Alert archive / Oklahoma / Tornado Warnings in 2016

Tornado Warning 21, NWS Tulsa, OK

April 26, 2016Adair County, Cherokee County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 26, 2016, 11:44 PM CDT for Adair County, Cherokee County, Sequoyah County, Oklahoma. It was in force for 31 min. 4 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 26, 2016, 11:44 PM CDT (04:44 UTC)
Expired: Apr 27, 2016, 12:15 AM CDT
In force: 31 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Adair County, OK, Cherokee County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 66 km from the middle of the area, began a volume at 04:47 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 26, 11:47 PM CDT	TORNADO	6 W Cookson, OK	A TORNADO SNAPPED AND UPROOTED NUMEROUS TREES...DAMAGED OUTBUILDINGS...AND DESTROYED A BOAT DOCK AT A MARINA ON LAKE TENKILLER.
Apr 27, 12:00 AM CDT	TSTM WND DMG	6 S Eldon, OK	LARGE TREES DOWN
Apr 27, 12:10 AM CDT	TSTM WND DMG	5 W Stilwell, OK	NUMEROUS TREES DOWN. STRUCTURE DAMAGE TO BARN.
Apr 27, 12:25 AM CDT	TSTM WND DMG	Stilwell, OK	TREE DAMAGE. PUBLIC PHOTO POSTED ON BROADCAST MEDIA FACEBOOK PAGE. TIME ESTIMATED VIA RADAR.

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 26, 10:21 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.7 hours before the alert went out and 160 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: 851 J/kg
Mixed-layer CIN: -259 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

956 
WFUS54 KTSA 270444
TORTSA
OKC001-021-135-270515-
/O.NEW.KTSA.TO.W.0021.160427T0444Z-160427T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1144 PM CDT TUE APR 26 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHEASTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHERN ADAIR COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 1215 AM CDT
    
* AT 1144 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 3 MILES SOUTHEAST OF PUMPKIN CENTER...MOVING
  NORTHEAST AT 45 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  STILWELL...                       BUNCH...
  LAKE TENKILLER STATE PARK...      COOKSON...
  ADAIR STATE PARK...               CHEROKEE LANDING STATE PARK...
  MARYETTA...                       CHRISTIE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER
AND PROTECT YOURSELF FROM FLYING DEBRIS.

THIS CLUSTER OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A BUILDING.

&&

LAT...LON 3574 9453 3557 9509 3563 9513 3576 9512
      3599 9467
TIME...MOT...LOC 0444Z 244DEG 38KT 3569 9506 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

1 follow-up statement

653 
WWUS54 KTSA 270509
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1209 AM CDT WED APR 27 2016

OKC021-135-270519-
/O.CAN.KTSA.TO.W.0021.000000T0000Z-160427T0515Z/
SEQUOYAH OK-CHEROKEE OK-
1209 AM CDT WED APR 27 2016

...THE TORNADO WARNING FOR NORTHWESTERN SEQUOYAH AND SOUTHEASTERN
CHEROKEE COUNTIES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
NORTHEASTERN OKLAHOMA.

LAT...LON 3570 9476 3578 9481 3589 9481 3597 9466
      3575 9453
TIME...MOT...LOC 0509Z 245DEG 43KT 3581 9473 

$$

OKC001-270515-
/O.CON.KTSA.TO.W.0021.000000T0000Z-160427T0515Z/
ADAIR OK-
1209 AM CDT WED APR 27 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR SOUTHERN
ADAIR COUNTY...
    
AT 1209 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES SOUTHWEST OF MARYETTA...MOVING NORTHEAST AT 50
MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IN OR NEAR THE PATH INCLUDE...
STILWELL...                       ADAIR STATE PARK...
MARYETTA...                       

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS CLUSTER OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A BUILDING.

&&

LAT...LON 3570 9476 3578 9481 3589 9481 3597 9466
      3575 9453
TIME...MOT...LOC 0509Z 245DEG 43KT 3581 9473 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 8:24 PM CDT	Special Weather Statement	TSA	Pawnee	51 min
Apr 26, 9:14 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	61 min
Apr 26, 9:31 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Osage, Pawnee, Tulsa	59 min
Apr 26, 9:52 PM CDT	Tornado Warning	TSA	Osage	23 min
Apr 26, 10:00 PM CDT	Tornado Warning	TSA	Creek, Osage, Pawnee, Tulsa	30 min
Apr 26, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Washington	47 min
Apr 26, 10:20 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Muskogee, Okmulgee, Osage, Rogers, Tulsa and 1 more	40 min
Apr 26, 10:21 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg	39 min
Apr 26, 10:26 PM CDT	Tornado Warning	TSA	Rogers, Tulsa, Wagoner	34 min
Apr 26, 10:51 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Latimer, Pittsburg, Pushmataha	39 min
Apr 26, 10:56 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Okmulgee and 3 more	49 min
Apr 26, 10:57 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Craig, Mayes, Nowata, Rogers, Wagoner	33 min
Apr 26, 11:01 PM CDT	Tornado Warning	TSA	Cherokee, Mayes, Rogers, Wagoner	44 min
Apr 26, 11:13 PM CDT	Tornado Warning	TSA	Craig	32 min
Apr 26, 11:14 PM CDT	Tornado Warning	TSA	Cherokee, McIntosh, Muskogee, Sequoyah	31 min
Apr 26, 11:24 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers	51 min
Apr 26, 11:27 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Latimer, LeFlore, Pushmataha	48 min
Apr 26, 11:29 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, McIntosh, Mayes, Muskogee, Rogers and 2 more	46 min
Apr 26, 11:35 PM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware, Mayes	25 min
Apr 26, 11:43 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Pushmataha, Sequoyah	32 min
Apr 27, 12:01 AM CDT	Tornado Warning	TSA	Delaware	14 min
Apr 27, 12:06 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	54 min
Apr 27, 12:13 AM CDT	Tornado Warning	TSA	Adair	32 min
Apr 27, 12:16 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, Latimer, LeFlore, Pushmataha and 1 more	59 min
Apr 27, 12:18 AM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	17 min
Apr 27, 8:24 AM CDT	River Flood Warning	TSA	Ottawa	5 days

Nearby

Tornado Warnings in Oklahoma, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.