Alert archive / Missouri / Tornado Warnings in 2020

Tornado Warning 12, NWS Springfield, MO

April 28, 20204 counties in Missouri

NWS Springfield, MO issued this tornado warning at Apr 28, 2020, 6:38 PM CDT for 4 counties in Missouri. It was in force for 37 min. 4 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
Apr 28, 2020, 6:38 PM CDT (23:38 UTC)
Expired
Apr 28, 2020, 7:15 PM CDT
In force
37 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Barton County, MO, Dade County, MO, Jasper County, MO, Lawrence County, MO

The radar

The Springfield radar (KSGF), 42 km from the middle of the area, began a volume at 23:37 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
Apr 28, 6:42 PM CDTTSTM WND GST 603 S Pennsboro, MOHWY 39 ON DADE/LAWRENCE COUNTY LINE.
Apr 28, 6:43 PM CDTTSTM WND DMGFreistatt, MO4 INCH DIAMETER TREE DOWN ON POWER LINE.
Apr 28, 6:46 PM CDTTSTM WND DMG1 N Miller, MOSEVERAL TREES DOWN IN THE 3100 BLOCK, AND A POWER LINE DOWN CAUSING A SMALL FIRE IN THE MILLER RURAL FIRE AREA.
Apr 28, 7:00 PM CDTTSTM WND DMG4 Ssw Ash Grove, MOSIDING AND SHINGLE DAMAGE, AND 10 INCH DIAMETER BRANCHES DOWN IN LAWRENCEBURG.

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
Apr 28, 3:18 PM CDTTornado WatchSPC8 hr
Apr 28, 3:51 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 38 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 2020-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2020-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 369 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
55 J/kg
Mixed-layer CIN
-231 J/kg
Mixed-layer LCL
1021 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
369 m²/s²
0-3 km storm-relative helicity
342 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

944 
WFUS53 KSGF 282338
TORSGF
MOC011-057-097-109-290015-
/O.NEW.KSGF.TO.W.0012.200428T2338Z-200429T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
638 PM CDT Tue Apr 28 2020

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Southeastern Barton County in southwestern Missouri...
  Lawrence County in southwestern Missouri...
  Northeastern Jasper County in southwestern Missouri...
  Dade County in southwestern Missouri...

* Until 715 PM CDT.
    
* At 638 PM CDT, severe thunderstorms capable of producing a tornado
  were located along a line extending from 6 miles northeast of
  Jasper to 6 miles northwest of Miller to 6 miles north of Pierce
  City, moving east at 60 mph.

  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...
  Stockton Lake...                  Mount Vernon...
  Marionville...                    Greenfield...
  Lockwood...                       Golden City...
  Miller...                         Everton...
  Dadeville...                      Stotts City...
  Halltown...                       Freistatt...
  South Greenfield...               Hoberg...
  Chesapeake...                     Red Oak...
  Dudenville...                     Pennsboro...
  Meinert...                        Boston...

This includes the following highways...
 Interstate 44 between mile markers 33 and 58.
 Interstate 49 between mile markers 59 and 61.

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 3724 9405 3742 9435 3749 9362 3728 9363
      3728 9361 3699 9361 3699 9406
TIME...MOT...LOC 2338Z 268DEG 51KT 3739 9421 3726 9395 3704 9396 

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

$$

Wise
2 follow-up statements
665 
WWUS53 KSGF 282359
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
659 PM CDT Tue Apr 28 2020

MOC011-097-290009-
/O.CAN.KSGF.TO.W.0012.000000T0000Z-200429T0015Z/
Barton MO-Jasper MO-
659 PM CDT Tue Apr 28 2020

...THE TORNADO WARNING FOR SOUTHEASTERN BARTON AND NORTHEASTERN
JASPER COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

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

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
southwestern Missouri.

LAT...LON 3729 9405 3730 9408 3744 9408 3749 9362
      3728 9363 3728 9361 3721 9361 3720 9405
TIME...MOT...LOC 2359Z 279DEG 48KT 3734 9388 

$$

MOC057-109-290015-
/O.CON.KSGF.TO.W.0012.000000T0000Z-200429T0015Z/
Lawrence MO-Dade MO-
659 PM CDT Tue Apr 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTHERN
LAWRENCE AND DADE COUNTIES...
    
At 659 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lockwood, or near Greenfield, moving east at 50 mph.

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...
Stockton Lake...                  Greenfield...
Lockwood...                       Miller...
Everton...                        Dadeville...
South Greenfield...               Red Oak...
Pennsboro...                      Meinert...

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 3729 9405 3730 9408 3744 9408 3749 9362
      3728 9363 3728 9361 3721 9361 3720 9405
TIME...MOT...LOC 2359Z 279DEG 48KT 3734 9388 

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

$$

Wise
664 
WWUS53 KSGF 290010
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
710 PM CDT Tue Apr 28 2020

MOC057-109-290020-
/O.EXP.KSGF.TO.W.0012.000000T0000Z-200429T0015Z/
Lawrence MO-Dade MO-
710 PM CDT Tue Apr 28 2020

...THE TORNADO WARNING FOR NORTHERN LAWRENCE AND DADE COUNTIES WILL
EXPIRE AT 715 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

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

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
southwestern Missouri.

LAT...LON 3729 9405 3730 9408 3744 9408 3749 9362
      3728 9363 3728 9361 3721 9361 3720 9405
TIME...MOT...LOC 0010Z 268DEG 51KT 3734 9373 

$$

Wise

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 4:40 PM CDTSpecial Weather StatementSGFBenton50 min
Apr 28, 4:48 PM CDTSevere Thunderstorm WarningSGFBenton31 min
Apr 28, 5:42 PM CDTSpecial Weather StatementSGFBenton48 min
Apr 28, 5:52 PM CDTSevere Thunderstorm WarningSGFBarton, Jasper, Newton38 min
Apr 28, 5:55 PM CDTSevere Thunderstorm WarningSGFBenton, Camden, Morgan22 min
Apr 28, 5:57 PM CDTTornado WarningSGFBarton, Jasper33 min
Apr 28, 6:09 PM CDTSevere Thunderstorm WarningSGFNewton51 min
Apr 28, 6:16 PM CDTSpecial Weather StatementSGFCamden, Hickory44 min
Apr 28, 6:23 PM CDTSevere Thunderstorm WarningSGFBarry, Barton, Dade, Jasper, Lawrence, Newton52 min
Apr 28, 6:46 PM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Hickory, Laclede30 min
Apr 28, 6:50 PM CDTSevere Thunderstorm WarningSGFBarry, Christian, Dade, Greene, Lawrence, Stone55 min
Apr 28, 6:51 PM CDTSpecial Weather StatementSGFPulaski39 min
Apr 28, 6:56 PM CDTSevere Thunderstorm WarningSGFLaclede, Pulaski49 min

Nearby

Tornado Warnings in Missouri, 2020Every tornado warning in 2020Tornadoes in 2020

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.