Alert archive / Missouri / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 162, NWS St. Louis, MO

June 1, 20265 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 1, 2026, 4:25 AM CDT for 5 counties in Missouri. It was in force for 50 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
Jun 1, 2026, 4:25 AM CDT (09:25 UTC)
Expired
Jun 1, 2026, 5:15 AM CDT
In force
50 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Callaway County, MO, Cole County, MO, Crawford County, MO, Gasconade County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 100 km from the middle of the area, began a volume at 09:24 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 1, 3:34 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 9.4 hours before the alert went out and 245 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 2026-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2368 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2026-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
2368 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1403 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.1

Open this sounding in Storm Lab

The text

As transmitted.

319 
WUUS53 KLSX 010925
SVRLSX
MOC027-051-055-073-151-011015-
/O.NEW.KLSX.SV.W.0162.260601T0925Z-260601T1015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
425 AM CDT Mon Jun 1 2026

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Southwestern Callaway County in central Missouri...
  Southeastern Cole County in central Missouri...
  Osage County in central Missouri...
  Northwestern Crawford County in east central Missouri...
  Gasconade County in east central Missouri...

* Until 515 AM CDT.

* At 425 AM CDT, severe thunderstorms were located along a line from
  near Chamois to near Freeburg, or along a line from 12 miles north
  of Linn to 15 miles southwest of Linn, 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...
  Jefferson City, Wardsville, Holts Summit, Lake Mykee Town, Lake
  Mykee, Taos, New Bloomfield, Meta, Westphalia, Argyle,
  Frankenstein, Linn, Rich Fountain, Freeburg, Mount Sterling, Bland,
  Owensville, Drake and Rosebud.

This includes the following State Parks...
Clarks Hill/Norton Historic Site and Jefferson Landing Historic Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

&&

LAT...LON 3880 9211 3851 9164 3855 9137 3823 9138
      3810 9153 3815 9153 3815 9164 3829 9164
      3829 9219 3857 9226
TIME...MOT...LOC 0924Z 286DEG 26KT 3865 9185 3843 9186 3829 9198

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

$$

BAH
6 follow-up statements
143 
WWUS53 KLSX 010937
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
437 AM CDT Mon Jun 1 2026

MOC027-051-055-073-151-011015-
/O.CON.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Callaway MO-Cole MO-Crawford MO-Gasconade MO-Osage MO-
437 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
SOUTHWESTERN CALLAWAY, SOUTHEASTERN COLE, OSAGE, NORTHWESTERN
CRAWFORD AND GASCONADE COUNTIES...

At 437 AM CDT, severe thunderstorms were located along a line from
near Chamois to near Freeburg, or along a line from 12 miles
northeast of Linn to 15 miles south of Linn, 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...
  Jefferson City, Wardsville, Holts Summit, Lake Mykee Town, Lake
  Mykee, Taos, New Bloomfield, Meta, Westphalia, Argyle,
  Frankenstein, Linn, Rich Fountain, Freeburg, Mount Sterling, Bland,
  Owensville, Drake and Rosebud.

This includes the following State Parks...
Clarks Hill/Norton Historic Site and Jefferson Landing Historic Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

&&

LAT...LON 3880 9211 3851 9164 3855 9137 3823 9138
      3810 9153 3815 9153 3815 9164 3829 9164
      3829 9219 3857 9226
TIME...MOT...LOC 0925Z 286DEG 26KT 3865 9184 3842 9185 3829 9197

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

$$

BAH
323 
WWUS53 KLSX 010946 RRA
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
446 AM CDT Mon Jun 1 2026

MOC027-051-055-073-151-011015-
/O.CON.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Callaway MO-Cole MO-Crawford MO-Gasconade MO-Osage MO-
446 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
SOUTH CENTRAL CALLAWAY, EAST CENTRAL COLE, OSAGE, NORTHWESTERN
CRAWFORD AND GASCONADE COUNTIES...

At 446 AM CDT, severe thunderstorms were located along a line from 8
miles southeast of Chamois to 9 miles southeast of Freeburg, or along
a line from 13 miles southwest of Hermann to 16 miles south of Linn,
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...
  Taos, Schubert, Osage City, Westphalia, Tebbetts, Bonnots Mill,
  Loose Creek, Koeltztown, Argyle, Frankenstein, Linn, Rich Fountain,
  Freeburg, Mount Sterling, Bland, Bay, Canaan, Owensville, Drake and
  Rosebud.

This includes the following State Parks...
Clarks Hill/Norton Historic Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

&&

LAT...LON 3847 9207 3852 9207 3875 9203 3851 9164
      3855 9137 3823 9138 3810 9153 3815 9153
      3815 9164 3829 9164 3829 9208
TIME...MOT...LOC 0937Z 286DEG 26KT 3862 9173 3840 9174 3826 9186

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

$$

BAH
403 
WWUS53 KLSX 010949
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
449 AM CDT Mon Jun 1 2026

MOC027-051-055-073-151-011015-
/O.CON.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Callaway MO-Cole MO-Crawford MO-Gasconade MO-Osage MO-
449 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
SOUTH CENTRAL CALLAWAY, EAST CENTRAL COLE, OSAGE, NORTHWESTERN
CRAWFORD AND GASCONADE COUNTIES...

