Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 22, NWS Springfield, MO

October 11, 2021McDonald County, Missouri

NWS Springfield, MO issued this tornado warning at Oct 11, 2021, 12:25 AM CDT for McDonald County, Missouri. It was in force for 35 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, 12:25 AM CDT (05:25 UTC)
Expired: Oct 11, 2021, 1:00 AM CDT
In force: 35 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County McDonald County, MO

The radar

The Springfield radar (KSGF), 111 km from the middle of the area, began a volume at 05:25 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 watch it was issued in

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

Issued	Product	Office	Lasted
Oct 10, 9:24 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.4 hours before the alert went out and 61 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.

473 
WFUS53 KSGF 110525
TORSGF
MOC119-110600-
/O.NEW.KSGF.TO.W.0022.211011T0525Z-211011T0600Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
1225 AM CDT Mon Oct 11 2021

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  McDonald County in southwestern Missouri...

* Until 100 AM CDT.
    
* At 1225 AM CDT, tornado producing storms were located along a line
  extending from near Wyandotte to South West City to near Maysville,
  moving northeast at 45 mph.

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  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...
  Big Sugar Creek State Park...     Anderson...
  Noel...                           Dodge...
  Goodman...                        South West City...
  Pineville...                      Lanagan...
  Cayuga...                         Tiff City...
  Rocky Comfort...                  

This includes Interstate 49 between mile markers 1 and 14.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3650 9462 3676 9462 3675 9407 3674 9407
      3650 9436
TIME...MOT...LOC 0525Z 221DEG 47KT 3673 9472 3653 9460 3636 9465 

TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN

$$

Wise

2 follow-up statements

206 
WWUS53 KSGF 110541
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1241 AM CDT Mon Oct 11 2021

MOC119-110600-
/O.CON.KSGF.TO.W.0022.000000T0000Z-211011T0600Z/
McDonald MO-
1241 AM CDT Mon Oct 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR MCDONALD
COUNTY...
    
At 1241 AM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Grove to near South
West City to near Noel to near Maysville, moving northeast at 40 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...
Big Sugar Creek State Park...     Anderson...
Noel...                           Dodge...
Goodman...                        South West City...
Pineville...                      Lanagan...
Cayuga...                         Tiff City...
Rocky Comfort...                  

This includes Interstate 49 between mile markers 1 and 14.
 
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.

This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3650 9462 3676 9462 3675 9407 3674 9407
      3650 9436
TIME...MOT...LOC 0541Z 212DEG 33KT 3661 9469 3660 9459 3649 9453 3635
9465

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

$$

Wise

591 
WWUS53 KSGF 110602
SVSSGF

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

MOC119-110608-
/O.EXP.KSGF.TO.W.0022.000000T0000Z-211011T0600Z/
McDonald MO-
102 AM CDT Mon Oct 11 2021

...THE TORNADO WARNING FOR MCDONALD COUNTY WILL EXPIRE AT 100 AM
CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer appear capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Tornado Watch remains in effect until 200 AM CDT for southwestern
Missouri.

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


LAT...LON 3650 9462 3676 9462 3675 9407 3674 9407
      3650 9436
TIME...MOT...LOC 0558Z 221DEG 47KT 3676 9453 3675 9443 3664 9437 3650
9449

$$

Wise

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, 12:58 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, 5:09 AM CDT	Tornado Warning	SGF	Cedar, Vernon	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.