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 27 min |
| Mar 11, 3:17 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Saint Louis, City of Saint Louis | 43 min |
| Mar 11, 4:35 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 40 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2026Every severe thunderstorm warning 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.