Alert archive / Arkansas / Tornado Warnings in 2018

Tornado Warning 3, NWS Memphis, TN

February 24, 20184 counties in Arkansas; Dunklin County, Missouri

NWS Memphis, TN issued this tornado warning at Feb 24, 2018, 5:15 PM CST for 4 counties in Arkansas; Dunklin County, Missouri. It was in force for 24 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, 5:15 PM CST (23:15 UTC)
Expired
Feb 24, 2018, 5:39 PM CST
In force
24 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Clay County, AR, Craighead County, AR, Greene County, AR, Lawrence County, AR, Dunklin County, MO

The radar

The Memphis radar (KNQA), 111 km from the middle of the area, began a volume at 23:14 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, 5:15 PM CSTTSTM WND DMGEgypt, ARTREES DOWN IN WESTERN CRAIGHEAD COUNTY...EGYPT AREA. CORRECTED TIME
Feb 24, 5:30 PM CSTTSTM WND DMGLorado, ARROOF BLOWN OFF OF BARN ON HIGHWAY 168. TIME ESTIMATED FROM RADAR.
Feb 24, 5:40 PM CSTTSTM WND DMGEgypt, ARTREES DOWN IN WESTERN CRAIGHEAD COUNTY, EGYPT AREA.

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

Little Rock, AR (KBYH), launched 12:00Z, 11.3 hours before the alert went out and 158 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 12:00Z on 2018-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 12:00Z on 2018-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
42 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
568 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

179 
WFUS54 KMEG 242315
TORMEG
ARC021-031-055-075-MOC069-250000-
/O.NEW.KMEG.TO.W.0003.180224T2315Z-180225T0000Z/

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

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Greene County in eastern Arkansas...
  Northwestern Craighead County in eastern Arkansas...
  Southeastern Lawrence County in eastern Arkansas...
  South central Clay County in eastern Arkansas...
  South central Dunklin County in southeastern Missouri...

* Until 600 PM CST
    
* At 515 PM CST, a severe thunderstorm producing a tornado was
  located near Minturn, or near Hoxie, 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...
  Paragould, Walnut Ridge, Hoxie, Bono, Rector, Marmaduke, Crowleys
  Ridge State Park, Lake Frierson State Park, Oak Grove Heights,
  Lafe, Egypt, Minturn, Evening Star, Walcott, Beech Grove, Fontaine,
  Sedgwick, Whiskerville, Stonewall and Heubner.

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 3636 9041 3617 9013 3586 9096 3602 9107
TIME...MOT...LOC 2315Z 235DEG 29KT 3598 9095 

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

$$
2 follow-up statements
449 
WWUS54 KMEG 242331
SVSMEG

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

ARC031-075-MOC069-242340-
/O.CAN.KMEG.TO.W.0003.000000T0000Z-180225T0000Z/
Craighead AR-Lawrence AR-Dunklin MO-
531 PM CST SAT FEB 24 2018

...THE TORNADO WARNING FOR NORTHWESTERN CRAIGHEAD...SOUTHEASTERN
LAWRENCE AND SOUTH CENTRAL DUNKLIN 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 eastern
Arkansas...and southeastern Missouri.

LAT...LON 3621 9018 3618 9021 3618 9022 3614 9024
      3612 9026 3596 9070 3597 9071 3611 9078
      3615 9075 3615 9080 3636 9041
TIME...MOT...LOC 2330Z 237DEG 47KT 3610 9071 

$$

ARC021-055-250000-
/O.CON.KMEG.TO.W.0003.000000T0000Z-180225T0000Z/
Greene AR-Clay AR-
531 PM CST SAT FEB 24 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR GREENE
AND SOUTH CENTRAL CLAY COUNTIES...
    
At 530 PM CST, a severe thunderstorm producing a tornado was located
near Walcott, or near Crowleys Ridge State Park, moving northeast 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. 

Locations impacted include...
Paragould, Rector, Marmaduke, Crowleys Ridge State Park, Lake
Frierson State Park, Oak Grove Heights, Lafe, Evening Star, Walcott,
Beech Grove, Stonewall, Heubner, Fritz, Mounds, Halliday, Light,
Leonard, Finch, Lorado and Faulknerville.

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 3621 9018 3618 9021 3618 9022 3614 9024
      3612 9026 3596 9070 3597 9071 3611 9078
      3615 9075 3615 9080 3636 9041
TIME...MOT...LOC 2330Z 237DEG 47KT 3610 9071 

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

$$
812 
WWUS54 KMEG 242339
SVSMEG

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

ARC021-055-242348-
/O.CAN.KMEG.TO.W.0003.000000T0000Z-180225T0000Z/
Greene AR-Clay AR-
539 PM CST SAT FEB 24 2018

...THE TORNADO WARNING FOR GREENE AND SOUTH CENTRAL CLAY 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 southeastern Missouri.

LAT...LON 3621 9018 3618 9021 3618 9022 3614 9024
      3612 9026 3596 9070 3597 9071 3611 9078
      3615 9075 3615 9080 3636 9041
TIME...MOT...LOC 2337Z 235DEG 29KT 3614 9064 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 9:26 AM CSTDense Fog AdvisoryMEGClay, Greene, Lawrence, Randolph4 hr
Feb 24, 1:32 PM CSTFlash Flood WarningMEGClay, Greene, Lawrence, Randolph6 hr
Feb 24, 4:28 PM CSTFlash Flood WarningMEGCraighead, Cross, Poinsett4 hr
Feb 24, 4:33 PM CSTSevere Thunderstorm WarningMEGCraighead, Greene, Lawrence, Randolph42 min
Feb 24, 4:51 PM CSTSevere Thunderstorm WarningMEGClay, Randolph39 min
Feb 24, 5:02 PM CSTSevere Thunderstorm WarningMEGCraighead, Poinsett43 min
Feb 24, 5:05 PM CSTSevere Thunderstorm WarningMEGClay, Greene, Lawrence, Randolph40 min
Feb 24, 5:06 PM CSTTornado WarningMEGClay, Randolph24 min
Feb 24, 5:14 PM CSTTornado WarningMEGClay, Greene, Randolph46 min
Feb 24, 5:18 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, Poinsett42 min
Feb 24, 5:29 PM CSTTornado WarningMEGCraighead, Mississippi, Poinsett10 min
Feb 24, 5:34 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, Lee, St. Francis41 min
Feb 24, 5:40 PM CSTFlash Flood WarningMEGLee, St. Francis5 hr
Feb 24, 5:42 PM CSTFlash Flood WarningMEGMississippi6 hr
Feb 24, 5:42 PM CSTSevere Thunderstorm WarningMEGClay, Craighead, Crittenden, Greene, Mississippi, Poinsett48 min
Feb 24, 5:56 PM CSTTornado WarningMEGClay23 min
Feb 24, 5:19 PM CSTFlash Flood WarningMEGPemiscot6 hr

Nearby

Tornado Warnings in Arkansas, 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.