Alert archive / Tennessee / Tornado Warnings in 2018

Tornado Warning 6, NWS Memphis, TN

February 24, 2018Lauderdale County, Tennessee; Mississippi County, Arkansas

NWS Memphis, TN issued this tornado warning at Feb 24, 2018, 6:06 PM CST for Lauderdale County, Tennessee; Mississippi County, Arkansas. It was in force for 27 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
Feb 24, 2018, 6:06 PM CST (00:06 UTC)
Expired
Feb 24, 2018, 6:33 PM CST
In force
27 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Mississippi County, AR, Lauderdale County, TN

The radar

The Memphis radar (KNQA), 50 km from the middle of the area, began a volume at 00:10 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, 6:14 PM CSTTORNADO3 W Osceola, ARROOF RIPPED OFF HOTEL, CONSIDERABLE DAMAGE. TIME ESTIMATED BY RADAR.
Feb 24, 6:19 PM CSTTSTM WND DMGKeiser, ARDAMAGE TO FIRST BAPTIST CHURCH IN KEISER, BLOWN TRANSFORMERS, POWER LINES AND TREES DOWN.

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, 0.1 hours before the alert went out and 277 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.

354 
WFUS54 KMEG 250006
TORMEG
ARC093-TNC097-250045-
/O.NEW.KMEG.TO.W.0006.180225T0006Z-180225T0045Z/

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

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Central Mississippi County in eastern Arkansas...
  Lauderdale County in southwestern Tennessee...

* Until 645 PM CST
    
* At 606 PM CST, a severe thunderstorm producing a tornado was
  located over Keiser, 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...
  Ripley, Osceola, Luxora, Wilson, Keiser, Fort Pillow State Park,
  Bassett, Marie, Fulton, Ashport, Ft Pillow, Henning, Etowah,
  Victoria, Porter Gap, Edith, Eastview, Dryhill, Evadale and Driver.

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 3581 8941 3577 8944 3575 8944 3574 8943
      3569 8945 3564 8969 3564 8973 3565 8973
      3565 8976 3564 8977 3564 8979 3560 8983
      3552 9017 3571 9023 3593 8954 3593 8951
      3592 8951 3595 8949 3595 8945
TIME...MOT...LOC 0006Z 250DEG 50KT 3564 9012 

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

$$
2 follow-up statements
416 
WWUS54 KMEG 250018
SVSMEG

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

ARC093-TNC097-250045-
/O.CON.KMEG.TO.W.0006.000000T0000Z-180225T0045Z/
Mississippi AR-Lauderdale TN-
618 PM CST SAT FEB 24 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CST FOR CENTRAL
MISSISSIPPI AND LAUDERDALE COUNTIES...
        
At 617 PM CST, a confirmed large and extremely dangerous tornado was
approaching Luxora, moving northeast at 50 mph.

This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...Damaging tornado. 

SOURCE...Radar confirmed tornado. 

IMPACT...You are in a life-threatening situation. Flying debris may 
         be deadly to those caught without shelter. Mobile homes 
         will be destroyed. Considerable damage to homes, 
         businesses, and vehicles is likely and complete destruction 
         is possible. 

Locations impacted include...
Ripley, Osceola, Luxora, Wilson, Keiser, Fort Pillow State Park,
Fulton, Ashport, Ft Pillow, Henning, Victoria, Porter Gap, Edith,
Dryhill, Driver, Double Bridges, O'Donnell Bend, Grider, Tomato and
Rosa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3581 8941 3577 8944 3575 8944 3574 8943
      3569 8945 3564 8969 3564 8973 3565 8973
      3565 8976 3564 8977 3564 8979 3560 8983
      3555 9005 3574 9013 3593 8954 3593 8951
      3592 8951 3595 8949 3595 8945
TIME...MOT...LOC 0017Z 239DEG 45KT 3573 9000 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...<.75IN

$$
664 
WWUS54 KMEG 250033
SVSMEG

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

ARC093-TNC097-250043-
/O.CAN.KMEG.TO.W.0006.000000T0000Z-180225T0045Z/
Mississippi AR-Lauderdale TN-
633 PM CST SAT FEB 24 2018

...THE TORNADO WARNING FOR CENTRAL MISSISSIPPI AND LAUDERDALE
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and is no longer producing a tornado. Therefore, the warning
has been cancelled.

A tornado watch remains in effect until 900 PM CST for eastern
Arkansas...and southwestern and northwestern Tennessee.

LAT...LON 3581 8941 3577 8944 3575 8944 3574 8943
      3569 8945 3564 8969 3564 8973 3565 8973
      3565 8976 3564 8977 3564 8979 3560 8983
      3555 9005 3574 9013 3593 8954 3593 8951
      3592 8951 3595 8949 3595 8945
TIME...MOT...LOC 0032Z 250DEG 50KT 3581 8974 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
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, 6:30 PM CSTTornado WarningMEGDyer, Lake, Obion45 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
Feb 24, 6:49 PM CSTFlash Flood WarningMEGPhillips6 hr

Nearby

Tornado Warnings in Tennessee, 2018Tornado Warnings in Arkansas, 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.