Alert archive / Arkansas / Tornado Warnings in 2011

Tornado Warning 30, NWS Tulsa, OK

April 14, 2011Sebastian County, Arkansas; LeFlore County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 14, 2011, 9:14 PM CDT for Sebastian County, Arkansas; LeFlore County, Oklahoma. It was in force for 61 min. 7 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, 9:14 PM CDT (02:14 UTC)
Expired: Apr 14, 2011, 10:15 PM CDT
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 18 km from the middle of the area, began a volume at 02:17 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

Time	Report	Where	Remark
Apr 14, 9:23 PM CDT	TORNADO	3 Sse Wister, OK	* 3 INJ * A TORNADO ROLLED AND DESTROYED A MOBILE HOME...DAMAGED SEVERAL PERMANENT HOMES...AND SNAPPED OR UPROOTED A NUMBER OF TREES. THE RATING WILL BE EF-1 WITH MAXIMUM WIND SPEEDS OF ABOUT 105 MPH. THE TORNADO LIFTED ABOUT 3 MILES SOUTH OF POTEAU.
Apr 14, 9:24 PM CDT	HAIL 1.75	Wister, OK
Apr 14, 9:30 PM CDT	TSTM WND GST 64	3 Ene Wister, OK
Apr 14, 9:35 PM CDT	TSTM WND GST 73	3 Ene Wister, OK
Apr 14, 9:35 PM CDT	NON-TSTM WND GST 73	3 Ene Wister, OK
Apr 14, 9:35 PM CDT	TORNADO 0	2 Wsw Howe, OK	AN APPARENT ANTICYCLONIC TORNADO DAMAGED A BARN AND SNAPPED OR UPROOTED A NUMBER OF TREES. THE RATING WILL BE EF-1 WITH ESTIMATED MAXIMUM WINDS OF ABOUT 100 MPH. THE TORNADO LIFTED ABOUT 2 MILES NORTHWEST OF HOWE AT 937 PM.
Apr 14, 9:40 PM CDT	TSTM WND DMG	1 S Poteau, OK	NUMEROUS RECREATIONAL VEHICLES BLOWN OVER AND INTO HIGHWAY.

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.

Issued	Product	Office	Lasted
Apr 14, 9:06 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.2 hours before the alert went out and 203 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2194 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

526 
WFUS54 KTSA 150214
TORTSA
ARC131-OKC079-150315-
/O.NEW.KTSA.TO.W.0030.110415T0214Z-110415T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
914 PM CDT THU APR 14 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 1015 PM CDT

* AT 913 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 3 MILES SOUTHWEST OF WISTER...MOVING NORTHEAST
  AT 35 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW LEVEL
  ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  WISTER...HEAVENER...HOWE...BOKOSHE...POTEAU...PANAMA...SPIRO...
  CAMERON...HARTFORD...POCOLA...MIDLAND...HACKETT...BONANZA...
  MANSFIELD...HUNTINGTON...ARKOMA...EXCELSIOR...JENNY LIND...FORT
  SMITH...BURNVILLE...BARLING AND GREENWOOD.

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 3510 9415 3507 9423 3496 9422 3494 9431
      3495 9437 3491 9444 3482 9483 3504 9493
      3519 9488 3530 9467 3528 9467 3528 9464
      3534 9459 3531 9451 3535 9451 3540 9442
      3545 9439 3514 9413
TIME...MOT...LOC 0214Z 241DEG 28KT 3494 9477

$$

2 follow-up statements

528 
WWUS54 KTSA 150227
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
927 PM CDT THU APR 14 2011

ARC131-OKC079-150315-
/O.CON.KTSA.TO.W.0030.000000T0000Z-110415T0315Z/
SEBASTIAN AR-LE FLORE OK-
927 PM CDT THU APR 14 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTHERN
LE FLORE AND SEBASTIAN COUNTIES...

AT 927 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR HOWE...
MOVING NORTHEAST AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW
LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...HOWE...
BOKOSHE...POTEAU...SHADY POINT...PANAMA...SPIRO...CAMERON...
SCULLYVILLE...PATTERSON...HARTFORD...ROCK ISLAND...POCOLA...BRADEN...
JENSON...MIDLAND...HACKETT...BONANZA...ARKOLA...MANSFIELD...
LIBERTY...HUNTINGTON...ARKOMA...MILL CREEK...RYE HILL...EXCELSIOR...
JENNY LIND...BURNVILLE...WITCHERVILLE...DAYTON...BARLING...
GREENWOOD...FORT SMITH...MILLTOWN AND CROSSROADS.

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 3510 9415 3507 9423 3496 9422 3495 9437
      3491 9444 3485 9469 3503 9491 3519 9485
      3530 9467 3528 9467 3528 9464 3534 9459
      3531 9451 3535 9451 3540 9442 3545 9439
      3514 9413
TIME...MOT...LOC 0228Z 241DEG 28KT 3496 9465

$$

274 
WWUS54 KTSA 150236
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
936 PM CDT THU APR 14 2011

ARC131-OKC079-150315-
/O.CON.KTSA.TO.W.0030.000000T0000Z-110415T0315Z/
SEBASTIAN AR-LE FLORE OK-
936 PM CDT THU APR 14 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTHERN
LE FLORE AND SEBASTIAN COUNTIES...

