Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 52, NWS Memphis, TN

July 31, 2021Dunklin County, Pemiscot County, Missouri; Mississippi County, Arkansas

NWS Memphis, TN issued this tornado warning at Jul 31, 2021, 9:06 PM CDT for Dunklin County, Pemiscot County, Missouri; Mississippi County, Arkansas. It was in force for 24 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
Jul 31, 2021, 9:06 PM CDT (02:06 UTC)
Expired
Jul 31, 2021, 9:30 PM CDT
In force
24 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Mississippi County, AR, Dunklin County, MO, Pemiscot County, MO

The radar

The Memphis radar (KNQA), 71 km from the middle of the area, began a volume at 02:07 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
Jul 31, 9:15 PM CDTTSTM WND DMGHolland, MONUMEROUS TREES DOWN ACROSS SOUTHERN PART OF PEMISCOT COUNTY.

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, 2.1 hours before the alert went out and 129 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 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2334 joules per kilogram.LCLEL10008507005003002001001 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 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
2334 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1693 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

780 
WFUS54 KMEG 010206
TORMEG
ARC093-MOC069-155-010230-
/O.NEW.KMEG.TO.W.0052.210801T0206Z-210801T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
906 PM CDT Sat Jul 31 2021

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Northeastern Mississippi County in eastern Arkansas...
  Southwestern Pemiscot County in southeastern Missouri...
  Southeastern Dunklin County in southeastern Missouri...

* Until 930 PM CDT.
    
* At 906 PM CDT, doppler radar indicated a severe thunderstorm
  producing a tornado was located near Gosnell, moving southeast 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...
  Blytheville, Gosnell, Hornersville, Holland, Hickman, Calumet,
  Barfield, Burton, Number Nine, Armorel, Woodland Corner, Huffman,
  Yarbro, Rives, West Hermondale, Cotton Plant, Samford, Channel,
  Gilbert and Hermondale.

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 3601 8974 3599 8972 3597 8972 3595 8970
      3581 8985 3603 9013 3612 9002
TIME...MOT...LOC 0206Z 303DEG 31KT 3602 9002 

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

$$
1 follow-up statement
695 
WWUS54 KMEG 010223
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
923 PM CDT Sat Jul 31 2021

ARC093-MOC069-155-010232-
/O.EXP.KMEG.TO.W.0052.000000T0000Z-210801T0230Z/
Mississippi AR-Pemiscot MO-Dunklin MO-
923 PM CDT Sat Jul 31 2021

...THE TORNADO WARNING FOR NORTHEASTERN MISSISSIPPI...SOUTHWESTERN
PEMISCOT AND SOUTHEASTERN DUNKLIN COUNTIES WILL EXPIRE AT 930 PM
CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Warning still remains in effect, with wind 
gusts in excess of 60 mph likely.

LAT...LON 3601 8974 3599 8972 3597 8972 3595 8970
      3581 8985 3603 9013 3612 9002
TIME...MOT...LOC 0222Z 303DEG 31KT 3595 8989 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 7:45 PM CDTSpecial Weather StatementMEGPemiscot15 min
Jul 31, 8:35 PM CDTSpecial Weather StatementMEGDunklin25 min
Jul 31, 8:56 PM CDTSpecial Weather StatementMEGDunklin34 min
Jul 31, 8:57 PM CDTSevere Thunderstorm WarningMEGDunklin, Pemiscot48 min
Jul 31, 9:00 PM CDTSpecial Weather StatementMEGPemiscot30 min
Jul 31, 9:26 PM CDTSevere Thunderstorm WarningMEGPemiscot49 min
Jul 31, 8:07 PM CDTSpecial Weather StatementMEGClay38 min

Nearby

Tornado Warnings in Missouri, 2021Tornado Warnings in Arkansas, 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.