Alert archive / Arkansas / Tornado Warnings in 2013

Tornado Warning 26, NWS Tulsa, OK

May 20, 2013Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 20, 2013, 9:05 PM CDT for Crawford County, Sebastian County, Arkansas. It was in force for 40 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
May 20, 2013, 9:05 PM CDT (02:05 UTC)
Expired
May 20, 2013, 9:45 PM CDT
In force
40 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Crawford County, AR, Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 11 km from the middle of the area, began a volume at 02:08 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
May 20, 9:15 PM CDTTSTM WND DMGVan Buren, ARSTRUCTURE HAD WINDOWS BLOWN OUT ON WASHINGTON STREET...SEVERAL POWER OUTAGES REPORTED...MULTIPLE TREES DOWN ACROSS COUNTY
May 20, 9:17 PM CDTTSTM WND DMGVan Buren, AR3 TO 4 FOOT TREE SNAPPED AT ITS BASE.

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
May 20, 1:10 PM CDTTornado WatchSPC9 hr
May 20, 7:39 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.1 hours before the alert went out and 182 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 2013-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2135 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 2013-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
2135 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
780 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
3.2
Supercell composite
13.9

Open this sounding in Storm Lab

The text

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

428 
WFUS54 KTSA 210205
TORTSA
ARC033-131-210245-
/O.NEW.KTSA.TO.W.0026.130521T0205Z-130521T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
905 PM CDT MON MAY 20 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS...
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...

* UNTIL 945 PM CDT

* AT 904 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM 17 MILES WEST OF
  FORT SMITH TO 5 MILES WEST OF FORT SMITH REGIONAL AIRPORT TO 5
  MILES SOUTH OF EXCELSIOR...MOVING NORTHEAST AT 50 MPH. TORNADOES
  MAY FORM RAPIDLY ANYWHERE IN THE LINE OF STORMS!

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  EXCELSIOR...JENNY LIND...FORT SMITH REGIONAL AIRPORT...GREENWOOD...
  FORT SMITH...BURNVILLE...BARLING...VAN BUREN...BLOOMER...LAVACA...
  FIGURE FIVE...ALMA...CEDARVILLE...RUDY AND DYER.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 0 AND 20.

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 3508 9427 3522 9440 3540 9443 3565 9447
      3561 9411 3530 9408 3522 9408 3520 9407
TIME...MOT...LOC 0205Z 230DEG 45KT 3545 9467 3533 9445
          3513 9428

$$
4 follow-up statements
570 
WWUS54 KTSA 210227
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
927 PM CDT MON MAY 20 2013

ARC033-131-210245-
/O.CON.KTSA.TO.W.0026.000000T0000Z-130521T0245Z/
CRAWFORD AR-SEBASTIAN AR-
927 PM CDT MON MAY 20 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR NORTHERN
SEBASTIAN AND SOUTHERN CRAWFORD COUNTIES...

AT 922 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM DORA TO CONCORD TO
BLOOMER...MOVING NORTHEAST AT 50 MPH. TORNADOES MAY FORM RAPIDLY
ANYWHERE IN THE LINE OF STORMS!

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
UNIONTOWN...DYER AND CEDARVILLE.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 0 AND 20.

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 3520 9407 3516 9425 3527 9441 3565 9447
      3561 9411 3530 9408 3522 9408
TIME...MOT...LOC 0227Z 230DEG 45KT 3555 9442 3553 9420
          3531 9402

$$
210 
WWUS54 KTSA 210236
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
936 PM CDT MON MAY 20 2013

ARC033-131-210245-
/O.CON.KTSA.TO.W.0026.000000T0000Z-130521T0245Z/
CRAWFORD AR-SEBASTIAN AR-
936 PM CDT MON MAY 20 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR NORTHERN
SEBASTIAN AND CENTRAL CRAWFORD COUNTIES...

AT 931 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM CEDARVILLE TO DYER
TO 7 MILES EAST OF URSULA...MOVING NORTHEAST AT 50 MPH. TORNADOES MAY
FORM RAPIDLY ANYWHERE IN THE LINE OF STORMS!

THIS STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 1 AND 20.

