Alert archive / Arkansas / Tornado Warnings in 2012

Tornado Warning 22, NWS Little Rock, AR

August 31, 2012Arkansas County, Jefferson County, Lincoln County, Arkansas

NWS Little Rock, AR issued this tornado warning at Aug 31, 2012, 7:02 PM CDT for Arkansas County, Jefferson County, Lincoln County, Arkansas. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 31, 2012, 7:02 PM CDT (00:02 UTC)
Expired
Aug 31, 2012, 7:30 PM CDT
In force
28 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Arkansas County, AR, Jefferson County, AR, Lincoln County, AR

The radar

The Little Rock radar (KLZK), 100 km from the middle of the area, began a volume at 00:06 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.

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 0.0 hours before the alert went out and 155 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 00:00Z on 2012-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 968 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
968 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1208 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

951 
WFUS54 KLZK 010002
TORLZK
ARC001-069-079-010030-
/O.NEW.KLZK.TO.W.0022.120901T0002Z-120901T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
702 PM CDT FRI AUG 31 2012

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL LINCOLN COUNTY IN SOUTHEAST ARKANSAS...
  SOUTHEASTERN JEFFERSON COUNTY IN SOUTHEAST ARKANSAS...
  CENTRAL ARKANSAS COUNTY IN SOUTHEAST ARKANSAS...

* UNTIL 730 PM CDT

* AT 657 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS SEVERE
  STORM WAS LOCATED 2 MILES SOUTHEAST OF GRADY...OR 12 MILES
  NORTHEAST OF STAR CITY. DOPPLER RADAR SHOWED THIS SEVERE STORM
  MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IN THE PATH OF THIS DANGEROUS STORM INCLUDE...
  WOODVILLE...          LITTLE BAYOU METO PARK...
  LANGFORD...           GRADY...              ENGLISH LAKE...
  DOUGLAS...            DE WITT...            VARNER...
  SARASSA...            REYDELL...            DE LUCE...
  THOMAS RESERVOIR...   SOLLARS RESERVOIR...  SHANNON TANK...
  SARASSA LAKE...       ROUND LAKE...         RODGERS RESERVOIR...
  PRAIRIE UNION...

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 3439 9136 3419 9122 3401 9167 3410 9175
TIME...MOT...LOC 0002Z 235DEG 32KT 3407 9164

$$

/51
1 follow-up statement
032 
WWUS54 KLZK 010021
SVSLZK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
721 PM CDT FRI AUG 31 2012

ARC069-079-010031-
/O.CAN.KLZK.TO.W.0022.000000T0000Z-120901T0030Z/
JEFFERSON AR-LINCOLN AR-
721 PM CDT FRI AUG 31 2012

...THE TORNADO WARNING FOR NORTH CENTRAL LINCOLN AND SOUTHEASTERN
JEFFERSON COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3410 9144 3411 9145 3413 9144 3413 9147
      3415 9148 3439 9136 3419 9122
TIME...MOT...LOC 0021Z 240DEG 34KT 3415 9141

$$

ARC001-010030-
/O.CON.KLZK.TO.W.0022.000000T0000Z-120901T0030Z/
ARKANSAS AR-
721 PM CDT FRI AUG 31 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ARKANSAS COUNTY
UNTIL 730 PM CDT...

AT 718 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED 4 MILES WEST OF GILLETT...OR 17 MILES
WEST OF WHITE RIVER NWR...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...
  DE WITT...            DE LUCE...            THOMAS RESERVOIR...
  PRAIRIE UNION...      MITCHELL LAKE...      MILLER LAKE...
  MCKINLEY RES...       MAYVIEW...            LUMSDEN RESERVOIR...
  LOWE LAKE...          LITTLE PELICAN LAKE...
  LA FARGUE...          INDIANA...            HYDEN...
  HALLER LAKE...        HALL LAKE...          GREGORY LAKE...
  FLAG LAKE...

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 3410 9144 3411 9145 3413 9144 3413 9147
      3415 9148 3439 9136 3419 9122
TIME...MOT...LOC 0021Z 240DEG 34KT 3415 9141

$$

/51

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 2:31 PM CDTRiver Flood WarningLZKJackson, Woodruff17 days
Sep 1, 3:51 PM CDTSpecial Weather StatementLZKFaulkner29 min
Sep 1, 3:54 PM CDTSevere Thunderstorm WarningLZKFaulkner, White36 min
Sep 1, 4:15 PM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, White30 min
Sep 1, 4:21 PM CDTSevere Thunderstorm WarningLZKIndependence, Jackson14 min
Sep 1, 4:40 PM CDTSpecial Weather StatementLZKWhite30 min
Sep 1, 4:47 PM CDTSpecial Weather StatementLZKWoodruff33 min
Sep 1, 4:51 PM CDTSevere Thunderstorm WarningLZKFaulkner24 min
Sep 1, 4:52 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie, White, Woodruff38 min
Sep 1, 4:56 PM CDTSevere Thunderstorm WarningLZKJackson34 min
Sep 1, 5:06 PM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring, Saline39 min
Sep 1, 5:13 PM CDTSevere Thunderstorm WarningLZKPulaski, Saline47 min
Sep 1, 5:21 PM CDTSevere Thunderstorm WarningLZKWoodruff39 min
Sep 1, 5:23 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie, Pulaski, White52 min
Sep 1, 5:45 PM CDTSevere Thunderstorm WarningLZKMonroe, Prairie, Woodruff45 min
Sep 1, 5:45 PM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring45 min
Sep 1, 5:49 PM CDTSevere Thunderstorm WarningLZKGarland, Grant, Hot Spring, Saline41 min
Sep 1, 5:57 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery48 min
Sep 1, 6:02 PM CDTSevere Thunderstorm WarningLZKGrant, Pulaski, Saline43 min
Sep 1, 6:27 PM CDTSevere Thunderstorm WarningLZKMonroe, Prairie, Woodruff33 min
Sep 1, 6:29 PM CDTSevere Thunderstorm WarningLZKJefferson, Lonoke, Pulaski46 min
Sep 1, 6:31 PM CDTSevere Thunderstorm WarningLZKGrant, Hot Spring, Jefferson, Saline44 min
Sep 1, 6:36 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie, White, Woodruff39 min
Sep 1, 6:41 PM CDTSevere Thunderstorm WarningLZKGarland, Grant, Hot Spring, Saline34 min
Sep 1, 6:44 PM CDTFlash Flood WarningLZKMonroe, Prairie, White, Woodruff3 hr
Sep 1, 6:55 PM CDTSevere Thunderstorm WarningLZKArkansas, Jefferson, Lincoln50 min
Sep 1, 6:58 PM CDTFlash Flood WarningLZKGrant, Hot Spring, Jefferson3 hr

Nearby

Tornado Warnings in Arkansas, 2012Every tornado warning in 2012Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.