Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 100, NWS Springfield, MO

June 30, 2021Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 30, 2021, 2:29 PM CDT for Vernon County, Missouri. It was in force for 46 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 30, 2021, 2:29 PM CDT (19:29 UTC)
Expired
Jun 30, 2021, 3:15 PM CDT
In force
46 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 19:30 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, 7.5 hours before the alert went out and 123 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 724 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 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
724 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

961 
WUUS53 KSGF 301929
SVRSGF
MOC217-302015-
/O.NEW.KSGF.SV.W.0100.210630T1929Z-210630T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
229 PM CDT Wed Jun 30 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Vernon County in west central Missouri...

* Until 315 PM CDT.

* At 229 PM CDT, severe thunderstorms were located along a line
  extending from 10 miles west of Walker to near Nevada to near
  Sheldon, moving northeast at 25 mph.

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

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Nevada around 235 PM CDT.
  Walker around 250 PM CDT.
  Schell City around 315 PM CDT.

Other locations impacted by these severe thunderstorms include
Montevallo, Moundville, Milo, Deerfield, Harwood and Horton.

This includes Interstate 49 between mile markers 77 and 103.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3789 9456 3806 9430 3805 9424 3802 9424
      3805 9421 3804 9419 3806 9415 3804 9411
      3805 9410 3804 9407 3795 9406 3764 9408
      3765 9440 3775 9445
TIME...MOT...LOC 1929Z 243DEG 22KT 3791 9443 3781 9435 3767 9435 

HAIL...0.75IN
WIND...60MPH
 
$$

Schaumann
2 follow-up statements
853 
WWUS53 KSGF 301945
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
245 PM CDT Wed Jun 30 2021

MOC217-302015-
/O.CON.KSGF.SV.W.0100.000000T0000Z-210630T2015Z/
Vernon MO-
245 PM CDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR EASTERN VERNON COUNTY...

At 245 PM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Nevada to near Walker to near
Sheldon, moving northeast at 25 mph.

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

SOURCE...Radar indicated.

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

These severe storms will be near...
  Walker around 250 PM CDT.
  Schell City around 315 PM CDT.

Other locations impacted by these severe thunderstorms include
Montevallo, Milo, Harwood and Horton.

This includes Interstate 49 between mile markers 77 and 103.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3806 9430 3805 9424 3802 9424 3805 9421
      3804 9419 3806 9415 3804 9411 3805 9410
      3804 9407 3795 9406 3764 9408 3765 9434
      3780 9438 3795 9447
TIME...MOT...LOC 1945Z 243DEG 22KT 3795 9434 3785 9426 3771 9426 

HAIL...0.75IN
WIND...60MPH
 
$$

Schaumann
185 
WWUS53 KSGF 302013
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
313 PM CDT Wed Jun 30 2021

MOC217-302023-
/O.EXP.KSGF.SV.W.0100.000000T0000Z-210630T2015Z/
Vernon MO-
313 PM CDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN VERNON COUNTY WILL
EXPIRE AT 315 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Springfield.

LAT...LON 3806 9430 3805 9424 3802 9424 3805 9421
      3804 9419 3806 9415 3804 9411 3805 9410
      3804 9407 3795 9406 3764 9408 3765 9434
      3780 9438 3795 9447
TIME...MOT...LOC 2013Z 243DEG 22KT 3802 9415 3792 9407 3778 9407 

$$

Schaumann

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 2:56 AM CDTFlash Flood WatchSGFBarry, Barton, Benton, Camden, Cedar, Christian and 26 more40 hr
Jun 30, 2:14 PM CDTSpecial Weather StatementSGFVernon31 min
Jun 30, 2:57 PM CDTSpecial Weather StatementSGFCedar48 min
Jun 30, 3:10 PM CDTAreal Flood AdvisorySGFBarton, Cedar, Vernon3 hr
Jun 30, 4:01 PM CDTFlash Flood WarningSGFCedar, Vernon4 hr
Jun 30, 4:43 PM CDTFlash Flood WarningSGFChristian, Douglas, Webster, Wright3 hr

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.