Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 92, NWS St. Louis, MO

June 24, 2021Moniteau County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 24, 2021, 10:19 AM CDT for Moniteau 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
Jun 24, 2021, 10:19 AM CDT (15:19 UTC)
Expired
Jun 24, 2021, 11:00 AM CDT
In force
41 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Moniteau County, MO

The radar

The Pleasant Hill radar (KEAX), 146 km from the middle of the area, began a volume at 15:20 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 3.3 hours before the alert went out and 220 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 12:00Z on 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1495 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 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 297 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
1495 J/kg
Mixed-layer CIN
-285 J/kg
Mixed-layer LCL
736 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
297 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

As transmitted.

068 
WUUS53 KLSX 241519
SVRLSX
MOC135-241600-
/O.NEW.KLSX.SV.W.0092.210624T1519Z-210624T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1019 AM CDT Thu Jun 24 2021

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Moniteau County in central Missouri...

* Until 1100 AM CDT.

* At 1019 AM CDT, severe thunderstorms were located along a line
  extending from near Bunceton to Tipton to 8 miles north of Stover,
  moving east at 25 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.

* Severe thunderstorms will be near...
  Tipton around 1025 AM CDT.
  Clarksburg around 1035 AM CDT.

Other locations in the path of these severe thunderstorms include
California, Jamestown, McGirk and High Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3868 9284 3868 9262 3880 9256 3878 9240
      3876 9241 3873 9239 3846 9248 3843 9254
      3843 9262 3860 9284
TIME...MOT...LOC 1519Z 281DEG 23KT 3875 9275 3868 9279 3857 9299 

HAIL...1.00IN
WIND...60MPH
 
$$

Pfahler
2 follow-up statements
263 
WWUS53 KLSX 241548
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1048 AM CDT Thu Jun 24 2021

MOC135-241600-
/O.CON.KLSX.SV.W.0092.000000T0000Z-210624T1600Z/
Moniteau MO-
1048 AM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT
FOR MONITEAU COUNTY...

At 1048 AM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Clarksburg to California to 7 miles
south of Tipton, moving east at 30 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  California, McGirk and High Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3868 9284 3868 9262 3867 9241 3846 9248
      3843 9254 3843 9262 3860 9284
TIME...MOT...LOC 1548Z 277DEG 27KT 3869 9255 3863 9259 3854 9277 

HAIL...0.88IN
WIND...60MPH
 
$$

Pfahler
739 
WWUS53 KLSX 241600
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1100 AM CDT Thu Jun 24 2021

MOC135-241609-
/O.EXP.KLSX.SV.W.0092.000000T0000Z-210624T1600Z/
Moniteau MO-
1100 AM CDT Thu Jun 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR MONITEAU COUNTY WILL EXPIRE AT
1100 AM CDT...

The storms which prompted the warning have weakened. Therefore, the 
warning will be allowed to expire.

LAT...LON 3868 9284 3868 9262 3867 9241 3846 9248
      3843 9254 3843 9262 3860 9284
TIME...MOT...LOC 1559Z 281DEG 23KT 3868 9247 3862 9251 3853 9269 

$$

Pfahler

Nearby

Severe Thunderstorm Warnings in Missouri, 2021Every severe thunderstorm warning in 2021

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.