Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

November 11, 2012LeFlore County, Oklahoma; Sebastian County, Arkansas

NWS Tulsa, OK issued this special weather statement at Nov 11, 2012, 11:03 AM CST for LeFlore County, Oklahoma; Sebastian County, Arkansas. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 11, 2012, 11:03 AM CST (17:03 UTC)
Expired: Nov 11, 2012, 12:00 PM CST
In force: 57 min
Issued by: NWS Tulsa, OK

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 68 km from the middle of the area, began a volume at 17:06 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.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 5.1 hours before the alert went out and 246 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: 535 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Nov 11, 9:27 AM CST, 1 hour 36 minutes earlier.

Area forecast discussion, Nov 11, 9:27 AM CST, 1 hour 36 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Nov 11, 9:45 AM CST, 1 hour 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
945 AM CST SUN NOV 11 2012

ARZ001-002-010-011-019-020-029-OKZ049-053>076-121100-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
945 AM CST SUN NOV 11 2012

...SEVERE STORMS POSSIBLE TODAY...

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TODAY AND TONIGHT.

TORNADO.
	RISK...LIMITED.
	AREA...FAR SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
        ONSET...EARLY AFTERNOON.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...FAR SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

FLASH FLOOD.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

HEAVY RAIN.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

SIGNIFICANT WINDS.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

DISCUSSION...
A LINE OF THUNDERSTORMS WILL PUSH THROUGH NORTHWEST ARKANSAS
AND SOUTHEAST OKLAHOMA BY MID AFTERNOON. SOME OF THESE STORMS
COULD BE SEVERE WITH DAMAGING STRAIGHT-LINE WINDS...ALONG WITH
LOCALLY HEAVY RAINFALL. IN ADDITION...STRONG LOW LEVEL WIND
SHEAR ALONG THE LINE WILL LEAD TO A LIMITED TORNADO THREAT WITHIN
THUNDERSTORM LINE SEGMENTS EARLY THIS AFTERNOON. THE MAIN
THUNDERSTORM ACTIVITY WILL SHIFT EAST OF THE AREA BY MID AFTERNOON
WITH THE SEVERE THREAT ENDING.

STRONG AND GUSTY SOUTH WINDS WILL CONTINUE AHEAD OF A COLD
FRONT THIS MORNING...WITH A ABRUPT SHIFT TO THE NORTH AND SHARPLY
FALLING TEMPERATURES WITH THE FRONTAL PASSAGE.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK LIKELY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
MONDAY THROUGH FRIDAY...NO HAZARDS.
SATURDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT MONDAY WITH TRANQUIL
WEATHER FOR MUCH OF THE WEEK. THE NEXT SYSTEM IS EXPECTED TO
APPROACH THE AREA NEXT WEEKEND WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS BY SATURDAY.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Special weather statement, Nov 11, 7:09 AM CST, 3 hours 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
709 AM CST SUN NOV 11 2012

OKZ057-058-062-063-111415-
CRAIG OK-DELAWARE OK-MAYES OK-OTTAWA OK-
709 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 815 AM CST
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN CRAIG...NORTHWESTERN DELAWARE...NORTHERN MAYES AND
     OTTAWA

AT 709 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTHEAST OF BLUEJACKET TO 8 MILES SOUTHWEST
OF BIG CABIN...MOVING NORTHEAST AT 40 MPH.

A LARGE PORTION OF SOUTHEASTERN CRAIG...NORTHWESTERN DELAWARE...
NORTHERN MAYES AND OTTAWA COUNTIES WILL BE AFFECTED BY THESE STORMS
THROUGH 815 AM CST.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT
WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3699 9461 3672 9461 3642 9535 3694 9505
      3701 9490 3700 9462
TIME...MOT...LOC 1309Z 242DEG 35KT 3690 9500 3644 9527

Special weather statement, Nov 11, 9:02 AM CST, 2 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
902 AM CST SUN NOV 11 2012

ARZ001-010-OKZ063-068>072-111600-
ADAIR OK-BENTON AR-CHEROKEE OK-DELAWARE OK-MCINTOSH OK-MUSKOGEE
OK-SEQUOYAH OK-WASHINGTON AR-
902 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1000 AM CST
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     WESTERN BENTON AND NORTHWESTERN WASHINGTON

IN EAST CENTRAL OKLAHOMA
     CHEROKEE...NORTHEASTERN MUSKOGEE AND NORTHWESTERN SEQUOYAH

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN DELAWARE AND ADAIR

IN SOUTHEAST OKLAHOMA
     NORTHEASTERN MCINTOSH

AT 902 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES NORTHWEST OF COLCORD TO 10 MILES SOUTHWEST OF
GREENLEAF STATE PARK...MOVING EAST AT 25 MPH.

