Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 115, NWS Springfield, MO

July 31, 2021Dent County, Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 31, 2021, 4:39 PM CDT for Dent County, Phelps County, Missouri. It was in force for 51 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: Jul 31, 2021, 4:39 PM CDT (21:39 UTC)
Expired: Jul 31, 2021, 5:30 PM CDT
In force: 51 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dent County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 142 km from the middle of the area, began a volume at 21:42 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 201 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: 1314 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1358 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

034 
WUUS53 KSGF 312139
SVRSGF
MOC065-161-312230-
/O.NEW.KSGF.SV.W.0115.210731T2139Z-210731T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
439 PM CDT Sat Jul 31 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northwestern Dent County in south central Missouri...
  Southern Phelps County in east central Missouri...

* Until 530 PM CDT.

* At 439 PM CDT, a severe thunderstorm was located near Newburg, or 9
  miles southwest of Rolla, moving southeast at 25 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.

* This severe thunderstorm will remain over mainly rural areas of
  northwestern Dent and southern Phelps Counties, including the
  following locations... Edgar Springs, Lenox, Lake Spring, Lecoma
  and Anutt.

This includes Interstate 44 between mile markers 180 and 183.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3784 9198 3790 9195 3793 9184 3775 9152
      3764 9163 3760 9181
TIME...MOT...LOC 2139Z 310DEG 21KT 3784 9187 

HAIL...1.00IN
WIND...60MPH
 
$$

Schaumann

4 follow-up statements

349 
WWUS53 KSGF 312156
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
456 PM CDT Sat Jul 31 2021

MOC065-161-312230-
/O.CON.KSGF.SV.W.0115.000000T0000Z-210731T2230Z/
Dent MO-Phelps MO-
456 PM CDT Sat Jul 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHWESTERN DENT AND SOUTHEASTERN PHELPS COUNTIES...

At 455 PM CDT, a severe thunderstorm was located 10 miles south of
Rolla, moving southeast at 25 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.

This severe thunderstorm will remain over mainly rural areas of
northwestern Dent and southeastern Phelps Counties, including the
following locations... Lenox, Lake Spring, Lecoma and Anutt.

This includes Interstate 44 between mile markers 181 and 183.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3781 9191 3788 9177 3775 9152 3764 9163
      3761 9177
TIME...MOT...LOC 2155Z 301DEG 23KT 3779 9176 

HAIL...1.00IN
WIND...60MPH
 
$$

Schaumann

503 
WWUS53 KSGF 312207
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
507 PM CDT Sat Jul 31 2021

MOC065-161-312230-
/O.CON.KSGF.SV.W.0115.000000T0000Z-210731T2230Z/
Dent MO-Phelps MO-
507 PM CDT Sat Jul 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHWESTERN DENT AND SOUTH CENTRAL PHELPS COUNTIES...

At 507 PM CDT, a severe thunderstorm was located 13 miles northwest
of Salem, moving southeast at 20 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.

This severe thunderstorm will remain over mainly rural areas of
northwestern Dent and south central Phelps Counties, including the
following locations... Lenox, Lecoma, Anutt and Lake Spring.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3778 9189 3782 9174 3771 9156 3764 9163
      3761 9177
TIME...MOT...LOC 2207Z 318DEG 18KT 3774 9174 

HAIL...1.00IN
WIND...60MPH
 
$$

Schaumann

229 
WWUS53 KSGF 312217
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
517 PM CDT Sat Jul 31 2021

MOC161-312226-
/O.CAN.KSGF.SV.W.0115.000000T0000Z-210731T2230Z/
Phelps MO-
517 PM CDT Sat Jul 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PHELPS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3761 9176 3773 9181 3779 9176 3779 9169
      3771 9156 3764 9163
TIME...MOT...LOC 2216Z 308DEG 20KT 3771 9169 

$$

MOC065-312230-
/O.CON.KSGF.SV.W.0115.000000T0000Z-210731T2230Z/
Dent MO-
517 PM CDT Sat Jul 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHWESTERN DENT COUNTY...

At 516 PM CDT, a severe thunderstorm was located 9 miles northwest of
Salem, moving southeast at 25 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.

This severe thunderstorm will remain over mainly rural areas of
northwestern Dent County, including the following locations... Lenox,
Lake Spring, Lecoma and Anutt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3761 9176 3773 9181 3779 9176 3779 9169
      3771 9156 3764 9163
TIME...MOT...LOC 2216Z 308DEG 20KT 3771 9169 

HAIL...1.00IN
WIND...60MPH
 
$$

Schaumann

059 
WWUS53 KSGF 312226
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
526 PM CDT Sat Jul 31 2021

MOC065-312236-
/O.EXP.KSGF.SV.W.0115.000000T0000Z-210731T2230Z/
Dent MO-
526 PM CDT Sat Jul 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DENT COUNTY WILL
EXPIRE AT 530 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Springfield.

LAT...LON 3761 9176 3773 9181 3779 9176 3779 9169
      3771 9156 3764 9163
TIME...MOT...LOC 2226Z 310DEG 21KT 3768 9165 

$$

Schaumann

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:40 PM CDT	Special Weather Statement	SGF	Morgan	35 min
Jul 31, 4:07 PM CDT	Severe Thunderstorm Warning	SGF	St. Clair	38 min
Jul 31, 4:12 PM CDT	Severe Thunderstorm Warning	SGF	Camden	33 min
Jul 31, 4:48 PM CDT	Special Weather Statement	SGF	Pulaski	27 min
Jul 31, 4:53 PM CDT	Special Weather Statement	SGF	Dent	22 min
Jul 31, 6:24 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Dade	18 min
Jul 31, 6:38 PM CDT	Special Weather Statement	SGF	Jasper	22 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.