Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 31, NWS Springfield, MO

December 10, 2021Laclede County, Webster County, Wright County, Missouri

NWS Springfield, MO issued this tornado warning at Dec 10, 2021, 5:59 PM CST for Laclede County, Webster County, Wright County, Missouri. It was in force for 31 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: Dec 10, 2021, 5:59 PM CST (23:59 UTC)
Expired: Dec 10, 2021, 6:30 PM CST
In force: 31 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Laclede County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 45 km from the middle of the area, began a volume at 00:04 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

Time	Report	Where	Remark
Dec 10, 6:13 PM CST	TSTM WND DMG	5 Nnw Duncan, MO	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 5 NNW DUNCAN. SIGNIFICANT DAMAGE WAS REPORTED TO TWO BARNS AND SEVERAL OUTBUILDINGS. AT LEAST 13 TREES WERE SNAPPED OFF OR UPROOTED.
Dec 10, 6:13 PM CST	TORNADO	5 Ese Niangua, MO	AN EF-1 TORNADO WITH MAXIMUM WINDS OF 90 MPH DAMAGED OR DESTROYED NUMEROUS OUTBUILDINGS AS WELL AS SNAPPING/UPROOTING NUMEROUS TREES. THE TORNADO ALSO CAUSED MINOR DAMAGE TO A FEW HOMES AS WELL AS FLIPPING AN RV CAMPER. THE TORNADO TRAVELED 6 MILES WITH A WIDT
Dec 10, 6:22 PM CST	TSTM WND DMG	3 Wsw Grovespring, MO	MOBILE HOME MOVED OFF ITS FOUNDATION NEAR THE INTERSECTION OF HIGHWAY M AND DD.

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.

Issued	Product	Office	Lasted
Dec 10, 5:17 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 12.0 hours before the alert went out and 94 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: 62 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 870 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 419 m²/s²
0-3 km storm-relative helicity: 441 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

048 
WFUS53 KSGF 102359
TORSGF
MOC105-225-229-110030-
/O.NEW.KSGF.TO.W.0031.211210T2359Z-211211T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
559 PM CST Fri Dec 10 2021

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Northern Webster County in southwestern Missouri...
  Northwestern Wright County in southwestern Missouri...
  Southwestern Laclede County in southwestern Missouri...

* Until 630 PM CST.
    
* At 559 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Strafford, moving northeast at 55 mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Marshfield...                     Conway...
  Niangua...                        Duncan...
  Phillipsburg...                   Rader...
  Grovespring...                    Northview...

This includes Interstate 44 between mile markers 90 and 109, and
between mile markers 112 and 117.
 
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 3727 9306 3727 9308 3730 9308 3749 9289
      3748 9285 3753 9285 3759 9279 3730 9247
      3719 9306
TIME...MOT...LOC 2359Z 241DEG 46KT 3726 9302 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Perez

2 follow-up statements

232 
WWUS53 KSGF 110006
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
606 PM CST Fri Dec 10 2021

MOC105-225-229-110030-
/O.CON.KSGF.TO.W.0031.000000T0000Z-211211T0030Z/
Webster MO-Wright MO-Laclede MO-
606 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CST FOR NORTHERN
WEBSTER...NORTHWESTERN WRIGHT AND SOUTHWESTERN LACLEDE COUNTIES...
    
At 605 PM CST, a severe thunderstorm capable of producing a tornado 
was located near Marshfield, moving east at 55 mph. Storm spotter 
reports wall cloud south of Marshfield.

HAZARD...Tornado and quarter size hail.

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...
Marshfield...                     Conway...
Niangua...                        Duncan...
Phillipsburg...                   Rader...
Grovespring...                    Northview...

This includes Interstate 44 between mile markers 94 and 109, and
between mile markers 112 and 117.
 
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 3724 9296 3731 9302 3749 9289 3748 9285
      3753 9285 3759 9279 3730 9247
TIME...MOT...LOC 0005Z 248DEG 50KT 3730 9291 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Perez

216 
WWUS53 KSGF 110017
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
617 PM CST Fri Dec 10 2021

MOC105-110027-
/O.CAN.KSGF.TO.W.0031.000000T0000Z-211211T0030Z/
Laclede MO-
617 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR SOUTHWESTERN LACLEDE COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CST for southwestern
Missouri.

LAT...LON 3733 9277 3737 9281 3748 9278 3748 9267
      3736 9254
TIME...MOT...LOC 0017Z 241DEG 46KT 3738 9274 

$$

MOC225-229-110030-
/O.CON.KSGF.TO.W.0031.000000T0000Z-211211T0030Z/
Webster MO-Wright MO-
617 PM CST Fri Dec 10 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CST FOR
NORTHEASTERN WEBSTER AND NORTHWESTERN WRIGHT COUNTIES...
    
At 617 PM CST, a severe thunderstorm capable of producing a tornado
was located near Niangua, or 9 miles east of Marshfield, moving
northeast at 55 mph.

HAZARD...Tornado and quarter size hail.

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...
Grovespring...                    Rader...

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 3733 9277 3737 9281 3748 9278 3748 9267
      3736 9254
TIME...MOT...LOC 0017Z 241DEG 46KT 3738 9274 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Perez

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 2:42 AM CST	Dense Fog Advisory	SGF	Dent, Douglas, Howell, Maries, Oregon, Ozark and 5 more	6 hr
Dec 10, 5:33 PM CST	Severe Thunderstorm Warning	SGF	Greene, Webster	42 min
Dec 10, 5:44 PM CST	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede, Miller	46 min
Dec 10, 5:49 PM CST	Severe Thunderstorm Warning	SGF	Camden, Laclede, Pulaski	41 min

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