Alert archive / Tennessee / Tornado Warnings in 2018

Tornado Warning 7, NWS Memphis, TN

February 24, 2018Dyer County, Lake County, Obion County, Tennessee; Pemiscot County, Missouri

NWS Memphis, TN issued this tornado warning at Feb 24, 2018, 6:30 PM CST for Dyer County, Lake County, Obion County, Tennessee; Pemiscot County, Missouri. It was in force for 45 min. 3 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
Feb 24, 2018, 6:30 PM CST (00:30 UTC)
Expired
Feb 24, 2018, 7:15 PM CST
In force
45 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Pemiscot County, MO, Dyer County, TN, Lake County, TN, Obion County, TN

The radar

The Paducah radar (KPAH), 93 km from the middle of the area, began a volume at 00:28 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
Feb 24, 7:02 PM CSTTSTM WND DMG3 Ne Union City, TNSEVERAL HOMES DAMAGED AND POWER LINES DOWN. TIME ESTIMATED BY RADAR.
Feb 24, 7:02 PM CSTTORNADO3 Ne Union City, TN*** 3 INJ *** POSSIBLE TORNADO. 10 PEOPLE WERE RESCUED FROM SEVERAL DAMAGED STRUCTURES AROUND THE AREA. THREE INDIVIDUALS WERE TRANSPORTED TO HOSPITAL WITH UNKNOWN INJURIES.
Feb 24, 7:10 PM CSTTSTM WND DMG3 Sw Trimble, TNMULTIPLE TREES DOWN ACROSS ROAD BETWEEN NEWBERN AND TRIMBLE.

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
Feb 24, 3:16 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.5 hours before the alert went out and 229 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, Nashville Metro, TN at 00:00Z on 2018-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 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, Nashville Metro, TN at 00:00Z on 2018-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 235 square meters per square second.1939587897117Sfc1 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
78 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
235 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted.

525 
WFUS54 KMEG 250030
TORMEG
MOC155-TNC045-095-131-250115-
/O.NEW.KMEG.TO.W.0007.180225T0030Z-180225T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
630 PM CST SAT FEB 24 2018

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Southeastern Pemiscot County in southeastern Missouri...
  Northern Dyer County in northwestern Tennessee...
  Obion County in northwestern Tennessee...
  Southern Lake County in northwestern Tennessee...

* Until 715 PM CST
    
* At 630 PM CST, a severe thunderstorm producing a tornado was
  located over Caruthersville, moving east at 55 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. 

* This dangerous storm will be near...
  Cottonwood Grove and Miston around 635 PM CST. 
  Ridgely around 640 PM CST. 
  Cloverdale around 650 PM CST. 
  Obion around 655 PM CST. 
  Troy around 705 PM CST. 

Other locations impacted by this tornadic thunderstorm include Mason
Hall, Cat Corner, Wynnburg, Glass, Locust Grove, Hathaway, Shaffner,
Roneys Store, Elbridge and Trimble.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3641 8894 3641 8895 3622 8896 3620 8905
      3620 8915 3618 8916 3608 8968 3626 8973
      3650 8893
TIME...MOT...LOC 0030Z 252DEG 48KT 3619 8962 

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

$$
1 follow-up statement
772 
WWUS54 KMEG 250047
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
647 PM CST SAT FEB 24 2018

MOC155-TNC095-250057-
/O.CAN.KMEG.TO.W.0007.000000T0000Z-180225T0115Z/
Pemiscot MO-Lake TN-
647 PM CST SAT FEB 24 2018

...THE TORNADO WARNING FOR SOUTHEASTERN PEMISCOT AND SOUTHERN LAKE
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 900 PM CST for northwestern
Tennessee.

LAT...LON 3641 8894 3641 8895 3622 8896 3620 8904
      3620 8915 3618 8916 3614 8937 3631 8941
      3636 8940 3650 8893
TIME...MOT...LOC 0047Z 250DEG 52KT 3628 8932 

$$

TNC045-131-250115-
/O.CON.KMEG.TO.W.0007.000000T0000Z-180225T0115Z/
Dyer TN-Obion TN-
647 PM CST SAT FEB 24 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CST FOR
NORTHEASTERN DYER AND OBION COUNTIES...
    
