Alert archive / Arkansas / Tornado Warnings in 2011

Tornado Warning 6, NWS Little Rock, AR

April 14, 2011Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this tornado warning at Apr 14, 2011, 10:39 PM CDT for Polk County, Scott County, Arkansas. It was in force for 51 min. 8 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
Apr 14, 2011, 10:39 PM CDT (03:39 UTC)
Expired
Apr 14, 2011, 11:30 PM CDT
In force
51 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 73 km from the middle of the area, began a volume at 03:40 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
Apr 14, 11:03 PM CDTHAIL 1Mena, AR
Apr 14, 11:05 PM CDTTSTM WND DMGMena, ARA HOUSE WAS SEVERELY DAMAGED...WITH WINDOWS BLOWN OUT...AND AWNING RIPPED OFF. IRONWORK IN THE HOUSES YARD WAS BENT. LARGE AND SMALL LIMBS WERE BLOWN DOWN.
Apr 14, 11:07 PM CDTTSTM WND DMGMena, ARTREES ARE DOWN ON A HOUSE AND VEHICLE ON THE SOUTH SIDE OF MENA.
Apr 14, 11:07 PM CDTTORNADO 11 Sw Mena, ARA TORNADO DESTROYED A WAREHOUSE USED BY A SNACK FOOD COMPANY. NUMEROUS TREES WERE BLOW DOWN...AND ONE OF THE TREES FELL ON A HOUSE. A BARN WAS DAMAGED AS WELL. THE TORNADO WAS RATED EF1...AND TRACKED ONLY HALF A MILE BEFORE DISSIPATING 1.4 MILES SOUTHWEST OF M
Apr 14, 11:11 PM CDTHAIL 2Mena, AR
Apr 14, 11:16 PM CDTTSTM WND DMGMena, ARA FRITO LAY STORAGE WAREHOUSE WAS DESTROYED. THIS REPORT WAS RELAYED BY THE MEDIA.
Apr 14, 11:19 PM CDTHAIL 1Mena, AR
Apr 14, 11:21 PM CDTTSTM WND DMGMena, ARPOWER LINES AND POWER POLES ARE DOWN ACROSS THE CITY OF MENA. A GOOD PART OF THE CITY IS WITHOUT POWER.

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
Apr 14, 9:06 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.7 hours before the alert went out and 246 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, Shreveport, LA at 00:00Z on 2011-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1201 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, Shreveport, LA at 00:00Z on 2011-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897Sfc1 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
1201 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1314 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

964 
WFUS54 KLZK 150339
TORLZK
ARC113-127-150430-
/O.NEW.KLZK.TO.W.0006.110415T0339Z-110415T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1039 PM CDT THU APR 14 2011

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME SOUTH CENTRAL SCOTT COUNTY IN WESTERN ARKANSAS...
  NORTHWESTERN POLK COUNTY IN WESTERN ARKANSAS...

* UNTIL 1130 PM CDT

* AT 1035 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS SEVERE
  STORM WAS LOCATED 11 MILES WEST OF MOUNTAIN FORK...OR 21 MILES WEST
  OF MENA. DOPPLER RADAR SHOWED THIS SEVERE STORM MOVING EAST AT 35
  MPH.

* LOCATIONS IN THE PATH OF THIS DANGEROUS STORM INCLUDE...
  MENA...               QUEEN WILHELMINA SP...
  POLK CNTY FAIRGNDS... MOUNTAIN FORK...      LAKE WILHELMINA...
  LAKE MENA...          ROCKY...              RICH MTN...
  POTTER...             NUNLEY...             INK...
  EAGLETON...           DALLAS...             ACORN...
  WEEHUNT MTN...        SHADY GROVE...        ROUND TOP MTN...
  QUENTIN MTN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3466 9446 3470 9446 3475 9415 3450 9411
      3453 9446 3465 9447
TIME...MOT...LOC 0339Z 264DEG 31KT 3460 9457

$$

BJS
3 follow-up statements
666 
WWUS54 KLZK 150404
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1104 PM CDT THU APR 14 2011

ARC113-127-150430-
/O.CON.KLZK.TO.W.0006.000000T0000Z-110415T0430Z/
POLK AR-SCOTT AR-
1104 PM CDT THU APR 14 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EXTREME SOUTH CENTRAL
SCOTT AND NORTHWESTERN POLK COUNTIES UNTIL 1130 PM CDT...

AT 1058 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED 3 MILES WEST OF LAKE WILHELMINA...OR 10 
MILES WEST OF MENA...MOVING EAST AT 30 MPH. VERY LARGE HAIL UP TO 
THE SIZE OF GOLF BALLS HAS ALSO BEEN REPORTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...
  MENA...               QUEEN WILHELMINA SP...
  POLK CNTY FAIRGNDS... MOUNTAIN FORK...      LAKE WILHELMINA...
  LAKE MENA...          ROCKY...              RICH MTN...
  POTTER...             NUNLEY...             HOWARD...
  EAGLETON...           DALLAS...             ACORN...
  WEEHUNT MTN...        SHADY GROVE...        ROUND TOP MTN...
  QUENTIN MTN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3466 9446 3470 9446 3475 9415 3450 9411
      3453 9446 3465 9447
TIME...MOT...LOC 0403Z 270DEG 27KT 3459 9436

$$

BJS
765 
WWUS54 KLZK 150420
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1120 PM CDT THU APR 14 2011

ARC113-127-150430-
/O.CON.KLZK.TO.W.0006.000000T0000Z-110415T0430Z/
POLK AR-SCOTT AR-
1120 PM CDT THU APR 14 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EXTREME SOUTH CENTRAL
SCOTT AND NORTH CENTRAL POLK COUNTIES UNTIL 1130 PM CDT...