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 3523 9408 3527 9424 3530 9440 3564 9444
      3561 9411 3526 9408
TIME...MOT...LOC 0236Z 230DEG 45KT 3561 9434 3560 9409
          3538 9391

$$
164 
WWUS54 KTSA 210240
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
940 PM CDT MON MAY 20 2013

ARC033-131-210245-
/O.CON.KTSA.TO.W.0026.000000T0000Z-130521T0245Z/
CRAWFORD AR-SEBASTIAN AR-
940 PM CDT MON MAY 20 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR NORTHERN
SEBASTIAN AND CENTRAL CRAWFORD COUNTIES...

AT 935 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
TORNADOES WAS LOCATED ALONG A LINE EXTENDING FROM CEDARVILLE TO 7
MILES NORTH OF DYER TO 15 MILES SOUTHEAST OF DYER...MOVING NORTHEAST 
AT 50 MPH. TORNADOES MAY FORM RAPIDLY ANYWHERE IN THE LINE OF STORMS!

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 5 AND 19.

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 3537 9410 3540 9419 3537 9434 3563 9439
      3561 9411
TIME...MOT...LOC 0240Z 230DEG 45KT 3564 9429 3563 9404
          3541 9386

$$
090 
WWUS54 KTSA 210244
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
944 PM CDT MON MAY 20 2013

ARC033-131-210254-
/O.EXP.KTSA.TO.W.0026.000000T0000Z-130521T0245Z/
CRAWFORD AR-SEBASTIAN AR-
944 PM CDT MON MAY 20 2013

...THE TORNADO WARNING FOR NORTHERN SEBASTIAN AND CENTRAL CRAWFORD
COUNTIES EXPIRES AT 945 PM CDT...

THE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAS MOVED OUT OF 
THE WARNED AREA...THEREFORE THE TORNADO WARNING WILL BE ALLOWED TO 
EXPIRE.

GUSTY WINDS TO 40 MPH AND VERY HEAVY RAIN WILL STILL BE POSSIBLE 
WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 3 AM.

LAT...LON 3537 9410 3540 9419 3537 9434 3563 9439
      3561 9411
TIME...MOT...LOC 0244Z 230DEG 45KT 3567 9424 3566 9399
          3544 9381

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 7:00 PM CDTSevere Thunderstorm WarningTSABenton, Carroll60 min
May 20, 7:04 PM CDTTornado WarningTSABenton, Madison, Washington41 min
May 20, 7:23 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian, Washington67 min
May 20, 7:25 PM CDTTornado WarningTSABenton, Carroll, Madison50 min
May 20, 7:31 PM CDTTornado WarningTSACrawford, Sebastian44 min
May 20, 7:41 PM CDTSevere Thunderstorm WarningTSACarroll, Madison, Washington64 min
May 20, 7:50 PM CDTSevere Thunderstorm WarningTSASebastian70 min
May 20, 7:57 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Sebastian, Washington63 min
May 20, 8:02 PM CDTSevere Thunderstorm WarningTSACrawford58 min
May 20, 8:18 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian57 min
May 20, 8:30 PM CDTTornado WarningTSACrawford, Sebastian60 min
May 20, 8:42 PM CDTSevere Thunderstorm WarningTSACarroll, Madison48 min
May 20, 8:57 PM CDTSevere Thunderstorm WarningTSASebastian63 min
May 20, 9:20 PM CDTTornado WarningTSACrawford, Franklin, Sebastian40 min
May 20, 9:21 PM CDTSpecial Weather StatementTSAFranklin24 min
May 20, 9:24 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison66 min
May 20, 9:38 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin37 min
May 20, 9:43 PM CDTTornado WarningTSAFranklin47 min
May 20, 10:11 PM CDTAreal Flood AdvisoryTSAFranklin, Madison2 hr
May 21, 2:45 AM CDTSpecial Weather StatementTSASebastian45 min
May 21, 9:01 AM CDTSpecial Weather StatementTSASebastian44 min
May 21, 2:58 PM CDTSpecial Weather StatementTSASebastian62 min
May 21, 3:56 PM CDTSpecial Weather StatementTSAFranklin, Sebastian49 min

Nearby

Tornado Warnings in Arkansas, 2013Every tornado warning in 2013Tornadoes in 2013

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.