At 647 PM CST, a severe thunderstorm producing a tornado was located
near Cloverdale, or 8 miles southeast of Reelfoot Lake State Park,
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. 

This dangerous storm will be near...
  Obion around 655 PM CST. 
  Troy around 700 PM CST. 
  Union City around 705 PM CST. 

Other locations impacted by this tornadic thunderstorm include Sharps
Ferry, Mason Hall, Poplar Ridge, Glass, Gibbs, Lane, Moffatt, Locust
Grove, Shaffner and Roneys Store.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3641 8894 3641 8895 3622 8896 3620 8904
      3620 8915 3618 8916 3614 8937 3631 8941
      3636 8940 3650 8893
TIME...MOT...LOC 0047Z 250DEG 52KT 3628 8932 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 6:06 PM CSTTornado WarningMEGLauderdale27 min
Feb 24, 6:13 PM CSTFlash Flood WarningMEGShelby6 hr
Feb 24, 6:15 PM CSTSevere Thunderstorm WarningMEGShelby, Tipton45 min
Feb 24, 6:22 PM CSTSevere Thunderstorm WarningMEGDyer, Lake, Lauderdale, Obion38 min
Feb 24, 6:32 PM CSTSevere Thunderstorm WarningMEGHaywood, Lauderdale28 min
Feb 24, 6:42 PM CSTSevere Thunderstorm WarningMEGHaywood, Lauderdale, Tipton48 min
Feb 24, 6:45 PM CSTSevere Thunderstorm WarningMEGCrockett, Dyer, Gibson, Haywood, Lauderdale, Obion and 1 more45 min
Feb 24, 6:55 PM CSTSevere Thunderstorm WarningMEGShelby, Tipton50 min
Feb 24, 7:03 PM CSTTornado Warning Tornado observedConsiderable damage threatMEGObion, Weakley42 min
Feb 24, 7:08 PM CSTSevere Thunderstorm WarningMEGCrockett, Haywood, Madison, Tipton52 min
Feb 24, 7:10 PM CSTFlash Flood WarningMEGCrockett, Gibson, Haywood, Lauderdale, Madison4 hr
Feb 24, 7:17 PM CSTFlash Flood WarningMEGBenton, Carroll, Henry, Weakley6 hr
Feb 24, 7:20 PM CSTTornado WarningMEGCarroll, Gibson, Weakley40 min
Feb 24, 7:26 PM CSTSevere Thunderstorm WarningMEGFayette, Haywood, Shelby, Tipton34 min
Feb 24, 7:27 PM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Crockett, Decatur, Gibson, Henderson and 3 more48 min
Feb 24, 7:30 PM CSTTornado Warning Tornado observedMEGHenry, Weakley30 min
Feb 24, 7:39 PM CSTTornado WarningMEGCarroll, Henderson, Madison51 min
Feb 24, 7:43 PM CSTTornado WarningMEGBenton, Carroll, Henry, Weakley47 min
Feb 24, 7:48 PM CSTFlash Flood WarningMEGFayette, Hardeman6 hr
Feb 24, 7:57 PM CSTSevere Thunderstorm WarningMEGChester, Crockett, Haywood, Madison48 min
Feb 24, 8:00 PM CSTAreal Flood WarningMEGLauderdale3 hr
Feb 24, 8:03 PM CSTFlash Flood WarningMEGChester, Decatur, Hardin, Henderson, McNairy3 hr
Feb 24, 8:09 PM CSTSpecial Weather StatementMEGFayette, Hardeman51 min
Feb 24, 8:09 PM CSTSevere Thunderstorm WarningMEGBenton, Henry30 min
Feb 24, 9:36 PM CSTTornado WarningMEGMcNairy39 min

Nearby

Tornado Warnings in Tennessee, 2018Tornado 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.