Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 73, NWS Springfield, MO

June 11, 2021Benton County, Hickory County, St. Clair County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 11, 2021, 5:39 PM CDT for Benton County, Hickory County, St. Clair County, Missouri. It was in force for 66 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 11, 2021, 5:39 PM CDT (22:39 UTC)
Expired
Jun 11, 2021, 6:45 PM CDT
In force
66 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

Counties Benton County, MO, Hickory County, MO, St. Clair County, MO

The radar

The Springfield radar (KSGF), 91 km from the middle of the area, began a volume at 22:39 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.

What was reported inside it

TimeReportWhereRemark
Jun 11, 6:00 PM CDTHAIL 1.251 Ne Warsaw, MOTIME ESTIMATED VIA RADAR. REPORT VIA SOCIAL MEDIA.
Jun 11, 6:30 PM CDTTSTM WND DMG2 Ssw Preston, MOPOWER LINES DOWN ON HWY D BETWEEN PRESTON AND NEMO. TIME BASED ON RADAR.
Jun 11, 6:30 PM CDTTSTM WND DMGHermitage, MOPOWER LINES DOWN IN HERMITAGE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 11, 3:54 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 133 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 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2202 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 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
2202 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted.

092 
WUUS53 KSGF 112239
SVRSGF
MOC015-085-185-112345-
/O.NEW.KSGF.SV.W.0073.210611T2239Z-210611T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
539 PM CDT Fri Jun 11 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Hickory County in central Missouri...
  Southern Benton County in central Missouri...
  Eastern St. Clair County in west central Missouri...

* Until 645 PM CDT.

* At 538 PM CDT, severe thunderstorms were located along a line
  extending from near Stover to Clinton, moving south at 30 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Pomme de Terre Lake...            Truman Lake...
  Truman State Park...              Pomme De Terre State Park...
  Warsaw...                         Pittsburg...
  Osceola...                        Hermitage...
  Weaubleau...                      Wheatland...
  Preston...                        Cross Timbers...
  Collins...                        Flemington...
  Vista...                          Gerster...
  Quincy...                         Lakeview Heights...
  Fristoe...                        Knobby...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Truman Lake, get away from the water and move indoors 
or inside a vehicle. Remember, lightning can strike out to 15 miles 
from the parent thunderstorm. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now!  Do not 
be caught on the water in a thunderstorm.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3819 9308 3819 9306 3790 9307 3790 9318
      3780 9319 3781 9357 3782 9357 3784 9381
      3789 9381 3790 9385 3821 9360 3820 9356
      3822 9356 3821 9353 3831 9352 3836 9307
TIME...MOT...LOC 2238Z 000DEG 21KT 3846 9307 3838 9374 

HAIL...1.00IN
WIND...70MPH
 
$$

Cramer
2 follow-up statements
934 
WWUS53 KSGF 112302
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
602 PM CDT Fri Jun 11 2021

MOC015-085-185-112345-
/O.CON.KSGF.SV.W.0073.000000T0000Z-210611T2345Z/
Hickory MO-Benton MO-St. Clair MO-
602 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR HICKORY...SOUTHERN BENTON AND EASTERN ST. CLAIR COUNTIES...

At 602 PM CDT, severe thunderstorms were located along a line
extending from 13 miles west of Laurie to 7 miles east of Lowry City,
moving south at 40 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Pomme de Terre Lake...            Truman Lake...
Truman State Park...              Pomme De Terre State Park...
Warsaw...                         Pittsburg...
Osceola...                        Hermitage...
Weaubleau...                      Wheatland...
Preston...                        Cross Timbers...
Collins...                        Flemington...
Vista...                          Gerster...
Quincy...                         Lakeview Heights...
Fristoe...                        Knobby...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Pomme De Terre Lake and Truman Lake, get away from the 
water and move indoors or inside a vehicle. Remember, lightning can 
strike out to 15 miles from the parent thunderstorm. If you can hear 
thunder, you are close enough to be struck by lightning. Move to 
safe shelter now!  Do not be caught on the water in a thunderstorm.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3819 9308 3819 9306 3790 9307 3790 9318
      3780 9319 3781 9357 3782 9357 3784 9381
      3805 9372 3821 9360 3820 9356 3822 9356
      3821 9353 3831 9352 3836 9307
TIME...MOT...LOC 2302Z 349DEG 36KT 3819 9307 3813 9359 

HAIL...1.00IN
WIND...70MPH
 
$$

Cramer
555 
WWUS53 KSGF 112346
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
646 PM CDT Fri Jun 11 2021

MOC015-085-185-112356-
/O.EXP.KSGF.SV.W.0073.000000T0000Z-210611T2345Z/
Hickory MO-Benton MO-St. Clair MO-
646 PM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR HICKORY...SOUTHERN BENTON AND
EASTERN ST. CLAIR COUNTIES HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.  However heavy
rain is still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
central, southwestern and west central Missouri.

LAT...LON 3819 9308 3819 9306 3790 9307 3790 9318
      3780 9319 3781 9357 3782 9357 3784 9381
      3805 9372 3821 9360 3820 9356 3822 9356
      3821 9353 3831 9352 3836 9307
TIME...MOT...LOC 2346Z 000DEG 21KT 3793 9307 3787 9359 

$$

Cramer

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 5:06 PM CDTSevere Thunderstorm WarningSGFBenton, Morgan54 min
Jun 11, 5:58 PM CDTSevere Thunderstorm WarningSGFCamden62 min
Jun 11, 6:41 PM CDTSevere Thunderstorm WarningSGFCedar, Polk64 min
Jun 11, 6:55 PM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Laclede35 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.