Alert archive / Oklahoma / Tornado Warnings in 2011

Tornado Warning 29, NWS Tulsa, OK

April 14, 2011Latimer County, Pittsburg County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 14, 2011, 9:00 PM CDT for Latimer County, Pittsburg County, Pushmataha County, Oklahoma. It was in force for 30 min. 6 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, 9:00 PM CDT (02:00 UTC)
Expired: Apr 14, 2011, 9:30 PM CDT
In force: 30 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 142 km from the middle of the area, began a volume at 02:04 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, 9:08 PM CDT	TORNADO	4 W Yanush, OK	A TORNADO UPROOTED SMALL TREES AND SNAPPED LARGE BRANCHES. THE TORNADO WAS RATED EF-0 WITH MAXIMUM WINDS ABOUT 85 MPH. THE TORNADO LIFTED ABOUT 2.5 MILES NORTH-NORTHEAST OF YANUSH AT 922 PM.
Apr 14, 9:13 PM CDT	HAIL 1.75	9 S Wilburton, OK	LOTS OF HAIL OF LONG DURATION WITH GOLFBALL SIZE THE LARGEST
Apr 14, 9:17 PM CDT	TSTM WND DMG	Yanush, OK	TREES DOWN. POSSIBLE TORNADO.
Apr 14, 9:22 PM CDT	HAIL 1	Clayton, OK	NICKEL TO QUARTER SIZE HAIL.
Apr 14, 9:38 PM CDT	TSTM WND DMG	3 N Clayton, OK	BARN HEAVILY DAMAGED. POSSIBLE TORNADO.
Apr 14, 9:40 PM CDT	HAIL 1.75	Nashoba, OK

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, 2:28 PM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.0 hours before the alert went out and 176 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: 4948 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 146 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.

581 
WFUS54 KTSA 150200
TORTSA
OKC077-121-127-150230-
/O.NEW.KTSA.TO.W.0029.110415T0200Z-110415T0230Z/

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN LATIMER COUNTY IN SOUTHEAST OKLAHOMA
  SOUTHERN PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA
  NORTHERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 930 PM CDT

* AT 854 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 13 MILES NORTHWEST OF DUNBAR...MOVING EAST AT
  20 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW LEVEL ROTATION...
  A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME. ANOTHER SEVERE 
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED JUST SOUTH 
OF SARDIS...ALSO MOVING EAST AT 20 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORMS INCLUDE...
  DUNBAR...ALBION...KIAMICHI...TUSKAHOMA...STANLEY...NASHOBA...
  CLAYTON...BENGAL AND YANUSH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THE STORMS...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 3451 9579 3452 9578 3452 9568 3459 9568
      3459 9588 3462 9588 3487 9506 3447 9505
      3444 9579
TIME...MOT...LOC 0159Z 265DEG 18KT 3454 9574

$$

2 follow-up statements

814 
WWUS54 KTSA 150210
SVSTSA

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

OKC077-121-127-150230-
/O.CON.KTSA.TO.W.0029.000000T0000Z-110415T0230Z/
PITTSBURG OK-PUSHMATAHA OK-LATIMER OK-
910 PM CDT THU APR 14 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR SOUTHERN
LATIMER...NORTHERN PUSHMATAHA AND SOUTHERN PITTSBURG COUNTIES...

AT 908 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED 7 MILES WEST OF
STANLEY...MOVING EAST AT 45 MPH. THIS IS A DANGEROUS STORM WITH
STRONG LOW LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT 
ANY TIME. ANOTHER SEVERE THUNDERSTORM WITH STRONG ROTATION WAS 4 
MILES SOUTHWEST OF YANUSH...ALSO MOVING EAST AT 45 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THE STORMS INCLUDE...STANLEY...
SARDIS...CLAYTON...ALBION...KIAMICHI...TUSKAHOMA...NASHOBA...BENGAL
AND YANUSH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE NEAR THE PATH OF THESE STORMS...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 3451 9579 3452 9578 3452 9568 3459 9568
      3459 9588 3462 9588 3487 9506 3447 9505
      3444 9579
TIME...MOT...LOC 0209Z 255DEG 38KT 3457 9558

$$

437 
WWUS54 KTSA 150216
SVSTSA

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

OKC077-121-127-150230-
/O.CON.KTSA.TO.W.0029.000000T0000Z-110415T0230Z/
PITTSBURG OK-PUSHMATAHA OK-LATIMER OK-
916 PM CDT THU APR 14 2011

...TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR SOUTHERN
LATIMER...NORTHERN PUSHMATAHA AND SOUTHEASTERN PITTSBURG COUNTIES...

AT 913 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR 
STANLEY...MOVING EAST AT 45 MPH. ANOTHER SEVERE THUNDERSTORM CAPABLE 
OF PRODUCING A TORNADO WAS JUST SOUTHWEST OF YANUSH...ALSO MOVING 
NORTHEAST AT 45 MPH. THESE ARE DANGEROUS STORMS WITH STRONG LOW 
LEVEL ROTATION...TORNADOES ARE OCCURRING OR COULD FORM AT ANY TIME.

SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...SARDIS...
CLAYTON...ALBION...KIAMICHI...TUSKAHOMA...NASHOBA...BENGAL AND
YANUSH.

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 3447 9563 3452 9568 3459 9568 3465 9570
      3487 9506 3447 9505
TIME...MOT...LOC 0216Z 255DEG 38KT 3459 9549

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 7:48 PM CDT	Tornado Warning	TSA	Delaware	42 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, 9:06 PM CDT	Special Weather Statement	TSA	Okmulgee	24 min
Apr 14, 9:14 PM CDT	Tornado Warning	TSA	LeFlore	61 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, 9:48 PM CDT	Tornado Warning	TSA	LeFlore, Sequoyah	42 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, 10:17 PM CDT	Tornado Warning	TSA	LeFlore	58 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, 10:36 PM CDT	Areal Flood Advisory	TSA	LeFlore, Pushmataha, Sequoyah	114 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 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.