Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 179, NWS Springfield, MO

December 10, 20214 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Dec 10, 2021, 7:45 PM CST for 4 counties in Missouri. It was in force for 45 min. 2 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, 7:45 PM CST (01:45 UTC)
Expired: Dec 10, 2021, 8:30 PM CST
In force: 45 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Christian County, MO, Douglas County, MO, Greene County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 33 km from the middle of the area, began a volume at 01:49 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, 7:49 PM CST	TSTM WND DMG	2 Ssw Turners, MO	TWO LARGE TREES REPORTED DOWN. ONE WAS UPROOTED AND THE OTHER SNAPPED. ONE TREE FELL ON POWERLINES KNOCKING OUT POWER FOR SEVERAL HOURS.
Dec 10, 7:49 PM CST	TSTM WND GST 58	Highlandville, MO	DIME SIZE HAIL WAS ALSO REPORTED.

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 00:00Z, 1.8 hours before the alert went out and 64 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: 637 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1113 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 344 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

As transmitted.

279 
WUUS53 KSGF 110145
SVRSGF
MOC043-067-077-225-110230-
/O.NEW.KSGF.SV.W.0179.211211T0145Z-211211T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
745 PM CST Fri Dec 10 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southern Webster County in southwestern Missouri...
  Northwestern Douglas County in southwestern Missouri...
  Christian County in southwestern Missouri...
  Southeastern Greene County in southwestern Missouri...

* Until 830 PM CST.

* At 745 PM CST, severe thunderstorms were located along a line
  extending from near Nixa to near Highlandville to 7 miles northeast
  of Reeds Spring, moving northeast at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Southeastern Springfield...       Nixa...
  Ozark...                          Rogersville...
  Seymour...                        Sparta...
  Highlandville...                  Fremont Hills...
  Fordland...                       Diggins...
  Spokane...                        Oldfield...
  Elkhead...                        Chestnutridge...
  Bruner...                         Selmore...
  Keltner...                        Christian Center...
  Chadwick...                       Linden...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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

&&

LAT...LON 3709 9335 3720 9307 3739 9269 3698 9271
      3681 9325 3682 9334
TIME...MOT...LOC 0145Z 237DEG 50KT 3699 9328 3691 9327 3682 9329 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Perez

2 follow-up statements

465 
WWUS53 KSGF 110201
SVSSGF

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

MOC077-110211-
/O.CAN.KSGF.SV.W.0179.000000T0000Z-211211T0230Z/
Greene MO-
801 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GREENE COUNTY IS
CANCELLED...

The storms which prompted the warning have 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 3689 9311 3705 9306 3720 9306 3739 9269
      3701 9271
TIME...MOT...LOC 0201Z 237DEG 50KT 3710 9307 3702 9306 3693 9308 

$$

MOC043-067-225-110230-
/O.CON.KSGF.SV.W.0179.000000T0000Z-211211T0230Z/
Webster MO-Douglas MO-Christian MO-
801 PM CST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CST
FOR SOUTHERN WEBSTER...NORTHWESTERN DOUGLAS AND NORTHEASTERN
CHRISTIAN COUNTIES...

At 801 PM CST, severe thunderstorms were located along a line
extending from Rogersville to Sparta to 10 miles southeast of Ozark,
moving northeast at 60 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Rogersville...                    Seymour...
Sparta...                         Fordland...
Diggins...                        Oldfield...
Chadwick...                       Elkhead...
Bruner...                         Keltner...
Dogwood...                        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3689 9311 3705 9306 3720 9306 3739 9269
      3701 9271
TIME...MOT...LOC 0201Z 237DEG 50KT 3710 9307 3702 9306 3693 9308 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Perez

631 
WWUS53 KSGF 110225
SVSSGF

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

MOC043-067-225-110235-
/O.EXP.KSGF.SV.W.0179.000000T0000Z-211211T0230Z/
Webster MO-Douglas MO-Christian MO-
825 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WEBSTER...
NORTHWESTERN DOUGLAS AND NORTHEASTERN CHRISTIAN COUNTIES WILL EXPIRE
AT 830 PM CST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

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

LAT...LON 3689 9311 3705 9306 3720 9306 3739 9269
      3701 9271
TIME...MOT...LOC 0225Z 237DEG 50KT 3726 9276 3718 9275 3709 9277 

$$

Perez

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 6:10 PM CST	Severe Thunderstorm Warning	SGF	Maries, Miller	35 min
Dec 10, 6:19 PM CST	Severe Thunderstorm Warning	SGF	Maries, Miller	26 min
Dec 10, 6:21 PM CST	Tornado Warning	SGF	Laclede, Pulaski, Texas, Wright	39 min
Dec 10, 6:22 PM CST	Severe Thunderstorm Warning	SGF	Maries, Phelps, Pulaski	38 min
Dec 10, 6:25 PM CST	Tornado Warning	SGF	Maries, Phelps, Pulaski	35 min
Dec 10, 6:27 PM CST	Severe Thunderstorm Warning	SGF	Barton, Dade, Jasper, Lawrence	26 min
Dec 10, 6:44 PM CST	Severe Thunderstorm Warning Considerable damage threat	SGF	Cedar, Dade, Greene, Lawrence, Polk	46 min
Dec 10, 6:48 PM CST	Tornado Warning	SGF	Maries, Phelps	15 min
Dec 10, 6:49 PM CST	Severe Thunderstorm Warning	SGF	Dent, Phelps, Pulaski	56 min
Dec 10, 7:04 PM CST	Severe Thunderstorm Warning	SGF	Barry, Stone	41 min
Dec 10, 7:11 PM CST	Severe Thunderstorm Warning Considerable damage threat	SGF	Dallas, Polk, Webster	49 min
Dec 10, 7:14 PM CST	Severe Thunderstorm Warning	SGF	Dent, Phelps, Texas	46 min
Dec 10, 7:26 PM CST	Tornado Warning	SGF	Barry, Christian, Stone	34 min
Dec 10, 7:37 PM CST	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	38 min
Dec 10, 7:37 PM CST	Severe Thunderstorm Warning Considerable damage threat	SGF	Camden, Dallas, Laclede, Miller, Polk, Pulaski	53 min
Dec 10, 7:39 PM CST	Tornado Warning	SGF	Christian, Stone, Taney	36 min
Dec 10, 7:54 PM CST	Severe Thunderstorm Warning	SGF	Dallas, Greene, Laclede, Webster	36 min
Dec 10, 7:58 PM CST	Tornado Warning Tornado observed	SGF	Christian, Douglas, Ozark, Taney	47 min
Dec 10, 8:07 PM CST	Severe Thunderstorm Warning	SGF	Camden, Laclede, Maries, Miller, Phelps, Pulaski	47 min
Dec 10, 8:24 PM CST	Tornado Warning	SGF	Douglas, Texas, Wright	18 min
Dec 10, 8:41 PM CST	Severe Thunderstorm Warning	SGF	Douglas, Howell, Texas, Wright	34 min
Dec 10, 9:10 PM CST	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	35 min
Dec 10, 9:59 PM CST	Severe Thunderstorm Warning	SGF	Shannon	31 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021 Every 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.