Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 54, NWS Memphis, TN

August 8, 2021Dunklin County, Missouri

NWS Memphis, TN issued this tornado warning at Aug 8, 2021, 7:41 PM CDT for Dunklin County, Missouri. It was in force for 34 min. 1 report 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 8, 2021, 7:41 PM CDT (00:41 UTC)
Expired
Aug 8, 2021, 8:15 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Dunklin County, MO

The radar

The Paducah radar (KPAH), 127 km from the middle of the area, began a volume at 00:40 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 8, 8:05 PM CDTTSTM WND DMG2 Wsw Malden, MOSIDING RIPPED OFF A HOUSE NEAR MALDEN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.7 hours before the alert went out and 196 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, Little Rock, AR at 00:00Z on 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 809 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, Little Rock, AR at 00:00Z on 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
809 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1677 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

612 
WFUS54 KMEG 090041
TORMEG
MOC069-090115-
/O.NEW.KMEG.TO.W.0054.210809T0041Z-210809T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
741 PM CDT Sun Aug 8 2021

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northeastern Dunklin County in southeastern Missouri...

* Until 815 PM CDT.

* At 740 PM CDT, a severe thunderstorm producing a tornado was
  located near Glennonville, or 8 miles west of Malden, moving east
  at 20 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported funnel cloud.

  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.

* This dangerous storm will be near...
  Malden and Malden around 805 PM CDT.

Other locations impacted by this tornadic thunderstorm include Brian,
Valley Ridge, Townley, Providence, McGuires and Morris State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3663 8996 3660 8996 3655 8995 3653 8996
      3649 8996 3659 9018 3660 9017 3660 9016
      3661 9017 3662 9016 3661 9016 3662 9015
      3663 9015
TIME...MOT...LOC 0040Z 283DEG 19KT 3662 9012 

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

$$

MJ
3 follow-up statements
365 
WWUS54 KMEG 090054
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
754 PM CDT Sun Aug 8 2021

MOC069-090115-
/O.CON.KMEG.TO.W.0054.000000T0000Z-210809T0115Z/
Dunklin MO-
754 PM CDT Sun Aug 8 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN DUNKLIN COUNTY...
        
At 753 PM CDT, a severe thunderstorm producing a tornado was located
7 miles west of Malden, moving east at 20 mph.

HAZARD...Tornado, quarter size hail, and 60 mph wind gusts.

SOURCE...Weather spotters reported a funnel cloud.

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.

This dangerous storm will be near...
  Malden and Malden around 810 PM CDT.

Other locations impacted by this tornadic thunderstorm include Brian,
Valley Ridge, Townley, Providence, Morris State Park and McGuires.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3663 8996 3660 8996 3655 8995 3653 8996
      3649 8996 3658 9014 3662 9015 3663 9015
TIME...MOT...LOC 0053Z 285DEG 17KT 3660 9006 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

MJ
329 
WWUS54 KMEG 090105
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
805 PM CDT Sun Aug 8 2021

MOC069-090115-
/O.CON.KMEG.TO.W.0054.000000T0000Z-210809T0115Z/
Dunklin MO-
805 PM CDT Sun Aug 8 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN DUNKLIN COUNTY...
    
At 805 PM CDT, a severe thunderstorm producing a tornado was located
over Malden, moving east at 20 mph.

HAZARD...Tornado, quarter size hail, and 60 mph wind gusts.

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.

This tornadic thunderstorm will remain over mainly rural areas of
northeastern Dunklin County, including the following locations...
Townley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3663 8996 3660 8996 3655 8995 3653 8996
      3657 9007 3663 9006
TIME...MOT...LOC 0105Z 283DEG 19KT 3659 8998 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

MJ
937 
WWUS54 KMEG 090114
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
814 PM CDT Sun Aug 8 2021

MOC069-090124-
/O.EXP.KMEG.TO.W.0054.000000T0000Z-210809T0115Z/
Dunklin MO-
814 PM CDT Sun Aug 8 2021

...THE TORNADO WARNING FOR NORTHEASTERN DUNKLIN COUNTY WILL EXPIRE AT
815 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3663 8996 3660 8996 3655 8995 3653 8996
      3657 9007 3663 9006
TIME...MOT...LOC 0114Z 283DEG 19KT 3658 8993 

$$

MJ

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 7:30 PM CDTSpecial Weather StatementMEGStoddard45 min
Aug 8, 8:17 PM CDTSpecial Weather StatementMEGStoddard28 min

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.