Alert archive / Missouri / Tornado Warnings in 2026

Tornado Warning 80, NWS St. Louis, MO

August 19, 2026Reynolds County, Missouri

NWS St. Louis, MO issued this tornado warning at Aug 19, 2026, 9:46 PM CDT for Reynolds County, Missouri. It was in force for 44 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
Aug 19, 2026, 9:46 PM CDT (02:46 UTC)
Expired
Aug 19, 2026, 10:30 PM CDT
In force
44 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Reynolds County, MO

The radar

The St Louis radar (KLSX), 176 km from the middle of the area, began a volume at 02:49 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.

IssuedProductOfficeLasted
Aug 19, 9:42 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.8 hours before the alert went out and 258 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2026-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2738 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2026-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2738 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1575 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.8
Supercell composite
13.7

Open this sounding in Storm Lab

The text

As transmitted.

273 
WFUS53 KLSX 200246
TORLSX
MOC179-200330-
/O.NEW.KLSX.TO.W.0080.260820T0246Z-260820T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
946 PM CDT Wed Aug 19 2026

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Southeastern Reynolds County in southeastern Missouri...

* Until 1030 PM CDT.

* At 946 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles southwest of Ellington, or 39 miles southwest
  of Ironton, moving east at 30 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.

* Locations impacted include...
  Garwood.

This includes the following State Parks...
Clearwater Lake Recreational Area.

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.

Tornadoes are difficult to observe at night. Take cover now!

&&

LAT...LON 3716 9103 3717 9074 3716 9075 3716 9076
      3714 9076 3714 9078 3705 9078 3705 9096
      3710 9096 3710 9102 3714 9102 3714 9104
      3715 9103
TIME...MOT...LOC 0246Z 269DEG 25KT 3713 9104

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Elmore
3 follow-up statements
690 
WWUS53 KLSX 200303
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1003 PM CDT Wed Aug 19 2026

MOC179-200330-
/O.CON.KLSX.TO.W.0080.000000T0000Z-260820T0330Z/
Reynolds MO-
1003 PM CDT Wed Aug 19 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHEASTERN REYNOLDS COUNTY...

At 1003 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Garwood, or 36 miles southwest of Ironton, moving
east at 40 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.

Locations impacted include...
  Garwood.

This includes the following State Parks...
Clearwater Lake Recreational Area.

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.

Tornadoes are difficult to observe at night. Take cover now!

&&

LAT...LON 3716 9103 3717 9074 3716 9075 3716 9076
      3714 9076 3714 9078 3705 9078 3705 9096
      3710 9096 3710 9102 3714 9102 3714 9104
      3715 9103
TIME...MOT...LOC 0246Z 271DEG 32KT 3713 9110

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Elmore
687 
WWUS53 KLSX 200309
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1009 PM CDT Wed Aug 19 2026

MOC179-200330-
/O.CON.KLSX.TO.W.0080.000000T0000Z-260820T0330Z/
Reynolds MO-
1009 PM CDT Wed Aug 19 2026

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR SOUTH
CENTRAL REYNOLDS COUNTY...

At 1009 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles west of Garwood, or 44 miles southwest of
Ironton, moving southeast at 35 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.

Locations impacted include...
  Mainly rural areas of South Central Reynolds County.

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.

Tornadoes are difficult to observe at night. Take cover now!

&&

LAT...LON 3715 9103 3711 9087 3705 9092 3705 9096
      3710 9096 3710 9102 3714 9102 3714 9104
TIME...MOT...LOC 0303Z 293DEG 31KT 3709 9114

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Elmore
643 
WWUS53 KLSX 200327
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1027 PM CDT Wed Aug 19 2026

MOC179-200337-
/O.EXP.KLSX.TO.W.0080.000000T0000Z-260820T0330Z/
Reynolds MO-
1027 PM CDT Wed Aug 19 2026

...TORNADO WARNING WILL EXPIRE AT 1030 PM CDT FOR SOUTH CENTRAL
REYNOLDS COUNTY...

The tornado threat has diminished for southern Reynolds County and
the Tornado Warning has been allowed to expire. However, large hail
and damaging winds remain likely and a Severe Thunderstorm Warning
remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for a
portion of southeast Missouri.

&&

LAT...LON 3715 9103 3711 9087 3705 9092 3705 9096
      3710 9096 3710 9102 3714 9102 3714 9104
TIME...MOT...LOC 0309Z 293DEG 31KT 3707 9107

$$

Elmore

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 19, 9:34 PM CDTSevere Thunderstorm WarningLSXMadison26 min
Aug 19, 10:25 PM CDTSevere Thunderstorm WarningLSXReynolds21 min
Aug 19, 11:19 PM CDTAreal Flood AdvisoryLSXReynolds3 hr
Aug 20, 12:48 AM CDTAreal Flood AdvisoryLSXIron, Madison2 hr

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.