Alert archive / Arkansas / Tornado Warnings in 2012

Tornado Warning 23, NWS Tulsa, OK

December 19, 2012Crawford County, Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at Dec 19, 2012, 9:48 PM CST for Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 11 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
Dec 19, 2012, 9:48 PM CST (03:48 UTC)
Expired
Dec 19, 2012, 9:59 PM CST
In force
11 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Crawford County, AR, Franklin County, AR, Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 49 km from the middle of the area, began a volume at 03:50 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
Dec 19, 9:48 PM CSTTSTM WND DMG7 Ne Lavaca, ARSEVERAL HOMES AND FIRE STATION DAMAGED IN THE COMMUNITY OF RIVERDALE. NWS TULSA WILL SEND A SURVEY TEAM TO THE AREA TOMORROW TO DETERMINE IF THE DAMAGE WAS FROM A TORNADO.
Dec 19, 9:48 PM CSTTORNADO7 Ne Lavaca, ARMOBILE HOME WAS DAMAGED FROM A TORNADO.
Dec 19, 9:56 PM CSTHAIL 0.881 S Mulberry, ARDIME TO NICKEL HAIL JUST SOUTH OF MULBERRY.

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
Dec 19, 7:36 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.8 hours before the alert went out and 163 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, Springfield, MO at 00:00Z on 2012-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 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, Springfield, MO at 00:00Z on 2012-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 442 square meters per square second.1939587897117136Sfc1 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
78 J/kg
Mixed-layer CIN
-223 J/kg
Mixed-layer LCL
609 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
442 m²/s²
0-3 km storm-relative helicity
455 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

424 
WFUS54 KTSA 200348
TORTSA
ARC033-047-131-200415-
/O.NEW.KTSA.TO.W.0023.121220T0348Z-121220T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
948 PM CST WED DEC 19 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS
  CENTRAL FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS
  NORTHEASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 1015 PM CST

* AT 945 PM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM DYER TO 9 MILES
  SOUTH OF DYER...MOVING EAST AT 55 MPH. TORNADOES MAY FORM RAPIDLY
  ANYWHERE IN THE LINE OF STORMS!

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  MULBERRY...OZARK...DENNING...ALTUS AND WIEDERKEHR VILLAGE.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 25 AND 43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!

&&

LAT...LON 3540 9371 3539 9379 3540 9380 3539 9380
      3535 9413 3549 9416 3563 9369
TIME...MOT...LOC 0348Z 255DEG 46KT 3549 9409 3537 9407

$$
2 follow-up statements
774 
WWUS54 KTSA 200352
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
952 PM CST WED DEC 19 2012

ARC131-200402-
/O.CAN.KTSA.TO.W.0023.000000T0000Z-121220T0415Z/
SEBASTIAN AR-
952 PM CST WED DEC 19 2012

...THE TORNADO WARNING FOR NORTHEASTERN SEBASTIAN COUNTY IS
CANCELLED...

LAT...LON 3540 9371 3539 9379 3540 9380 3539 9381
      3537 9408 3544 9408 3545 9410 3549 9411
      3563 9369
TIME...MOT...LOC 0352Z 255DEG 46KT 3548 9403 3539 9403

$$

ARC033-047-200415-
/O.CON.KTSA.TO.W.0023.000000T0000Z-121220T0415Z/
CRAWFORD AR-FRANKLIN AR-
952 PM CST WED DEC 19 2012

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CST FOR CENTRAL
FRANKLIN AND SOUTHEASTERN CRAWFORD COUNTIES...

AT 950 PM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM MULBERRY TO
VESTA...MOVING EAST AT 55 MPH. TORNADOES MAY FORM RAPIDLY ANYWHERE IN
THE LINE OF STORMS!

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CECIL...
TONEY...MEG...CRAVENS...OZARK...WATALULA...DENNING...WIEDERKEHR
VILLAGE...ALTUS AND ALIX.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 28 AND 43.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS...TAKE COVER NOW! IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE!

&&

LAT...LON 3540 9371 3539 9379 3540 9380 3539 9381
      3537 9408 3544 9408 3545 9410 3549 9411
      3563 9369
TIME...MOT...LOC 0352Z 255DEG 46KT 3548 9403 3539 9403

$$
040 
WWUS54 KTSA 200359
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
959 PM CST WED DEC 19 2012

ARC033-047-200407-
/O.CAN.KTSA.TO.W.0023.000000T0000Z-121220T0415Z/
CRAWFORD AR-FRANKLIN AR-
959 PM CST WED DEC 19 2012

...THE TORNADO WARNING FOR CENTRAL FRANKLIN AND SOUTHEASTERN CRAWFORD
COUNTIES IS CANCELLED...

THE TORNADIC THREAT HAS DISSIPATED WITH THIS PORTION OF THE LINE OF 
THUNDERSTORMS...THEREFORE THE TORNADO WARNING HAS BEEN 
CANCELLED.

HOWEVER THE POTENTIAL FOR SEVERE STRAIGHT LINE WINDS REMAINS
FOR ANYWHWERE ALONG THE LINE OF STORMS.  A SEVERE THUNDERSTORM 
WARMING REMAINS IN EFFECT FOR THE AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 2 AM.

LAT...LON 3540 9371 3539 9379 3540 9380 3539 9381
      3537 9408 3544 9408 3545 9410 3549 9411
      3563 9369
TIME...MOT...LOC 0357Z 255DEG 46KT 3549 9395 3540 9395

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 9:11 PM CSTSevere Thunderstorm WarningTSASebastian34 min
Dec 19, 9:17 PM CSTSpecial Weather StatementTSACrawford28 min
Dec 19, 9:21 PM CSTSpecial Weather StatementTSACrawford24 min
Dec 19, 9:42 PM CSTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Sebastian63 min
Dec 19, 10:20 PM CSTSpecial Weather StatementTSACarroll, Madison40 min
Dec 20, 1:09 PM CSTWind AdvisoryTSABenton, Carroll, Madison, Washington4 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.