AT 1117 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED NEAR LAKE MENA...OR 2 MILES EAST OF
MENA...MOVING EAST AT 30 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...
  LAKE MENA...          ACORN...              FORAN GAP...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3456 9423 3474 9421 3475 9415 3457 9412
TIME...MOT...LOC 0420Z 270DEG 27KT 3458 9417

$$

BJS
250 
WWUS54 KLZK 150430
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1130 PM CDT THU APR 14 2011

ARC113-127-150440-
/O.EXP.KLZK.TO.W.0006.000000T0000Z-110415T0430Z/
POLK AR-SCOTT AR-
1130 PM CDT THU APR 14 2011

...THE TORNADO WARNING FOR EXTREME SOUTH CENTRAL SCOTT AND NORTH
CENTRAL POLK COUNTIES HAS EXPIRED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

LAT...LON 3456 9423 3474 9421 3475 9415 3457 9412
TIME...MOT...LOC 0420Z 270DEG 27KT 3458 9417

$$

BJS

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 10:17 PM CDTSevere Thunderstorm WarningLZKLogan, Polk, Scott58 min
Apr 14, 10:26 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery, Perry, Yell49 min
Apr 14, 10:35 PM CDTTornado WarningLZKLogan, Scott25 min
Apr 14, 10:40 PM CDTTornado WarningLZKLogan, Montgomery, Perry, Yell50 min
Apr 14, 10:58 PM CDTTornado WarningLZKPolk32 min
Apr 14, 11:00 PM CDTTornado WarningLZKLogan, Scott30 min
Apr 14, 11:06 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Montgomery, Pike, Polk, Scott and 1 more39 min
Apr 14, 11:10 PM CDTTornado WarningLZKLogan35 min
Apr 14, 11:23 PM CDTTornado WarningLZKLogan, Pope, Yell37 min
Apr 14, 11:28 PM CDTTornado WarningLZKMontgomery, Polk47 min
Apr 14, 11:37 PM CDTTornado WarningLZKJohnson, Logan, Pope19 min
Apr 14, 11:44 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Montgomery, Pike, Polk, Pope and 2 more46 min
Apr 15, 12:04 AM CDTSevere Thunderstorm WarningLZKConway, Garland, Montgomery, Perry, Pope, Saline and 1 more41 min
Apr 15, 12:07 AM CDTTornado WarningLZKGarland, Montgomery, Yell53 min
Apr 15, 12:12 AM CDTSevere Thunderstorm WarningLZKCleburne, Independence, Izard, Sharp35 min
Apr 15, 12:22 AM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Montgomery, Pike42 min
Apr 15, 12:45 AM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Garland, Perry, Pope, Pulaski and 2 more45 min
Apr 15, 12:51 AM CDTSevere Thunderstorm WarningLZKClark, Garland, Grant, Hot Spring, Perry, Pike and 3 more39 min
Apr 15, 1:11 AM CDTSpecial Weather StatementLZKJackson29 min
Apr 15, 1:23 AM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Faulkner, Lonoke, Perry, Prairie and 3 more52 min
Apr 15, 1:24 AM CDTTornado WarningLZKFaulkner, Perry, Pulaski, Saline36 min
Apr 15, 1:25 AM CDTSevere Thunderstorm WarningLZKFaulkner, Garland, Grant, Hot Spring, Perry, Pulaski and 1 more50 min
Apr 15, 1:47 AM CDTTornado WarningLZKCleburne, Independence, Stone, White28 min
Apr 15, 1:56 AM CDTTornado WarningLZKGrant, Lonoke, Prairie, Pulaski, Saline34 min
Apr 15, 1:58 AM CDTTornado WarningLZKFaulkner, Lonoke, Pulaski, White21 min
Apr 15, 1:59 AM CDTTornado WarningLZKLonoke, Pulaski, White46 min
Apr 15, 2:02 AM CDTTornado WarningLZKLonoke, Pulaski43 min
Apr 15, 2:19 AM CDTSevere Thunderstorm WarningLZKArkansas, Cleveland, Dallas, Grant, Jefferson, Lincoln and 3 more41 min
Apr 15, 2:20 AM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland, Dallas, Ouachita40 min
Apr 15, 2:30 AM CDTTornado WarningLZKLonoke, Monroe, Prairie, Woodruff45 min
Apr 15, 2:39 AM CDTTornado WarningLZKCalhoun, Cleveland, Dallas, Lincoln, Ouachita51 min
Apr 15, 2:40 AM CDTSevere Thunderstorm WarningLZKIndependence, Jackson, Monroe, Prairie, Sharp, White and 1 more50 min
Apr 15, 2:40 AM CDTTornado WarningLZKLonoke, Monroe, Prairie, White, Woodruff50 min
Apr 15, 2:49 AM CDTSevere Thunderstorm WarningLZKArkansas, Jefferson, Lincoln, Monroe, Prairie, Woodruff56 min
Apr 15, 2:49 AM CDTTornado WarningLZKArkansas, Jefferson18 min
Apr 15, 2:58 AM CDTSevere Thunderstorm WarningLZKArkansas, Bradley, Calhoun, Cleveland, Dallas, Drew and 4 more47 min
Apr 15, 3:10 AM CDTFlash Flood WarningLZKBaxter, Izard, Marion, Newton, Pope, Searcy and 2 more110 min
Apr 15, 3:42 AM CDTSevere Thunderstorm WarningLZKArkansas, Bradley, Cleveland, Desha, Drew, Jefferson and 2 more63 min
Apr 15, 4:14 AM CDTTornado WarningLZKDesha, Drew46 min
Apr 15, 4:55 AM CDTSevere Thunderstorm WarningLZKDesha30 min

Nearby

Tornado Warnings in Arkansas, 2011Every tornado warning in 2011Tornadoes in 2011

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.