Severe Thunderstorm Warning 153, NWS St. Louis, MO

169 
WWUS53 KLSX 311904
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
204 PM CDT Sun May 31 2026

MOC093-179-221-311930-
/O.CON.KLSX.SV.W.0153.000000T0000Z-260531T1930Z/
Iron MO-Reynolds MO-Washington MO-
204 PM CDT Sun May 31 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR
SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI AND IRON AND
NORTHEASTERN REYNOLDS COUNTIES IN SOUTHEASTERN MISSOURI...

At 204 PM CDT, a severe thunderstorm was located 8 miles west of
Belleview, or 15 miles west of Ironton, moving east at 30 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...
  Courtois, Bixby, Oates, Black, Belgrade, Caledonia, Belleview,
  Irondale, Pilot Knob, Ironton, Granite, Arcadia, Hogan and Glover.

This includes the following State Parks...
Johnsons Shut-Ins State Park, Fort Davidson Historic Site, Elephant
Rocks State Park and Taum Sauk Mountain 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.

&&

LAT...LON 3750 9112 3774 9110 3788 9110 3786 9064
      3776 9064 3764 9065 3764 9053 3760 9054
      3760 9055 3746 9055
TIME...MOT...LOC 1848Z 282DEG 24KT 3768 9104

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Delia

139 
WWUS53 KLSX 311915
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
215 PM CDT Sun May 31 2026

MOC093-179-221-311930-
/O.CON.KLSX.SV.W.0153.000000T0000Z-260531T1930Z/
Iron MO-Reynolds MO-Washington MO-
215 PM CDT Sun May 31 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR
SOUTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI AND NORTHERN
IRON AND NORTHEASTERN REYNOLDS COUNTIES IN SOUTHEASTERN MISSOURI...

At 215 PM CDT, a severe thunderstorm was located near Belleview, or
10 miles west of Ironton, moving east at 30 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...
  Black, Belgrade, Caledonia, Belleview, Irondale, Pilot Knob,
  Ironton, Granite, Arcadia, Hogan and Glover.

This includes the following State Parks...
Johnsons Shut-Ins State Park, Fort Davidson Historic Site, Elephant
Rocks State Park and Taum Sauk Mountain 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.

&&

LAT...LON 3750 9107 3787 9093 3786 9064 3775 9064
      3768 9065 3764 9065 3764 9053 3762 9054
      3760 9054 3760 9055 3746 9055
TIME...MOT...LOC 1904Z 282DEG 24KT 3766 9090

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Delia

771 
WWUS53 KLSX 311933
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
233 PM CDT Sun May 31 2026

MOC093-179-221-311943-
/O.EXP.KLSX.SV.W.0153.000000T0000Z-260531T1930Z/
Iron MO-Reynolds MO-Washington MO-
233 PM CDT Sun May 31 2026

...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR SOUTHEASTERN
WASHINGTON COUNTY IN EAST CENTRAL MISSOURI AND NORTHERN IRON AND
NORTHEASTERN REYNOLDS COUNTIES IN SOUTHEASTERN MISSOURI...

The storm which prompted the warning has moved out of Washington and
Reynolds Counties. Therefore, the warning has been allowed to expire.
However a severe thunderstorm warning has been reissued for portions
of eastern Iron County where the storm is still active.

&&

LAT...LON 3750 9107 3787 9093 3786 9064 3775 9064
      3768 9065 3764 9065 3764 9053 3762 9054
      3760 9054 3760 9055 3746 9055
TIME...MOT...LOC 1915Z 282DEG 24KT 3764 9081

$$

Delia

Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1229 PM CDT Sun May 31 2026

.KEY MESSAGES...

- There will be several chances of showers and thunderstorms through
  tomorrow with a low chance of severe thunderstorms capable of
  producing large hail and damaging winds.

- Dry weather is forecast Tuesday through Thursday along with near
  normal temperatures.

&&

.SHORT TERM...  (Through Late Monday Afternoon)
Issued at 418 AM CDT Sun May 31 2026

Patchy fog has developed over parts of the area like yesterday
morning with varying visibilities.  With light winds and yesterday's
rainfall, visibilities have fallen as low as 1/4 mile so far at SUS
and CPS, but have since climbed back up to 10 miles.  With the
clouds overhead and the relatively short night, I suspect any dense
fog will stay patchy the rest of the night.

There will the potential for several rounds of showers and
thunderstorms to move across parts of the CWA through Monday.  There
remains a strong CAPE gradient that is expected to remain in place
from west to east in addition to the persistent low level
convergence axis.  Showers and thunderstorms currently over western
Missouri are slowly moving east, and may move into central Missouri
early this morning.  An upper trough over the central Plains will
lift northeast this morning and supply decent ascent over the area
this afternoon.  The CAMS are showing an increase in convection over
the area by mid afternoon into this evening, though they are
inconsistent with their timing and location.  This is likely because
there will be an upper ridge building over Missouri and Illinois
today causing weak steering currents. The CAMS are also showing
some redevelopment of the thunderstorms over northern Missouri
this evening that will move into the CWA overnight. Both of these
rounds will have some potential of isolated severe thunderstorms
in the SPC marginal risk with up to 1" hail and 60 mph winds,
though the coverages an severity of storms will be dependent on
the previous rounds of storms. There will also be the potential
for heavy rainfall to produce localized flooding, particularly
over central and southeast Missouri where PWATS will be around
1.8" with warm cloud depths over 10k feet.

The CAMS are showing the second round of convection exiting the
CWA by 12Z on Monday. Both the RAP/GFS is showing a front
lingering back across central and southeast Missouri during the
day with sufficient CAP/shear to bring the risk of an isolated
strong to severe thunderstorm.

Britt

&&

.LONG TERM...  (Monday Night through Saturday)
Issued at 418 AM CDT Sun May 31 2026

Model guidance is consistent showing an upper high moving south
across Midwest Tuesday into Thursday resulting in dry weather across
the CWA during this period.  The chance for showers and
thunderstorms will return beginning on Thursday night and continues
into Saturday when moisture return will increase ahead of upper low
over the Plains.  The LREF is showing 40-60% of its members
producing rain over the CWA by Saturday.

WHile temperatures may cool down to around 80 on Tuesday and
Wednesday, highs are forecast to be mainly in 80s this week as they
climb back into the upper 80s by Friday and Saturday.

Britt

&&

.AVIATION...  (For the 18z TAFs through 18z Monday Afternoon)
Issued at 1224 PM CDT Sun May 31 2026

An area of showers/weak thunderstorms to the west of the metro
terminals is expected to slide south and weaken with time/eastward
extent. Much of the afternoon/early evening may tend to be dry
across the area, but more widespread showers and thunderstorms are
expected overnight tonight into the early morning hours on Monday.
While confidence in details (timing, longevity, areas impacted) is
not very high, it does look like KCOU/KJEF have the best chance of
seeing the greatest impacts. This is where the storms may be a bit
stronger, so expect IFR visibilities in heavier cores and possibly
some small hail/gusty winds as well. The thunderstorms should move
out from west/northwest to east/southeast with time, leaving
dry conditions behind it for much of the area Monday morning.

Gosselin

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...None.
IL...None.
&&

WFO LSX

Preliminary Local Storm Report
National Weather Service St Louis MO
127 PM CDT Sun May 31 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0123 PM     Hail             1 SSW Latty             37.97N 90.90W
05/31/2026  M0.50 Inch       Washington         MO   Trained Spotter

&&

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