Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 26, NWS Springfield, MO

October 11, 2021Cedar County, Vernon County, Missouri

NWS Springfield, MO issued this tornado warning at Oct 11, 2021, 5:09 AM CDT for Cedar County, Vernon County, Missouri. It was in force for 21 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: Oct 11, 2021, 5:09 AM CDT (10:09 UTC)
Expired: Oct 11, 2021, 5:30 AM CDT
In force: 21 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Cedar County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 85 km from the middle of the area, began a volume at 10:12 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, 10.2 hours before the alert went out and 101 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2067 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

901 
WFUS53 KSGF 111009
TORSGF
MOC039-217-111030-
/O.NEW.KSGF.TO.W.0026.211011T1009Z-211011T1030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
509 AM CDT Mon Oct 11 2021

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Northwestern Cedar County in southwestern Missouri...
  Southeastern Vernon County in west central Missouri...

* Until 530 AM CDT.
    
* At 509 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 12 miles east of Sheldon, or 13 miles northeast of
  Lamar, moving north at 55 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  El Dorado Springs...              Montevallo...
  Olympia...                        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3792 9407 3790 9406 3790 9389 3763 9402
      3763 9408 3764 9408 3764 9410 3792 9416
TIME...MOT...LOC 1009Z 188DEG 46KT 3761 9407 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Titus

2 follow-up statements

526 
WWUS53 KSGF 111018
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
518 AM CDT Mon Oct 11 2021

MOC039-217-111030-
/O.CON.KSGF.TO.W.0026.000000T0000Z-211011T1030Z/
Cedar MO-Vernon MO-
518 AM CDT Mon Oct 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CDT FOR
NORTHWESTERN CEDAR AND EAST CENTRAL VERNON COUNTIES...
    
At 518 AM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles south of El Dorado Springs, moving north at 55
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
El Dorado Springs...              Olympia...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3769 9403 3769 9409 3792 9415 3792 9407
      3790 9406 3790 9392
TIME...MOT...LOC 1018Z 187DEG 48KT 3775 9405 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Titus

992 
WWUS53 KSGF 111027
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
527 AM CDT Mon Oct 11 2021

MOC039-217-111037-
/O.EXP.KSGF.TO.W.0026.000000T0000Z-211011T1030Z/
Cedar MO-Vernon MO-
527 AM CDT Mon Oct 11 2021

...THE TORNADO WARNING FOR NORTHWESTERN CEDAR AND EAST CENTRAL VERNON
COUNTIES WILL EXPIRE AT 530 AM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 3769 9403 3769 9409 3792 9415 3792 9407
      3790 9406 3790 9392
TIME...MOT...LOC 1027Z 188DEG 46KT 3783 9404 

$$

Titus

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 10, 9:40 PM CDT	River Flood Watch	SGF	Vernon	11 hr
Oct 11, 12:18 AM CDT	Severe Thunderstorm Warning	SGF	McDonald	27 min
Oct 11, 12:25 AM CDT	Tornado Warning Tornado observed	SGF	McDonald	35 min
Oct 11, 12:58 AM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	47 min
Oct 11, 1:16 AM CDT	Tornado Warning Tornado observed	SGF	Newton	29 min
Oct 11, 1:31 AM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	22 min
Oct 11, 3:39 AM CDT	Special Weather Statement	SGF	Jasper, McDonald, Newton	36 min
Oct 11, 3:53 AM CDT	Special Weather Statement	SGF	Barton, Vernon	52 min
Oct 11, 4:15 AM CDT	Special Weather Statement	SGF	Barry, Jasper, Newton	60 min
Oct 11, 4:42 AM CDT	Tornado Warning	SGF	Barton, Dade, Jasper	18 min
Oct 11, 4:54 AM CDT	Tornado Warning Tornado observed	SGF	Barton, Cedar, Dade	21 min
Oct 11, 5:40 AM CDT	Wind Advisory	SGF	Barton, Benton, Cedar, Dade, Dallas, Greene and 6 more	5 hr

Nearby

Tornado Warnings in Missouri, 2021 Every tornado warning in 2021 Tornadoes 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.