A LARGE PORTION OF WESTERN BENTON...NORTHWESTERN WASHINGTON...
CHEROKEE...SOUTHEASTERN DELAWARE...NORTHEASTERN MCINTOSH...
NORTHEASTERN MUSKOGEE...NORTHWESTERN SEQUOYAH AND ADAIR COUNTIES WILL
BE AFFECTED BY THESE STORMS THROUGH 1000 AM CST.

THESE STORMS WILL BE CAPABLE OF LOCALLY PRODUCING WIND GUSTS TO 50
MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE
SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3552 9479 3549 9543 3644 9467 3651 9440
      3650 9407
TIME...MOT...LOC 1502Z 261DEG 22KT 3629 9471 3554 9528

Special weather statement, Nov 11, 10:03 AM CST, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1003 AM CST SUN NOV 11 2012

ARZ001-002-010-011-019-OKZ068-069-072-074-076-111700-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CRAWFORD AR-HASKELL OK-LE
FLORE OK-MADISON AR-SEQUOYAH OK-WASHINGTON AR-
1003 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1100 AM CST
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     SOUTHEASTERN BENTON...WESTERN CARROLL...NORTHWESTERN CRAWFORD...
     NORTHWESTERN MADISON AND WASHINGTON

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN CHEROKEE AND SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHERN HASKELL AND NORTHERN LE FLORE

IN NORTHEAST OKLAHOMA
     SOUTHERN ADAIR

AT 1003 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ROCKY COMFORT TO BUNCH TO STIGLER...MOVING EAST AT 25
MPH.

A LARGE PORTION OF SOUTHEASTERN BENTON...WESTERN CARROLL...
NORTHWESTERN CRAWFORD...NORTHWESTERN MADISON...WASHINGTON...
SOUTHEASTERN CHEROKEE...NORTHERN HASKELL...NORTHERN LE FLORE...
SEQUOYAH AND SOUTHERN ADAIR COUNTIES WILL BE AFFECTED BY THESE STORMS
THROUGH 1100 AM CST.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT
WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3636 9374 3577 9423 3531 9465 3519 9528
      3568 9484 3630 9433
TIME...MOT...LOC 1603Z 261DEG 23KT 3624 9429 3570 9473
          3528 9511

Special weather statement, Nov 11, 10:26 AM CST, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1026 AM CST SUN NOV 11 2012

OKZ049-073>076-111700-
HASKELL OK-LATIMER OK-LE FLORE OK-PITTSBURG OK-PUSHMATAHA OK-
1026 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1100 AM CST
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     SOUTHERN HASKELL...NORTHWESTERN LE FLORE...SOUTHEASTERN
     PITTSBURG...NORTHERN PUSHMATAHA AND LATIMER

AT 1026 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES SOUTHEAST OF WHITEFIELD TO 7 MILES NORTHWEST
OF DUNBAR...MOVING EAST AT 20 MPH.

A LARGE PORTION OF SOUTHERN HASKELL...NORTHWESTERN LE FLORE...
SOUTHEASTERN PITTSBURG...NORTHERN PUSHMATAHA AND LATIMER COUNTIES
WILL BE AFFECTED BY THESE STORMS THROUGH 1100 AM CST.

THESE STORMS WILL BE CAPABLE OF LOCALLY PRODUCING WIND GUSTS TO 50
MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE
SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3449 9579 3451 9577 3451 9568 3459 9568
      3459 9572 3526 9525 3531 9467 3529 9466
      3530 9462 3445 9522 3444 9579
TIME...MOT...LOC 1626Z 270DEG 16KT 3519 9519 3452 9565

Special weather statement, Nov 11, 10:57 AM CST, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1057 AM CST SUN NOV 11 2012

ARZ001-002-010-011-019-020-OKZ069-072-111800-
ADAIR OK-BENTON AR-CARROLL AR-CRAWFORD AR-FRANKLIN AR-MADISON
AR-SEQUOYAH OK-WASHINGTON AR-
1057 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL NOON CST
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     EASTERN BENTON...CARROLL...CRAWFORD...MADISON AND WASHINGTON

IN WEST CENTRAL ARKANSAS
     NORTHWESTERN FRANKLIN

IN EAST CENTRAL OKLAHOMA
     EASTERN SEQUOYAH

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN ADAIR

AT 1056 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES SOUTHWEST OF WAR EAGLE TO 6 MILES SOUTHWEST OF
MULDROW...MOVING EAST AT 30 MPH.

