Alert archive / Arkansas / Tornado Warnings in 2018

Tornado Warning 32, NWS Memphis, TN

June 21, 2018Craighead County, Poinsett County, Arkansas

NWS Memphis, TN issued this tornado warning at Jun 21, 2018, 2:10 PM CDT for Craighead County, Poinsett County, Arkansas. It was in force for 35 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
Jun 21, 2018, 2:10 PM CDT (19:10 UTC)
Expired
Jun 21, 2018, 2:45 PM CDT
In force
35 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

Counties Craighead County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 86 km from the middle of the area, began a volume at 19:11 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
Jun 21, 2:15 PM CDTHAIL 1.55 W Greenfield, ARPING PONG SIZED HAIL REPORTED BY LAW ENFORCEMENT
Jun 21, 2:20 PM CDTHAIL 1.753 N Weiner, ARGOLF BALL SIZED HAIL WAS SPOTTED 3 MILES NORTH OF WEINER IN POINSETT.

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
Jun 21, 1:39 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 7.2 hours before the alert went out and 117 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 2018-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 399 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 2018-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.193958Sfc1 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
399 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
736 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted.

236 
WFUS54 KMEG 211910
TORMEG
ARC031-111-211945-
/O.NEW.KMEG.TO.W.0032.180621T1910Z-180621T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
210 PM CDT THU JUN 21 2018

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Southwestern Craighead County in eastern Arkansas...
  Northeastern Poinsett County in eastern Arkansas...

* Until 245 PM CDT.
    
* At 210 PM CDT, a severe thunderstorm producing a tornado was
  located near Weiner, or 11 miles southwest of Jonesboro, moving
  east at 30 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  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...
  Trumann, Harrisburg, Bay, Weiner, Greenfield, Payneway, Tulot,
  Landers, Davis Spur, Elm Grove, Weona, Hatchie Coon, Cassidy, Maple
  Grove, Promised Land, Whitaker, Otwell, Cary, McCormick and Old
  Weona.

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 3563 9096 3577 9091 3575 9042 3550 9049
TIME...MOT...LOC 1910Z 282DEG 28KT 3571 9085 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$
2 follow-up statements
474 
WWUS54 KMEG 211923
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
223 PM CDT THU JUN 21 2018

ARC031-211932-
/O.CAN.KMEG.TO.W.0032.000000T0000Z-180621T1945Z/
Craighead AR-
223 PM CDT THU JUN 21 2018

...THE TORNADO WARNING FOR SOUTHWESTERN CRAIGHEAD COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. A severe thunderstorm warning remains in effect 
until 245 PM CDT for Craighead County. 

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
eastern Arkansas.

LAT...LON 3571 9086 3570 9044 3570 9043 3550 9049
      3561 9089
TIME...MOT...LOC 1922Z 282DEG 28KT 3569 9074 

$$

ARC111-211945-
/O.CON.KMEG.TO.W.0032.000000T0000Z-180621T1945Z/
Poinsett AR-
223 PM CDT THU JUN 21 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR
NORTHEASTERN POINSETT COUNTY...
    
At 222 PM CDT, a severe thunderstorm producing a tornado was located
over Greenfield, or 9 miles north of Harrisburg, moving east at 30
mph.

HAZARD...Tornado and ping pong ball size hail.

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...
Trumann, Harrisburg, Greenfield, Payneway, Tulot, Landers, Weona,
Hatchie Coon, Cassidy, Maple Grove, Promised Land, Whitaker,
McCormick, Old Weona and Judd Hill.

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 3571 9086 3570 9044 3570 9043 3550 9049
      3561 9089
TIME...MOT...LOC 1922Z 282DEG 28KT 3569 9074 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$
605 
WWUS54 KMEG 211936
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
236 PM CDT THU JUN 21 2018

ARC111-211945-
/O.EXP.KMEG.TO.W.0032.000000T0000Z-180621T1945Z/
Poinsett AR-
236 PM CDT THU JUN 21 2018

...THE TORNADO WARNING FOR NORTHEASTERN POINSETT COUNTY WILL EXPIRE
AT 245 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
eastern Arkansas.

Remember, a Severe Thunderstorm Warning still remains in effect for
Poinsett and Craighead counties until 245 PM CDT. 

LAT...LON 3571 9086 3570 9044 3570 9043 3550 9049
      3561 9089
TIME...MOT...LOC 1935Z 282DEG 28KT 3567 9063 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 1:36 PM CDTSevere Thunderstorm WarningMEGCraighead, Poinsett39 min
Jun 21, 2:05 PM CDTSevere Thunderstorm WarningMEGCraighead, Poinsett40 min
Jun 21, 2:43 PM CDTSevere Thunderstorm WarningMEGPoinsett32 min
Jun 21, 2:56 PM CDTSevere Thunderstorm WarningMEGPoinsett34 min
Jun 21, 3:18 PM CDTFlash Flood WarningMEGCraighead, Poinsett96 min
Jun 21, 3:29 PM CDTSevere Thunderstorm WarningMEGPoinsett31 min
Jun 21, 3:49 PM CDTSevere Thunderstorm WarningMEGMississippi26 min
Jun 21, 4:01 PM CDTSevere Thunderstorm WarningMEGMississippi, Poinsett44 min
Jun 21, 4:24 PM CDTSevere Thunderstorm WarningMEGMississippi36 min
Jun 21, 4:47 PM CDTSpecial Weather StatementMEGCrittenden43 min

Nearby

Tornado 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.