Alert archive / Missouri / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 21, NWS St. Louis, MO

April 30, 2022Boone County, Cole County, Moniteau County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 30, 2022, 12:48 AM CDT for Boone County, Cole County, Moniteau County, Missouri. It was in force for 57 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
Apr 30, 2022, 12:48 AM CDT (05:48 UTC)
Expired
Apr 30, 2022, 1:45 AM CDT
In force
57 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Boone County, MO, Cole County, MO, Moniteau County, MO

The radar

The St Louis radar (KLSX), 149 km from the middle of the area, began a volume at 05:51 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 00:00Z, 5.8 hours before the alert went out and 238 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 2022-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 520 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 2022-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
520 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
1792 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

202 
WUUS53 KLSX 300548
SVRLSX
MOC019-051-135-300645-
/O.NEW.KLSX.SV.W.0021.220430T0548Z-220430T0645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1248 AM CDT Sat Apr 30 2022

The National Weather Service in St Louis has issued a

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

* Until 145 AM CDT.

* At 1248 AM CDT, severe thunderstorms were located along a line
  extending from near Fayette to near Otterville to 8 miles southeast
  of Warsaw, moving east at 45 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 100 AM CDT.

Other locations in the path of these severe thunderstorms include
Clarksburg, Columbia, California, Hallsville, Sturgeon, Jamestown,
McGirk, Murry, Centralia, Centertown, St. Martins, Jefferson City and
Ashland.

This includes Interstate 70 in Missouri between exits 115 and 133.
 
This also includes Rock Bridge State Park, Finger Lakes State Park,
and Jewell Cemetery Historic Site.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3868 9262 3892 9250 3898 9257 3900 9256
      3924 9243 3924 9210 3906 9212 3903 9214
      3890 9217 3881 9214 3870 9223 3864 9221
      3834 9220 3832 9226 3834 9229 3834 9241
      3842 9241 3843 9262 3860 9284 3868 9284
TIME...MOT...LOC 0548Z 268DEG 39KT 3912 9262 3866 9295 3814 9330 

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

$$

MRM
2 follow-up statements
612 
WWUS53 KLSX 300622
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
122 AM CDT Sat Apr 30 2022

MOC019-051-135-300645-
/O.CON.KLSX.SV.W.0021.000000T0000Z-220430T0645Z/
Cole MO-Boone MO-Moniteau MO-
122 AM CDT Sat Apr 30 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CDT
FOR COLE...BOONE AND MONITEAU COUNTIES...

At 121 AM CDT, severe thunderstorms were located along a line
extending from near Sturgeon to Centertown to near Village of Four
Seasons, moving east at 50 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
  Hallsville, St. Martins, Sturgeon, Centralia and Jefferson City.

This also includes Rock Bridge State Park, Finger Lakes State Park,
and Jewell Cemetery Historic Site.
 
This includes Interstate 70 in Missouri between exits 115 and 133.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3868 9262 3892 9250 3898 9257 3900 9256
      3924 9243 3924 9210 3906 9212 3903 9214
      3890 9217 3881 9214 3870 9223 3864 9221
      3834 9220 3832 9226 3834 9229 3834 9241
      3842 9241 3843 9262
TIME...MOT...LOC 0621Z 273DEG 45KT 3923 9224 3863 9241 3813 9275 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MRM
370 
WWUS53 KLSX 300643
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
143 AM CDT Sat Apr 30 2022

MOC019-051-135-300652-
/O.EXP.KLSX.SV.W.0021.000000T0000Z-220430T0645Z/
Cole MO-Boone MO-Moniteau MO-
143 AM CDT Sat Apr 30 2022

...THE SEVERE THUNDERSTORM WARNING FOR COLE...BOONE AND MONITEAU
COUNTIES WILL EXPIRE AT 145 AM CDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3868 9262 3892 9250 3898 9257 3900 9256
      3924 9243 3924 9210 3906 9212 3903 9214
      3890 9217 3881 9214 3870 9223 3864 9221
      3834 9220 3832 9226 3834 9229 3834 9241
      3842 9241 3843 9262
TIME...MOT...LOC 0642Z 268DEG 39KT 3924 9195 3864 9212 3814 9247 

$$

MRM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 11:44 AM CDTRiver Flood WarningLSXLincoln67 hr
Apr 30, 4:08 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois67 min
Apr 30, 4:42 PM CDTSevere Thunderstorm WarningLSXReynolds18 min
Apr 30, 4:46 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Francois44 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2022Every severe thunderstorm warning in 2022

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.