At 449 AM CDT, severe thunderstorms were located along a line from 9
miles north of Mount Sterling to 8 miles southwest of Bland, or along
a line from 12 miles southwest of Hermann to 16 miles southwest of
Owensville, 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...
  Taos, Schubert, Osage City, Westphalia, Tebbetts, Bonnots Mill,
  Loose Creek, Koeltztown, Argyle, Frankenstein, Linn, Rich Fountain,
  Freeburg, Mount Sterling, Bland, Bay, Canaan, Owensville, Drake and
  Rosebud.

This includes the following State Parks...
Clarks Hill/Norton Historic Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

Continuous cloud to ground lightning is occurring with these storms.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3847 9207 3852 9207 3870 9194 3851 9164
      3855 9137 3823 9138 3810 9153 3815 9153
      3815 9164 3829 9164 3829 9208
TIME...MOT...LOC 0946Z 286DEG 26KT 3860 9165 3838 9166 3825 9178

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

$$

BAH
794 
WWUS53 KLSX 010954
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
454 AM CDT Mon Jun 1 2026

MOC027-051-011004-
/O.CAN.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Callaway MO-Cole MO-
454 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL
CALLAWAY AND EAST CENTRAL COLE COUNTIES...

The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled. However, gusty winds are
still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 900 AM CDT for a
portion of central Missouri.

&&

LAT...LON 3846 9200 3865 9188 3851 9164 3855 9137
      3823 9138 3810 9153 3815 9153 3815 9164
      3829 9164 3829 9201
TIME...MOT...LOC 0949Z 286DEG 26KT 3860 9162 3837 9163 3824 9176

$$


MOC055-073-151-011015-
/O.CON.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Crawford MO-Gasconade MO-Osage MO-
454 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
OSAGE, NORTHWESTERN CRAWFORD AND GASCONADE COUNTIES...

At 454 AM CDT, severe thunderstorms were located along a line from 6
miles west of Swiss to 7 miles southwest of Bland, or along a line
from 11 miles southwest of Hermann to 14 miles southwest of
Owensville, 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...
  Westphalia, Loose Creek, Frankenstein, Linn, Rich Fountain,
  Freeburg, Mount Sterling, Bland, Bay, Canaan, Owensville, Drake,
  Rosebud and Oak Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

Continuous cloud to ground lightning is occurring with these storms.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3846 9200 3865 9188 3851 9164 3855 9137
      3823 9138 3810 9153 3815 9153 3815 9164
      3829 9164 3829 9201
TIME...MOT...LOC 0949Z 286DEG 26KT 3860 9162 3837 9163 3824 9176

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

$$

BAH
004 
WWUS53 KLSX 011001
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
501 AM CDT Mon Jun 1 2026

MOC055-073-151-011015-
/O.CON.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Crawford MO-Gasconade MO-Osage MO-
501 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
SOUTHEASTERN OSAGE, NORTHWESTERN CRAWFORD AND GASCONADE COUNTIES...

At 501 AM CDT, severe thunderstorms were located along a line from
over Swiss to 6 miles south of Bland, or along a line from 10 miles
southwest of Hermann to 12 miles southwest of Owensville, moving east
at 30 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail
         damage to roofs, siding, windows, and vehicles. Expect wind
         damage to roofs, siding, and trees.

Locations impacted include...
  Mount Sterling, Bland, Bay, Canaan, Owensville, Drake, Rosebud and
  Oak Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

Continuous cloud to ground lightning is occurring with these storms.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3844 9178 3854 9170 3851 9164 3855 9137
      3823 9138 3810 9153 3815 9153 3815 9164
      3829 9164 3829 9179
TIME...MOT...LOC 0954Z 286DEG 26KT 3859 9158 3836 9159 3823 9171

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BAH
708 
WWUS53 KLSX 011012
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
512 AM CDT Mon Jun 1 2026

MOC055-073-151-011022-
/O.EXP.KLSX.SV.W.0162.000000T0000Z-260601T1015Z/
Crawford MO-Gasconade MO-Osage MO-
512 AM CDT Mon Jun 1 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 515 AM CDT FOR
SOUTHEASTERN OSAGE, NORTHWESTERN CRAWFORD AND GASCONADE COUNTIES...

The Severe Thunderstorm Warning that was previously in effect has
been reissued for Osage, Gasconade, and Crawford Counties and is in
effect until 545 AM CDT. Please refer to that bulletin for the latest
severe weather information.

A Severe Thunderstorm Watch remains in effect until 900 AM CDT for
portions of central and east central Missouri.

