Alert archive / Missouri / Tornado Warnings in 2014

Tornado Warning 67, NWS Memphis, TN

October 13, 2014Dunklin County, Missouri; Clay County, Arkansas

NWS Memphis, TN issued this tornado warning at Oct 13, 2014, 12:47 PM CDT for Dunklin County, Missouri; Clay County, Arkansas. It was in force for 17 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
Oct 13, 2014, 12:47 PM CDT (17:47 UTC)
Expired
Oct 13, 2014, 1:04 PM CDT
In force
17 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Clay County, AR, Dunklin County, MO

The radar

The Memphis radar (KNQA), 134 km from the middle of the area, began a volume at 17:50 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
Oct 13, 12:59 PM CDTTSTM WND DMG2 N Mcdougal, ARFOUR HOUSES BADLY DAMAGED NORTH OF HIGHWAY 62. ALSO TREES DOWN ON HOUSES.
Oct 13, 1:00 PM CDTTSTM WND DMGMcdougal, ARSEVERAL TREES DOWN IN MCDOUGAL.

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
Oct 13, 7:08 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 5.8 hours before the alert went out and 189 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 2014-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 687 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 2014-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 square meters per square second.19395878Sfc1 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
687 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

713 
WFUS54 KMEG 131747
TORMEG
ARC021-MOC069-131815-
/O.NEW.KMEG.TO.W.0067.141013T1747Z-141013T1815Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1247 PM CDT MON OCT 13 2014

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CLAY COUNTY IN EASTERN ARKANSAS...
  NORTH CENTRAL DUNKLIN COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 115 PM CDT

* AT 1247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING A TORNADO NEAR MCDOUGAL...OR 10 MILES
  WEST OF PIGGOTT...MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WILHELMINA
  AND CHALK BLUFF NATURAL AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

.THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STORM SHELTER. IF NO
STORM SHELTER IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

.SEND YOUR STORM REPORTS TO US ON TWITTER USING AT NWSMEMPHIS...POST
TO OUR NWS MEMPHIS FACEBOOK PAGE...OR SEND A REPORT ON OUR WEBSITE AT
WEATHER DOT GOV SLANT MEMPHIS AND CLICK ON SUBMIT STORM REPORT.

&&

LAT...LON 3631 9032 3639 9052 3650 9045 3650 9023
      3654 9021 3655 9019 3659 9019 3662 9017
      3664 9014 3664 9008
TIME...MOT...LOC 1747Z 208DEG 43KT 3643 9036

$$
ZDM/JPM3
1 follow-up statement
438 
WWUS54 KMEG 131804
SVSMEG

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
104 PM CDT MON OCT 13 2014

ARC021-MOC069-131814-
/O.CAN.KMEG.TO.W.0067.000000T0000Z-141013T1815Z/
CLAY AR-DUNKLIN MO-
104 PM CDT MON OCT 13 2014

...THE TORNADO WARNING FOR NORTH CENTRAL DUNKLIN AND CENTRAL CLAY
COUNTIES IS CANCELLED...

AT 104 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA 
AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
THEREFORE...THE TORNADO WARNING IS CANCELLED.

.SEND YOUR STORM REPORTS TO US ON TWITTER USING AT NWSMEMPHIS...POST
TO OUR NWS MEMPHIS FACEBOOK PAGE...OR SEND A REPORT ON OUR WEBSITE AT
WEATHER DOT GOV SLANT MEMPHIS AND CLICK ON SUBMIT STORM REPORT.

.A TORNADO WATCH ALSO REMAINS IN EFFECT FOR THE ALERT AREA.

LAT...LON 3631 9032 3639 9052 3650 9045 3650 9023
      3654 9021 3655 9019 3659 9019 3662 9017
      3664 9014 3664 9008
TIME...MOT...LOC 1804Z 208DEG 43KT 3661 9024

$$

ZDM

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 3:54 AM CDTFlash Flood WatchMEGDunklin, Pemiscot15 hr
Oct 13, 12:37 PM CDTSevere Thunderstorm WarningMEGDunklin23 min
Oct 13, 12:57 PM CDTSevere Thunderstorm WarningMEGDunklin, Pemiscot48 min
Oct 13, 1:32 PM CDTSevere Thunderstorm WarningMEGPemiscot28 min
Oct 13, 1:58 PM CDTSevere Thunderstorm WarningMEGPemiscot32 min
Oct 13, 11:07 AM CDTAreal Flood AdvisoryMEGRandolph3 hr
Oct 13, 11:56 AM CDTSevere Thunderstorm WarningMEGPhillips49 min
Oct 13, 12:04 PM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Lee, Phillips, St. Francis41 min
Oct 13, 12:43 PM CDTSevere Thunderstorm WarningMEGCraighead, Crittenden, Cross, Mississippi, Poinsett, St. Francis47 min
Oct 13, 12:52 PM CDTSevere Thunderstorm WarningMEGCrittenden, Lee, Phillips, St. Francis38 min

Nearby

Tornado Warnings in Missouri, 2014Tornado Warnings in Arkansas, 2014Every tornado warning in 2014Tornadoes in 2014

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.