Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 158, NWS Springfield, MO

October 24, 2021Shannon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Oct 24, 2021, 9:37 PM CDT for Shannon County, Missouri. It was in force for 53 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 24, 2021, 9:37 PM CDT (02:37 UTC)
Expired
Oct 24, 2021, 10:30 PM CDT
In force
53 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Shannon County, MO

The radar

The St Louis radar (KLSX), 178 km from the middle of the area, began a volume at 02:41 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.

IssuedProductOfficeLasted
Oct 24, 2:06 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.6 hours before the alert went out and 233 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2021-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1534 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2021-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1534 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
846 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
2.8
Supercell composite
12.3

Open this sounding in Storm Lab

The text

As transmitted.

391 
WUUS53 KSGF 250237
SVRSGF
MOC203-250330-
/O.NEW.KSGF.SV.W.0158.211025T0237Z-211025T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
937 PM CDT Sun Oct 24 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Shannon County in south central Missouri...

* Until 1030 PM CDT.

* At 937 PM CDT, severe thunderstorms were located along a line
  extending from 12 miles northeast of Summersville to near Birch
  Tree to 6 miles south of Mountain View, moving east at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Echo Bluff State Park...          Current River State Park...
  Ozark National Scenic Riverways...
  Winona...
  Birch Tree...                     Eminence...
  Alley Spring...                   Midridge...
  Round Spring...                   West Eminence...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Missouri.

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

A Tornado Watch remains in effect until 1000 PM CDT for south central
Missouri.

&&

LAT...LON 3710 9102 3708 9122 3689 9122 3689 9159
      3697 9157 3737 9156 3741 9118 3726 9116
      3725 9112 3720 9112 3720 9109 3718 9109
      3716 9104 3714 9104 3714 9102
TIME...MOT...LOC 0237Z 266DEG 48KT 3730 9151 3706 9152 3690 9174 

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

$$

Rothstein
2 follow-up statements
959 
WWUS53 KSGF 250302
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1002 PM CDT Sun Oct 24 2021

MOC203-250330-
/O.CON.KSGF.SV.W.0158.000000T0000Z-211025T0330Z/
Shannon MO-
1002 PM CDT Sun Oct 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHEASTERN SHANNON COUNTY...

At 1002 PM CDT, severe thunderstorms were located along a line
extending from 6 miles southwest of Reynolds to 8 miles northwest of
Van Buren to near Winona, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Ozark National Scenic Riverways...
Winona...
Birch Tree...                     Eminence...
West Eminence...                  Midridge...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for south central
Missouri.

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

&&

LAT...LON 3710 9102 3708 9122 3689 9122 3689 9159
      3697 9157 3719 9134 3741 9118 3726 9116
      3725 9112 3720 9112 3720 9109 3718 9109
      3716 9104 3714 9104 3714 9102
TIME...MOT...LOC 0302Z 266DEG 48KT 3732 9113 3708 9114 3692 9136 

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

$$

Rothstein
397 
WWUS53 KSGF 250327
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1027 PM CDT Sun Oct 24 2021

MOC203-250333-
/O.EXP.KSGF.SV.W.0158.000000T0000Z-211025T0330Z/
Shannon MO-
1027 PM CDT Sun Oct 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SHANNON COUNTY
WILL EXPIRE AT 1030 PM CDT...
    
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 CDT for south central
Missouri.

LAT...LON 3710 9102 3708 9122 3689 9122 3689 9159
      3697 9157 3719 9134 3741 9118 3726 9116
      3725 9112 3720 9112 3720 9109 3718 9109
      3716 9104 3714 9104 3714 9102
TIME...MOT...LOC 0323Z 266DEG 48KT 3734 9079 3710 9080 3694 9102 

$$

Rothstein

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 7:06 PM CDTTornado WarningSGFDent, Shannon9 min
Oct 24, 7:10 PM CDTSevere Thunderstorm WarningSGFMaries, Phelps, Pulaski50 min
Oct 24, 7:11 PM CDTSevere Thunderstorm WarningSGFBarry49 min
Oct 24, 7:13 PM CDTSevere Thunderstorm WarningSGFGreene, Laclede, Webster, Wright47 min
Oct 24, 7:23 PM CDTSevere Thunderstorm WarningSGFShannon37 min
Oct 24, 7:37 PM CDTSevere Thunderstorm WarningSGFBarry, Stone38 min
Oct 24, 7:42 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Webster48 min
Oct 24, 7:52 PM CDTSevere Thunderstorm WarningSGFTexas, Wright38 min
Oct 24, 8:08 PM CDTTornado WarningSGFDouglas, Wright23 min
Oct 24, 8:23 PM CDTSevere Thunderstorm WarningSGFTaney52 min
Oct 24, 8:44 PM CDTSevere Thunderstorm WarningSGFDouglas, Ozark46 min
Oct 24, 8:50 PM CDTSevere Thunderstorm WarningSGFOzark, Taney55 min
Oct 24, 9:04 PM CDTSevere Thunderstorm WarningSGFShannon, Texas41 min
Oct 24, 9:18 PM CDTSevere Thunderstorm WarningSGFHowell, Oregon, Ozark, Shannon57 min
Oct 24, 10:10 PM CDTSpecial Weather StatementSGFOregon65 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.