&&

LAT...LON 3844 9178 3854 9170 3851 9164 3855 9137
      3823 9138 3810 9153 3815 9153 3815 9164
      3829 9164 3829 9179
TIME...MOT...LOC 1001Z 286DEG 26KT 3857 9151 3835 9152 3822 9165

$$

BAH

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 3:58 AM CDT, 27 minutes earlier. Its key messages:

  • There will be two rounds of thunderstorms today, one early this morning and another over southeast Missouri and southwest Illinois this afternoon. Damaging winds, large hail, and heavy rainfall are possible with the strongest storms.
  • Dry weather is expected Tuesday through Thursday before the chances for showers and thunderstorms returns later this week into next weekend.
Area forecast discussion, Jun 1, 3:58 AM CDT, 27 minutes before
Area Forecast Discussion
National Weather Service Saint Louis MO
358 AM CDT Mon Jun 1 2026

.KEY MESSAGES...

- There will be two rounds of thunderstorms today, one early this morning
  and another over southeast Missouri and southwest Illinois this
  afternoon. Damaging winds, large hail, and heavy rainfall are
  possible with the strongest storms.

- Dry weather is expected Tuesday through Thursday before the
  chances for showers and thunderstorms returns later this week
  into next weekend.

&&

.SHORT TERM...  (Through Late Tuesday Afternoon)
Issued at 356 AM CDT Mon Jun 1 2026

Thunderstorms continue to show a gradual increase in intensity
and severity early this morning on the nose of a broad low level
jet across Missouri. There remains the potential for severe
thunderstorms the remainder of the morning as the thunderstorms
over central and western Missouri develop a cold pool which could
cause upscale growth across the CWA into a line segment bringing
some damaging winds and hail with the stronger storms given the
current 1000-2500 MLCAPES and effective shear of 30-40 knots. The
environment this morning also remains favorable for storm
producing heavy rainfall given the current PWATS and warm cloud
depths, particularly if they can train in any one location for
very long.

The CAMS including the HRRR have this first round of convection
moving through the CWA by around 9-10 am.  It will lay out of the
outflow boundary that will allow for additional shower and
thunderstorm development this afternoon.  RAP soundings from
Farmington this afternoon are showing MLCAPES between 2000-3000 J/kg
with around 30 knots of deep layer shear.  This should be sufficient
to to produce an isolated threat for damaging winds and large hail
into the early evening hours.

Drier weather is expected from mid evening on as the HREF is showing
the high building down the upper Midwest.  Highs today will recover
back into the 80s behind this morning's storms but should be a few
degrees cooler tomorrow with cold air advection.
Britt

&&

.LONG TERM...  (Tuesday Night through Sunday)
Issued at 356 AM CDT Mon Jun 1 2026

Dry weather is still expected Wednesday into Thursday as the upper
ridge moves south across the area.  As the ridge continues to move
to the south, the chance of showers and thunderstorms will return to
the area late this week into the weekend as moisture returns north
into the area ahead of western trough.  High temperatures are
expected to return into the mid to high 80s.

Britt

&&

.AVIATION...  (For the 06z TAFs through 06z Monday Night)
Issued at 1106 PM CDT Sun May 31 2026

The focus for impacts this period continues to be showers and
thunderstorms through this morning. The main corridor for these
showers and thunderstorms will stretch from near KCOU and KJEF
east-southeastward through KSUS, KSTL, and KCPS. KUIN has a low
chance of being grazed by this activity, though confidence in this
occurring is dwindling. Storms will be capable of heavy rainfall
that will reduce visibilities to MVFR and even IFR flight
categories, and there is a very low chance for gusty, erratic
winds and small hail at KCOU and KJEF. Showers and thunderstorms
will move south of the local terminals by mid morning, with
confidence high in VFR flight conditions through the remainder of
the day.

Elmore

&&

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

WFO LSX

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 2:59 AM CDTSevere Thunderstorm WarningLSXBoone, Moniteau46 min
Jun 1, 3:16 AM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Ralls44 min
Jun 1, 3:33 AM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway57 min
Jun 1, 3:39 AM CDTSevere Thunderstorm WarningLSXBoone, Moniteau51 min
Jun 1, 3:44 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Moniteau, Osage46 min
Jun 1, 3:53 AM CDTFlash Flood WarningLSXBoone5 hr
Jun 1, 4:22 AM CDTSevere Thunderstorm WarningLSXAudrain, Callaway, Gasconade, Montgomery, Osage, Warren38 min
Jun 1, 4:37 AM CDTFlash Flood WarningLSXLincoln, Pike5 hr
Jun 1, 4:53 AM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Lincoln, Montgomery, Osage, Saint Charles and 1 more52 min
Jun 1, 5:00 AM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Osage, Washington45 min
Jun 1, 5:25 AM CDTAreal Flood AdvisoryLSXOsage4 hr
Jun 1, 5:57 AM CDTAreal Flood AdvisoryLSXCity of Saint Louis3 hr
Jun 1, 6:31 AM CDTRiver Flood WarningLSXBoone3 hr
Jun 1, 7:45 AM CDTAreal Flood AdvisoryLSXSaint Charles, Saint Louis, City of Saint Louis3 hr
Jun 1, 9:00 AM CDTAreal Flood WarningLSXBoone3 hr

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.