AT 931 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR HOWE...
MOVING NORTHEAST AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW
LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BOKOSHE...
POTEAU...SHADY POINT...PANAMA...CAMERON...PATTERSON...HARTFORD...
SPIRO...SCULLYVILLE...ROCK ISLAND...MIDLAND...POCOLA...JENSON...
ARKOLA...LIBERTY...HACKETT...MANSFIELD...BRADEN...RYE HILL...JENNY
LIND...BONANZA...EXCELSIOR...BURNVILLE...WITCHERVILLE...DAYTON...
HUNTINGTON...BARLING...GREENWOOD...FORT SMITH...MILL CREEK...
MILLTOWN...CROSSROADS AND ARKOMA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

&&

LAT...LON 3510 9415 3507 9423 3496 9422 3495 9437
      3491 9444 3485 9469 3503 9491 3519 9485
      3530 9467 3528 9467 3528 9464 3534 9459
      3531 9451 3535 9451 3540 9442 3545 9439
      3514 9413
TIME...MOT...LOC 0236Z 227DEG 25KT 3500 9462

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:48 PM CDT	Tornado Warning	TSA	Benton	42 min
Apr 14, 9:48 PM CDT	Tornado Warning	TSA	Crawford, Sebastian	42 min
Apr 14, 10:17 PM CDT	Tornado Warning	TSA	Franklin, Sebastian	58 min
Apr 14, 10:28 PM CDT	Tornado Warning	TSA	Crawford, Franklin, Sebastian	62 min
Apr 14, 10:36 PM CDT	Areal Flood Advisory	TSA	Crawford, Franklin, Sebastian	114 min
Apr 14, 11:12 PM CDT	Tornado Warning	TSA	Franklin, Sebastian	33 min
Apr 14, 11:24 PM CDT	Special Weather Statement	TSA	Madison	36 min
Apr 15, 12:43 AM CDT	Special Weather Statement	TSA	Carroll	32 min
Apr 14, 7:01 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	44 min
Apr 14, 7:09 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes	51 min
Apr 14, 7:36 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	39 min
Apr 14, 7:39 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Muskogee, Rogers, Wagoner	51 min
Apr 14, 7:47 PM CDT	Tornado Warning	TSA	Haskell, Latimer, Pittsburg	43 min
Apr 14, 7:54 PM CDT	Tornado Warning	TSA	Delaware	36 min
Apr 14, 7:55 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg, Pushmataha	65 min
Apr 14, 8:15 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	45 min
Apr 14, 8:20 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha	55 min
Apr 14, 8:20 PM CDT	Tornado Warning	TSA	Cherokee, Mayes, Wagoner	40 min
Apr 14, 8:27 PM CDT	Severe Thunderstorm Warning	TSA	Creek	63 min
Apr 14, 8:27 PM CDT	Tornado Warning	TSA	Haskell, Latimer, LeFlore	48 min
Apr 14, 8:29 PM CDT	Special Weather Statement	TSA	Tulsa	31 min
Apr 14, 8:29 PM CDT	Tornado Warning	TSA	Latimer, LeFlore	46 min
Apr 14, 8:33 PM CDT	Tornado Warning	TSA	Haskell, Latimer, LeFlore	42 min
Apr 14, 8:38 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg	28 min
Apr 14, 8:40 PM CDT	Tornado Warning	TSA	Haskell, Latimer, Pittsburg	35 min
Apr 14, 9:00 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg, Pushmataha	30 min
Apr 14, 9:06 PM CDT	Special Weather Statement	TSA	Okmulgee	24 min
Apr 14, 9:21 PM CDT	Tornado Warning	TSA	Latimer	39 min
Apr 14, 9:26 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Muskogee, Okmulgee, Tulsa, Wagoner	64 min
Apr 14, 9:26 PM CDT	Tornado Warning	TSA	Latimer, LeFlore, Pushmataha	64 min
Apr 14, 9:41 PM CDT	Special Weather Statement	TSA	Pittsburg	34 min
Apr 14, 9:58 PM CDT	Tornado Warning	TSA	Wagoner	32 min
Apr 14, 10:00 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Wagoner	30 min
Apr 14, 10:11 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	37 min
Apr 14, 10:14 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Rogers, Wagoner	46 min
Apr 14, 10:26 PM CDT	Tornado Warning	TSA	Choctaw, Pushmataha	34 min
Apr 14, 10:30 PM CDT	Tornado Warning	TSA	LeFlore	45 min
Apr 14, 10:44 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	46 min
Apr 14, 10:50 PM CDT	Special Weather Statement	TSA	Delaware	40 min
Apr 14, 10:56 PM CDT	Special Weather Statement	TSA	Ottawa	19 min
Apr 15, 4:12 AM CDT	Wind Advisory	TSA	Choctaw, Creek, Haskell, Latimer, McIntosh, Muskogee and 10 more	21 hr

Nearby

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