Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 175, NWS Springfield, MO

December 10, 2021Dallas County, Polk County, Webster County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Dec 10, 2021, 7:11 PM CST for Dallas County, Polk County, Webster County, Missouri. It was in force for 49 min. 1 report 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, 7:11 PM CST (01:11 UTC)
Expired: Dec 10, 2021, 8:00 PM CST
In force: 49 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Dallas County, MO, Polk County, MO, Webster County, MO

The radar

The Springfield radar (KSGF), 51 km from the middle of the area, began a volume at 01:10 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, 7:11 PM CST	TSTM WND DMG	2 Ese Bolivar, MO	A FEW POWER LINES AND POLES WERE REPORTED DOWN KNOCKING POWER OUT TO PORTIONS OF BOLIVAR.

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, 1.2 hours before the alert went out and 102 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.

281 
WUUS53 KSGF 110111
SVRSGF
MOC059-167-225-110200-
/O.NEW.KSGF.SV.W.0175.211211T0111Z-211211T0200Z/

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

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northwestern Webster County in southwestern Missouri...
  Dallas County in southwestern Missouri...
  Southeastern Polk County in southwestern Missouri...

* Until 800 PM CST.

* At 711 PM CST, severe thunderstorms were located along a line
  extending from Bolivar to Morrisville to near Walnut Grove, moving
  northeast at 55 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Bolivar...                        Bennett Spring State Park...
  Buffalo...                        Pleasant Hope...
  Morrisville...                    Halfway...
  Bennett Springs...                Louisburg...
  Windyville...                     Elkland...
  Brighton...                       Leadmine...
  March...                          Pumpkin Center...
  Olive...                          Foose...
  Goodson...                        Plad...
  Long Lane...                      Charity...

 This includes Interstate 44 between mile markers 105 and 109.
 
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 3772 9285 3741 9286 3743 9338 3749 9345
      3762 9345 3778 9319 3789 9286
TIME...MOT...LOC 0111Z 238DEG 50KT 3759 9340 3750 9342 3744 9351 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Perez

2 follow-up statements

221 
WWUS53 KSGF 110133
SVSSGF

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

MOC059-167-225-110200-
/O.CON.KSGF.SV.W.0175.000000T0000Z-211211T0200Z/
Webster MO-Dallas MO-Polk MO-
733 PM CST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CST
FOR NORTHWESTERN WEBSTER...DALLAS AND SOUTHEASTERN POLK COUNTIES...

At 733 PM CST, severe thunderstorms were located along a line
extending from 11 miles southeast of Urbana to near Buffalo to near
Pleasant Hope, moving northeast at 60 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Bennett Spring State Park...      Buffalo...
Pleasant Hope...                  Halfway...
Bennett Springs...                Louisburg...
Windyville...                     Elkland...
Brighton...                       Leadmine...
March...                          Pumpkin Center...
Olive...                          Foose...
Plad...                           Long Lane...
Charity...                        

This includes Interstate 44 between mile markers 105 and 109.
 
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 3772 9285 3741 9286 3743 9338 3759 9337
      3782 9306 3789 9286
TIME...MOT...LOC 0133Z 244DEG 53KT 3778 9298 3761 9308 3746 9334 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Rothstein

886 
WWUS53 KSGF 110148
SVSSGF

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

MOC167-225-110158-
/O.CAN.KSGF.SV.W.0175.000000T0000Z-211211T0200Z/
Webster MO-Polk MO-
748 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WEBSTER AND
SOUTHEASTERN POLK COUNTIES 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 3772 9285 3751 9286 3747 9318 3769 9317
      3783 9303 3789 9286
TIME...MOT...LOC 0148Z 238DEG 50KT 3788 9278 3771 9288 3756 9314 

$$

MOC059-110200-
/O.CON.KSGF.SV.W.0175.000000T0000Z-211211T0200Z/
Dallas MO-
748 PM CST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CST
FOR DALLAS COUNTY...

At 748 PM CST, severe thunderstorms were located along a line
extending from 9 miles south of Camdenton to 12 miles west of Lebanon
to 6 miles southwest of Buffalo, moving northeast at 60 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Bennett Spring State Park...      Buffalo...
Bennett Springs...                Windyville...
Foose...                          Leadmine...
March...                          Plad...
Long Lane...                      Pumpkin Center...
Charity...                        

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 3772 9285 3751 9286 3747 9318 3769 9317
      3783 9303 3789 9286
TIME...MOT...LOC 0148Z 238DEG 50KT 3788 9278 3771 9288 3756 9314 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Rothstein

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, 7:14 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, 7:45 PM CST	Severe Thunderstorm Warning	SGF	Christian, Douglas, Greene, Webster	45 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.