Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 20, NWS Springfield, MO

April 28, 2021Douglas County, Ozark County, Missouri

NWS Springfield, MO issued this tornado warning at Apr 28, 2021, 10:58 AM CDT for Douglas County, Ozark County, Missouri. It was in force for 32 min. 2 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, 2021, 10:58 AM CDT (15:58 UTC)
Expired
Apr 28, 2021, 11:30 AM CDT
In force
32 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Douglas County, MO, Ozark County, MO

The radar

The Springfield radar (KSGF), 108 km from the middle of the area, began a volume at 15:59 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, 11:12 AM CDTTSTM WND DMG4 Ese Gentryville, MOBARN AND RESIDENCE DAMAGED VICINITY OF HIGHWAY 14 AND COUNTY ROAD 352 EAST OF GENTRYVILLE.
Apr 28, 11:14 AM CDTTORNADO2 Ese Gentryville, MONWS STORM SURVEY DETERMINED AN EF0 TORNADO WITH MAXIMUM WINDS ESTIMATED AT 85 MPH TOUCHED DOWN AT THIS LOCATION. THE MOST SIGNIFICANT DAMAGE WAS THE DESTRUCTION OF A THREE CAR GARAGE AND SEVERAL OUTBUILDINGS NEAR THE START OF THE PATH. PATH WIDTH WAS 100 YARDS

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, 9:33 AM CDTTornado WatchSPC4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.0 hours before the alert went out and 133 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 2021-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 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 2021-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939587897Sfc1 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
34 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

584 
WFUS53 KSGF 281558
TORSGF
MOC067-153-281630-
/O.NEW.KSGF.TO.W.0020.210428T1558Z-210428T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
1058 AM CDT Wed Apr 28 2021

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Northeastern Ozark County in southwestern Missouri...
  Southeastern Douglas County in southwestern Missouri...

* Until 1130 AM CDT.
    
* At 1058 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 12 miles north of Gainesville, or 17 miles
  southeast of Ava, moving northeast at 35 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...
  Dora...                           Rockbridge...
  Brixey...                         Drury...
  Gentryville...                    

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 3672 9255 3685 9254 3695 9245 3695 9209
      3680 9210 3679 9212 3678 9212 3671 9228
TIME...MOT...LOC 1558Z 225DEG 29KT 3679 9244 

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

$$

Perez
1 follow-up statement
556 
WWUS53 KSGF 281613
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1113 AM CDT Wed Apr 28 2021

MOC153-281623-
/O.CAN.KSGF.TO.W.0020.000000T0000Z-210428T1630Z/
Ozark MO-
1113 AM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTHEASTERN OZARK COUNTY 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 300 PM CDT for south central
and southwestern Missouri.

LAT...LON 3680 9245 3687 9243 3695 9239 3695 9209
      3680 9210
TIME...MOT...LOC 1613Z 224DEG 21KT 3681 9232 

$$

MOC067-281630-
/O.CON.KSGF.TO.W.0020.000000T0000Z-210428T1630Z/
Douglas MO-
1113 AM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT FOR
SOUTHEASTERN DOUGLAS COUNTY...
    
At 1113 AM CDT, a severe thunderstorm capable of producing a tornado
was located 15 miles north of Gainesville, or 21 miles southeast of
Ava, moving northeast at 25 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...
Drury...                          Gentryville...

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 3680 9245 3687 9243 3695 9239 3695 9209
      3680 9210
TIME...MOT...LOC 1613Z 224DEG 21KT 3681 9232 

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

$$

Perez

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 4:48 AM CDTSpecial Weather StatementSGFDade, Greene, Lawrence27 min
Apr 28, 8:01 AM CDTSevere Thunderstorm WarningSGFBarry44 min
Apr 28, 8:25 AM CDTFlash Flood WarningSGFBarry, McDonald6 hr
Apr 28, 8:27 AM CDTSevere Thunderstorm WarningSGFBarry33 min
Apr 28, 8:46 AM CDTFlash Flood WarningSGFBarry, Stone6 hr
Apr 28, 8:51 AM CDTSevere Thunderstorm WarningSGFStone39 min
Apr 28, 9:03 AM CDTTornado WarningSGFStone27 min
Apr 28, 9:14 AM CDTTornado WarningSGFTaney31 min
Apr 28, 9:18 AM CDTSevere Thunderstorm WarningSGFStone, Taney42 min
Apr 28, 9:33 AM CDTFlash Flood WarningSGFChristian, Taney6 hr
Apr 28, 9:37 AM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Ozark, Taney68 min
Apr 28, 9:43 AM CDTTornado WarningSGFChristian, Taney32 min
Apr 28, 9:55 AM CDTRiver Flood WarningSGFShannon44 hr
Apr 28, 9:55 AM CDTRiver Flood WarningSGFPulaski11 hr
Apr 28, 9:55 AM CDTRiver Flood WarningSGFStone10 hr
Apr 28, 9:55 AM CDTRiver Flood WarningSGFMcDonald23 hr
Apr 28, 9:55 AM CDTRiver Flood WarningSGFShannon51 hr
Apr 28, 10:14 AM CDTTornado WarningSGFChristian, Douglas, Webster31 min
Apr 28, 10:15 AM CDTFlash Flood WarningSGFDouglas, Ozark, Taney, Webster, Wright6 hr
Apr 28, 10:21 AM CDTSevere Thunderstorm WarningSGFDouglas, Howell, Ozark, Taney, Webster, Wright39 min
Apr 28, 10:24 AM CDTTornado WarningSGFOzark36 min
Apr 28, 10:44 AM CDTFlash Flood WarningSGFDouglas, Ozark6 hr
Apr 28, 11:12 AM CDTFlash Flood WarningSGFHowell, Texas6 hr
Apr 28, 11:27 AM CDTSevere Thunderstorm WarningSGFWright33 min
Apr 28, 11:29 AM CDTSevere Thunderstorm WarningSGFDouglas, Howell22 min
Apr 28, 11:49 AM CDTSevere Thunderstorm WarningSGFHowell, Oregon, Shannon41 min
Apr 28, 12:01 PM CDTFlash Flood WarningSGFDent, Laclede, Phelps, Pulaski, Texas, Wright6 hr
Apr 28, 12:02 PM CDTTornado WarningSGFHowell, Oregon, Shannon28 min
Apr 28, 12:07 PM CDTFlash Flood WarningSGFOregon, Shannon6 hr
Apr 28, 12:30 PM CDTSevere Thunderstorm WarningSGFOregon, Shannon30 min
Apr 28, 1:48 PM CDTFlash Flood WarningSGFMcDonald6 hr
Apr 28, 2:09 PM CDTFlash Flood WarningSGFMcDonald6 hr
Apr 28, 2:29 PM CDTAreal Flood WarningSGFBarry, Christian, Douglas, McDonald, Ozark, Stone and 2 more29 hr
Apr 28, 2:39 PM CDTAreal Flood WarningSGFDouglas, Ozark, Webster, Wright24 hr
Apr 28, 3:45 PM CDTAreal Flood WarningSGFDent, Howell, Oregon, Phelps, Pulaski, Shannon and 1 more24 hr

Nearby

Tornado Warnings in Missouri, 2021Every tornado warning in 2021Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.