Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 34, NWS Springfield, MO

December 10, 2021Maries County, Phelps County, Missouri

NWS Springfield, MO issued this tornado warning at Dec 10, 2021, 6:48 PM CST for Maries County, Phelps County, Missouri. It was in force for 15 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, 6:48 PM CST (00:48 UTC)
Expired: Dec 10, 2021, 7:03 PM CST
In force: 15 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Maries County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 107 km from the middle of the area, began a volume at 00:52 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, 7:02 PM CST	TSTM WND GST 58	2 Nw Vichy, MO	MEASURED AT THE KVIH ASOS.

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, 0.8 hours before the alert went out and 232 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.

506 
WFUS53 KSGF 110048
TORSGF
MOC125-161-110115-
/O.NEW.KSGF.TO.W.0034.211211T0048Z-211211T0115Z/

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

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Southeastern Maries County in central Missouri...
  Northern Phelps County in east central Missouri...

* Until 715 PM CST.
    
* At 647 PM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles north of Doolittle, or 8 miles northwest of
  Rolla, moving northeast at 60 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...
  St. James...                      Vichy...
  Rosati...                         

This includes Interstate 44 near mile marker 196, and between mile
markers 198 and 200.
 
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 3827 9164 3816 9164 3815 9153 3802 9153
      3797 9192 3809 9196 3828 9165
TIME...MOT...LOC 0047Z 243DEG 51KT 3804 9185 

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

$$

Rothstein

1 follow-up statement

791 
WWUS53 KSGF 110103
SVSSGF

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

MOC125-161-110113-
/O.CAN.KSGF.TO.W.0034.000000T0000Z-211211T0115Z/
Maries MO-Phelps MO-
703 PM CST Fri Dec 10 2021

...THE TORNADO WARNING FOR SOUTHEASTERN MARIES AND NORTHERN PHELPS
COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Tornado Watch remains in effect until 1100 PM CST for central and
east central Missouri.

LAT...LON 3827 9164 3816 9164 3815 9153 3802 9153
      3797 9192 3809 9196 3828 9165
TIME...MOT...LOC 0101Z 243DEG 51KT 3815 9158 

$$

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, 6:49 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, 7:45 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

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.