Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 104, NWS Springfield, MO

July 10, 2021Webster County, Wright County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 10, 2021, 12:03 PM CDT for Webster County, Wright County, Missouri. It was in force for 41 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 10, 2021, 12:03 PM CDT (17:03 UTC)
Expired
Jul 10, 2021, 12:44 PM CDT
In force
41 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 62 km from the middle of the area, began a volume at 17:02 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, 5.1 hours before the alert went out and 107 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 12:00Z on 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 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 12:00Z on 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
917 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
703 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

769 
WUUS53 KSGF 101703
SVRSGF
MOC225-229-101800-
/O.NEW.KSGF.SV.W.0104.210710T1703Z-210710T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1203 PM CDT Sat Jul 10 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northern Webster County in southwestern Missouri...
  Wright County in southwestern Missouri...

* Until 100 PM CDT.

* At 1202 PM CDT, a severe thunderstorm was located over Niangua, or
  near Marshfield, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marshfield...                     Mountain Grove...
  Dawson...                         Norwood...
  Hartville...                      Niangua...
  Duncan...                         Manes...
  Rader...                          Graff...
  Grovespring...                    Odin...

This includes Interstate 44 between mile markers 94 and 109.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3731 9305 3749 9297 3747 9225 3706 9225
TIME...MOT...LOC 1702Z 287DEG 42KT 3739 9280 

HAIL...<.75IN
WIND...60MPH
 
$$

Angle
4 follow-up statements
785 
WWUS53 KSGF 101714
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1214 PM CDT Sat Jul 10 2021

MOC225-229-101800-
/O.CON.KSGF.SV.W.0104.000000T0000Z-210710T1800Z/
Webster MO-Wright MO-
1214 PM CDT Sat Jul 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR NORTHEASTERN WEBSTER AND WRIGHT COUNTIES...

At 1213 PM CDT, a severe thunderstorm was located 9 miles northwest
of Hartville, or 15 miles east of Marshfield, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Mountain Grove...                 Dawson...
Norwood...                        Hartville...
Duncan...                         Manes...
Rader...                          Graff...
Grovespring...                    Odin...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3724 9282 3749 9280 3747 9225 3706 9225
TIME...MOT...LOC 1713Z 287DEG 42KT 3735 9264 

HAIL...<.75IN
WIND...60MPH
 
$$

Angle
859 
WWUS53 KSGF 101722
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1222 PM CDT Sat Jul 10 2021

MOC225-101731-
/O.CAN.KSGF.SV.W.0104.000000T0000Z-210710T1800Z/
Webster MO-
1222 PM CDT Sat Jul 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WEBSTER 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 3720 9268 3748 9269 3747 9225 3706 9225
TIME...MOT...LOC 1721Z 287DEG 42KT 3732 9252 

$$

MOC229-101800-
/O.CON.KSGF.SV.W.0104.000000T0000Z-210710T1800Z/
Wright MO-
1222 PM CDT Sat Jul 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR WRIGHT COUNTY...

At 1221 PM CDT, a severe thunderstorm was located near Hartville, or
19 miles northwest of Mountain Grove, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Mountain Grove...                 Dawson...
Norwood...                        Hartville...
Manes...                          Graff...
Grovespring...                    Odin...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3720 9268 3748 9269 3747 9225 3706 9225
TIME...MOT...LOC 1721Z 287DEG 42KT 3732 9252 

HAIL...<.75IN
WIND...60MPH
 
$$

Angle
316 
WWUS53 KSGF 101731
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1231 PM CDT Sat Jul 10 2021

MOC229-101800-
/O.CON.KSGF.SV.W.0104.000000T0000Z-210710T1800Z/
Wright MO-
1231 PM CDT Sat Jul 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR EASTERN WRIGHT COUNTY...

At 1231 PM CDT, a severe thunderstorm was located 7 miles east of
Hartville, or 11 miles northwest of Mountain Grove, moving east at 50
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Mountain Grove...                 Dawson...
Norwood...                        Hartville...
Manes...                          Graff...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3715 9254 3748 9251 3747 9225 3706 9225
TIME...MOT...LOC 1731Z 287DEG 42KT 3728 9237 

HAIL...<.75IN
WIND...60MPH
 
$$

Angle
822 
WWUS53 KSGF 101744
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1244 PM CDT Sat Jul 10 2021

MOC229-101753-
/O.CAN.KSGF.SV.W.0104.000000T0000Z-210710T1800Z/
Wright MO-
1244 PM CDT Sat Jul 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WRIGHT COUNTY IS
CANCELLED...
                
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 has been cancelled.  However gusty winds near 
50 mph and moderate to heavy rain are still possible with this 
thunderstorm.

LAT...LON 3715 9254 3748 9251 3747 9225 3706 9225
TIME...MOT...LOC 1742Z 287DEG 42KT 3724 9219 

$$

Angle

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:16 PM CDTSevere Thunderstorm WarningSGFHowell, Texas42 min
Jul 9, 7:29 PM CDTAreal Flood AdvisorySGFDouglas, Howell, Shannon, Texas5 hr
Jul 9, 7:54 PM CDTFlash Flood WarningSGFHowell3 hr
Jul 9, 7:56 PM CDTSpecial Weather StatementSGFHowell49 min
Jul 9, 8:09 PM CDTSpecial Weather StatementSGFHowell51 min
Jul 9, 8:15 PM CDTSevere Thunderstorm WarningSGFHowell28 min
Jul 10, 3:45 AM CDTSpecial Weather StatementSGFOregon30 min
Jul 10, 8:53 AM CDTSpecial Weather StatementSGFVernon52 min
Jul 10, 11:51 AM CDTSpecial Weather StatementSGFWebster39 min
Jul 10, 12:35 PM CDTSpecial Weather StatementSGFTexas40 min
Jul 10, 1:03 PM CDTSpecial Weather StatementSGFShannon57 min
Jul 10, 1:22 PM CDTSpecial Weather StatementSGFHowell53 min
Jul 10, 3:31 PM CDTSpecial Weather StatementSGFBenton, Camden, Hickory44 min
Jul 10, 3:56 PM CDTFlash Flood WarningSGFBenton, Camden, Hickory, St. Clair6 hr
Jul 10, 4:09 PM CDTRiver Flood WarningSGFSt. Clair6 days
Jul 10, 6:55 PM CDTSpecial Weather StatementSGFJasper50 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.