Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 134, NWS Springfield, MO

October 2, 2021Webster County, Wright County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Oct 2, 2021, 2:46 PM CDT for Webster County, Wright County, Missouri. It was in force for 44 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 2, 2021, 2:46 PM CDT (19:46 UTC)
Expired
Oct 2, 2021, 3:30 PM CDT
In force
44 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), 67 km from the middle of the area, began a volume at 19:48 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, 7.8 hours before the alert went out and 110 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 2021-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 190 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 2021-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
190 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

804 
WUUS53 KSGF 021946
SVRSGF
MOC225-229-022030-
/O.NEW.KSGF.SV.W.0134.211002T1946Z-211002T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
246 PM CDT Sat Oct 2 2021

The National Weather Service in Springfield has issued a

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

* Until 330 PM CDT.

* At 246 PM CDT, a severe thunderstorm was located over Seymour, or
  13 miles southeast of Marshfield, moving northeast at 30 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Seymour...                        Hartville...
  Duncan...                         Diggins...
  Manes...                          Graff...
  Grovespring...                    Odin...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3720 9293 3748 9254 3747 9226 3730 9226
      3706 9275 3707 9282
TIME...MOT...LOC 1946Z 234DEG 27KT 3718 9279 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lindenberg
1 follow-up statement
941 
WWUS53 KSGF 022024
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
324 PM CDT Sat Oct 2 2021

MOC225-229-022034-
/O.EXP.KSGF.SV.W.0134.000000T0000Z-211002T2030Z/
Webster MO-Wright MO-
324 PM CDT Sat Oct 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WEBSTER AND
WRIGHT COUNTIES WILL EXPIRE AT 330 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 heavy rain
is still possible with this thunderstorm.

LAT...LON 3720 9293 3748 9254 3747 9226 3730 9226
      3706 9275 3707 9282
TIME...MOT...LOC 2024Z 234DEG 27KT 3734 9251 

$$

Lindenberg

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 8:47 PM CDTAreal Flood AdvisorySGFDouglas, Ozark6 hr
Oct 2, 6:28 AM CDTAreal Flood AdvisorySGFBarry, Lawrence5 hr
Oct 2, 10:49 AM CDTSpecial Weather StatementSGFMcDonald, Newton56 min
Oct 2, 11:44 AM CDTSpecial Weather StatementSGFLawrence, Newton61 min
Oct 2, 11:45 AM CDTSpecial Weather StatementSGFBarry60 min
Oct 2, 2:08 PM CDTSpecial Weather StatementSGFTaney67 min
Oct 2, 2:10 PM CDTSpecial Weather StatementSGFWebster, Wright65 min
Oct 2, 3:38 PM CDTSpecial Weather StatementSGFTexas67 min
Oct 2, 4:18 PM CDTSevere Thunderstorm WarningSGFHowell, Texas29 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.