A LARGE PORTION OF CRAWFORD...FRANKLIN...MADISON...CARROLL...
WASHINGTON...BENTON AND SEQUOYAH COUNTIES WILL BE AFFECTED BY THESE
STORMS THROUGH NOON.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT
WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3547 9394 3543 9437 3545 9441 3542 9442
      3538 9482 3642 9402 3644 9329 3634 9329
TIME...MOT...LOC 1656Z 255DEG 27KT 3622 9395 3536 9464

Special weather statement, Nov 11, 11:03 AM CST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1103 AM CST SUN NOV 11 2012

ARZ019-029-OKZ049-072-074>076-111800-
CRAWFORD AR-HASKELL OK-LATIMER OK-LE FLORE OK-PUSHMATAHA OK-SEBASTIAN
AR-SEQUOYAH OK-
1103 AM CST SUN NOV 11 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL NOON CST
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     SOUTHERN CRAWFORD

IN WEST CENTRAL ARKANSAS
     SEBASTIAN

IN SOUTHEAST OKLAHOMA
     SOUTHEASTERN HASKELL...LE FLORE...NORTHEASTERN PUSHMATAHA AND
     EASTERN LATIMER

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN SEQUOYAH

AT 1102 AM CST...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 3 MILES SOUTH OF GANS TO CLAYTON LAKE STATE
PARK...MOVING NORTHEAST AT 35 MPH. THE INDIVIDUAL STORMS WITHIN THE
LINE WERE MOVING NORTHEAST AT 60 MPH.

A LARGE PORTION OF LE FLORE AND SEBASTIAN COUNTIES AS WELL AS
SOUTHERN CRAWFORD...SOUTHERN SEQUOYAH...EASTERN HASKELL...EASTERN
LATIMER...AND NORTHEASTERN PUSHMATAHA COUNTIES WILL BE AFFECTED BY
THESE STORMS THROUGH NOON.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT
WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3445 9545 3539 9480 3545 9407 3495 9430
      3492 9444 3460 9445 3452 9448 3450 9504
      3448 9504
TIME...MOT...LOC 1702Z 247DEG 31KT 3537 9464 3457 9527

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 11, 4:26 AM CST	Special Weather Statement	TSA	Osage, Washington	49 min
Nov 11, 5:24 AM CST	Special Weather Statement	TSA	Craig, Nowata, Washington	51 min
Nov 11, 5:51 AM CST	Special Weather Statement	TSA	Tulsa	39 min
Nov 11, 6:28 AM CST	Special Weather Statement	TSA	Craig, Mayes, Ottawa, Rogers	47 min
Nov 11, 6:37 AM CST	Special Weather Statement	TSA	Tulsa	38 min
Nov 11, 7:07 AM CST	Special Weather Statement	TSA	Mayes, Wagoner	53 min
Nov 11, 7:09 AM CST	Special Weather Statement	TSA	Ottawa	66 min
Nov 11, 9:02 AM CST	Special Weather Statement	TSA	Adair, Cherokee	58 min
Nov 11, 10:03 AM CST	Special Weather Statement	TSA	Adair, Haskell, Sequoyah	57 min
Nov 11, 10:26 AM CST	Special Weather Statement	TSA	Haskell, Latimer	34 min
Nov 11, 1:02 PM CST	Special Weather Statement	TSA	LeFlore	43 min
Nov 11, 2:28 PM CST	Freeze Watch	TSA	Choctaw, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	13 hr
Nov 11, 5:23 PM CST	Freeze Warning	TSA	Choctaw, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	17 hr
Nov 11, 10:57 AM CST	Special Weather Statement	TSA	Carroll, Crawford, Madison, Washington	63 min
Nov 11, 12:02 PM CST	Special Weather Statement	TSA	Carroll, Franklin, Madison	58 min

Nearby

Special Weather Statements in Oklahoma, 2012 Special Weather Statements in Arkansas, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.