Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 31, NWS Springfield, MO

August 19, 2018Barton County, Vernon County, Missouri

NWS Springfield, MO issued this tornado warning at Aug 19, 2018, 5:35 PM CDT for Barton County, Vernon County, Missouri. It was in force for 25 min. 5 reports 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
Aug 19, 2018, 5:35 PM CDT (22:35 UTC)
Expired
Aug 19, 2018, 6:00 PM CDT
In force
25 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Barton County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 83 km from the middle of the area, began a volume at 22:39 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

TimeReportWhereRemark
Aug 19, 5:40 PM CDTTORNADOVerdella, MOCORRECTS PREVIOUS TSTM WND GST REPORT FROM VERDELLA TO A TORNADO REPORT. NWS STORM SURVEY REPORTED A BRIEF EF-0 TORNADO TOUCHDOWN THAT BLEW OVER A CENTER-PIVOT IRRIGATION SYSTEM IN A FARM FIELD OFF OF WEST HWY V IN VERDELLA. TIME ESTIMATED FROM RADAR.
Aug 19, 5:47 PM CDTTSTM WND GST 70Verdella, MONWS STORM SURVEY REPORTED A CENTER-PIVOT IRRIGATION SYSTEM BLOWN OVER IN A FARM FIELD OFF OF WEST HWY V IN VERDELLA. TIME ESTIMATED FROM RADAR.
Aug 19, 5:54 PM CDTTORNADO3 Se Sheldon, MOA BRIEF EF-0 TORNADO TOUCHED DOWN NEAR THE INTERSECTION OF NE 90TH ROAD AND NE 20TH LANE. MAX WINDS ESTIMATED AT 61 MPH, WIDTH OF 25 YARDS, AND A PATH LENGTH OF 0.1 MILES. THERE WERE LARGE BRANCHES BROKEN. STARTED AT 5:54 PM AND ENDED AROUND 5:55 PM. TIME ESTI
Aug 19, 5:57 PM CDTTORNADO2 Ese Sheldon, MOEF-1 TORNADO STARTING 1.5 SE OF SHELDON, MO WITH DAMAGE TO FARM OUTBUILDINGS. THE TORNADO CONTINUED ON THE GROUND FOR 2 MINUTES TO THE NORTHEAST UPROOTING TREES ALONG THE TORNADO PATH BEFORE LIFTING 1 E OF SHELDON, MO. MAX WINDS ESTIMATED AT 95 MPH, WIDTH OF 7
Aug 19, 5:59 PM CDTTORNADO3 Nnw Milford, MOA BRIEF EF-0 TORNADO TOUCHED DOWN NEAR HWY N MO-A. THE TORNADO WAS SHORT-LIVED LASTING NEARLY 2 MINUTES BEFORE ENDING NEAR THE INTERSECTION OF HWY N MO-A AND NE 90TH ROAD. MAX WINDS ESTIMATED AT 74 MPH, WIDTH OF 25 YARDS, AND A PATH LENGTH OF 0.16 MILES. THERE

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.

IssuedProductOfficeLasted
Aug 19, 4:07 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.6 hours before the alert went out and 86 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 2018-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2018-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1069 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

621 
WFUS53 KSGF 192235
TORSGF
MOC011-217-192300-
/O.NEW.KSGF.TO.W.0031.180819T2235Z-180819T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
535 PM CDT SUN AUG 19 2018

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Barton County in southwestern Missouri...
  Southeastern Vernon County in west central Missouri...

* Until 600 PM CDT.
    
* At 534 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located near Lamar, moving east at 25 mph. Another 
  possible tornado near Verdella.

  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...
  Lamar...                          Golden City...
  Liberal...                        Sheldon...
  Lamar Heights...                  Irwin...
  Milford...                        Oakton...
  Iantha...                         Verdella...
  Kenoma...                         Hannon...
  Boston...                         

This includes Interstate 49 between mile markers 57 and 82.
 
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 3779 9414 3763 9407 3735 9409 3736 9435
      3764 9458
TIME...MOT...LOC 2234Z 249DEG 23KT 3745 9431 

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

$$

Burchfield
1 follow-up statement
984 
WWUS53 KSGF 192250
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
550 PM CDT SUN AUG 19 2018

MOC011-217-192300-
/O.CON.KSGF.TO.W.0031.000000T0000Z-180819T2300Z/
Barton MO-Vernon MO-
550 PM CDT SUN AUG 19 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN BARTON AND SOUTHEASTERN VERNON COUNTIES...
    
At 550 PM CDT, a severe thunderstorm capable of producing a tornado 
was located near Lamar, moving northeast at 30 mph. Another possible 
tornado was located just northeast of Verdella.

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...
Lamar...                          Sheldon...
Irwin...                          Milford...

This includes Interstate 49 between mile markers 68 and 82.
 
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 3779 9414 3763 9407 3745 9408 3750 9427
      3760 9443 3767 9449
TIME...MOT...LOC 2250Z 212DEG 26KT 3757 9424 

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

$$

Burchfield

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 3:11 PM CDTTornado WarningSGFChristian, Webster34 min
Aug 19, 3:45 PM CDTTornado WarningSGFWebster, Wright22 min
Aug 19, 4:22 PM CDTSevere Thunderstorm WarningSGFBarton, Jasper, Newton53 min
Aug 19, 4:40 PM CDTTornado WarningSGFBarton35 min
Aug 19, 5:16 PM CDTSevere Thunderstorm WarningSGFBarton, Jasper, McDonald, Newton44 min
Aug 19, 5:30 PM CDTTornado WarningSGFNewton30 min
Aug 19, 5:32 PM CDTTornado WarningSGFJasper, Lawrence43 min
Aug 19, 5:54 PM CDTTornado WarningSGFBarry, McDonald, Newton37 min
Aug 19, 5:58 PM CDTTornado Warning Tornado observedSGFBarton, Cedar, Vernon47 min
Aug 19, 6:05 PM CDTSevere Thunderstorm WarningSGFBarry, Barton, Cedar, Dade, Jasper, Lawrence and 3 more55 min
Aug 19, 6:09 PM CDTTornado WarningSGFBarry36 min
Aug 19, 6:19 PM CDTTornado WarningSGFDade, Lawrence26 min
Aug 19, 6:40 PM CDTSevere Thunderstorm WarningSGFChristian, Greene, Polk, Stone50 min
Aug 19, 6:44 PM CDTTornado Warning Tornado observedSGFBarry, Christian, Lawrence, Stone46 min
Aug 19, 6:59 PM CDTSevere Thunderstorm WarningSGFCedar, Dade26 min

Nearby

Tornado Warnings in Missouri, 2018Every tornado warning in 2018Tornadoes in 2018

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.