Alert archive / Arkansas / Special Weather Statements in 2008

Special Weather Statement, NWS Tulsa, OK

August 29, 2008Sebastian County, Arkansas

NWS Tulsa, OK issued this special weather statement at Aug 29, 2008, 7:36 PM CDT for Sebastian County, Arkansas. It was in force for 39 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: Aug 29, 2008, 7:36 PM CDT (00:36 UTC)
Expired: Aug 29, 2008, 8:15 PM CDT
In force: 39 min
Issued by: NWS Tulsa, OK

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 28 km from the middle of the area, began a volume at 00:38 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

Springfield, MO (KSGF), launched 00:00Z, 0.6 hours before the alert went out and 214 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: 1386 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1192 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 97 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.

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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 Aug 29, 6:32 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Aug 29, 6:32 PM CDT, 1 hour 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
632 PM CDT FRI AUG 29 2008

.DISCUSSION...

.AVIATION...
ONGOING STORMS SOUTH OF OUTFLOW BOUNDARY ARE EXPECTED TO DIMINISH
AFTER SUNSET...AND WILL MENTION LIGHT FOG ACROSS NORTHWEST
ARKANSAS AS AIRPORTS DID RECORD LIGHT RAINFALL WHICH MAY OFFSET
THE ADVECTION OF LOWER DEWPOINTS OVERNIGHT. CHOSE TO MENTION
THUNDERSTORMS IN VICINITY ACROSS OKLAHOMA TAF SITES...WITH
EXPECTATION OF DRIER DEWPOINTS KEEPING ARKANSAS SITES WITH LESSER
AFTERNOON CONVECTIVE COVERAGE.

&&

.PREV DISCUSSION... /ISSUED 259 PM CDT FRI AUG 29 2008/

DISCUSSION...
VERY INTERESTING FORECAST FOR THE NEXT SEVEN DAYS. SEVERAL
WEAK BOUNDARIES ALONG WITH A WEAK COOL FRONT MOVING SOUTH
THROUGH THE REGION THIS EVENING COULD CAUSE ADDITIONAL
ISOLATED SHOWERS AND THUNDERSTORMS THROUGH THE NIGHT.

RATHER BENIGN WEATHER PATTERN WITH SURFACE HIGH PRESSURE
TO OUR NORTHEAST AND PUSHING SLIGHTLY DRIER AIR OVER THE
FORECAST AREA THROUGH THE LONG WEEKEND BUT COULD SEE SOME
DIURNAL THUNDERSTORMS BUT THINK AFTER SATURDAY THE COVERAGE
WILL BE MINIMAL. TEMPERATURES WILL REMAIN NEAR OR SLIGHTLY
ABOVE LATE SUMMER NORMALS.

THE BIG QUESTION IS HOW WILL GUSTAV AFFECT THE REGION
NEXT WEEK. EVEN THOUGH CONFIDENCE IS STILL LOW ON THE EXACT
TIMING AND TRACK OF THE SYSTEM...MODELS ARE INDICATING
INCREASINGLY LIKELINESS TO BRING THE TRACK CLOSE OR
OVER PORTIONS OF THE FORECAST AREA DURING THE MIDDLE TO
LATER PART OF NEXT WEEK.

IT IS STILL TOO EARLY TO PUT SPECIFICS TO THE FORECAST
BUT THIS TIME FRAME NEEDS TO BE MONITORED DUE TO A
POTENTIAL OF A SIGNIFICANT HEAVY RAIN EVENT WITH THIS
SYSTEM.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

SHORT TERM...07
LONG TERM....17
AVIATION...07

Hazardous weather outlook, Aug 29, 5:01 PM CDT, 2 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
501 PM CDT FRI AUG 29 2008

ARZ001-002-010-011-019-020-029-OKZ049-053>076-301000-
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-
501 PM CDT FRI AUG 29 2008

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWESTS ARKANSAS.
	ONSET...THIS AFTERNOON.

DANGEROUS HEAT.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS.
	ONSET...ONGOING.

DISCUSSION...
STRONG HEATING AND WEAK SURFACE BOUNDARIES HAVE RESULTED IN
THUNDERSTORMS ACROSS OKLAHOMA AND ARKANSAS THIS AFTERNOON.
ENOUGH INSTABILITY WAS PRESENT FOR A STORM OR TWO TO BECOME
SEVERE.  STRONG DOWNBURST WINDS WILL BE THE MAIN RISK.

THE STRONG HEATING TODAY HAS RESULTED IN HEAT INDEXES AROUND
100 DEGREES IN PLACES. PLEASE USE EXTRA CAUTION WHEN
PURSUING OUTDOOR ACTIVITIES THIS AFTERNOON AND EARLY THIS
EVENING.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY...NO HAZARDS.
TUESDAY...THUNDERSTORM POTENTIAL.
WEDNESDAY...THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
THURSDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
ISOLATED THUNDERSTORMS WILL BE POSSIBLE AGAIN SATURDAY. BETTER
THUNDERTORM CHANCES MAY OCCUR TOWARD THE MIDDLE OF NEXT WEEK
AS THE TROPICAL REMNANTS OF GUSTAV APPROACH THE AREA.  SHOULD
GUSTAV GET CLOSE ENOUGH TO EASTERN OKLAHOMA AND NORTHWEST
ARKANSAS HEAVY RAIN MAY BE A PROBLEM.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.

In the hours before

Special weather statement, Aug 29, 6:15 PM CDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
615 PM CDT FRI AUG 29 2008

OKZ073-300000-
PITTSBURG OK-
615 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 700 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     SOUTHERN PITTSBURG

AT 615 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
NORTHEAST OF BLANCO...STATIONARY. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...KIOWA...PITTSBURG...BLANCO AND
SAVANNA.

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3469 9591 3489 9585 3484 9560 3466 9566
TIME...MOT...LOC 2315Z 104DEG 2KT 3477 9574

Special weather statement, Aug 29, 6:26 PM CDT, 1 hour 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
626 PM CDT FRI AUG 29 2008

OKZ049-300000-
PUSHMATAHA OK-
626 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 700 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     WESTERN PUSHMATAHA

AT 626 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
FAR WESTERN PUSHMATAHA COUNTY...MOVING WEST AT 7 MPH..

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3431 9579 3451 9577 3446 9559 3429 9567
TIME...MOT...LOC 2326Z 112DEG 6KT 3441 9573

Special weather statement, Aug 29, 6:38 PM CDT, 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
638 PM CDT FRI AUG 29 2008

OKZ049-073-075-300030-
LATIMER OK-PITTSBURG OK-PUSHMATAHA OK-
638 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 730 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     SOUTHERN PITTSBURG...NORTHERN PUSHMATAHA AND SOUTHWESTERN
     LATIMER

AT 638 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 3 MILES SOUTH OF SAVANNA TO 4 MILES WEST OF
YANUSH...MOVING WEST AT 7 MPH. SOME LOCATIONS THAT WILL BE AFFECTED
BY THESE STORMS INCLUDE...YANUSH...KIOWA...BLANCO...SAVANNA AND
SARDIS.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3486 9591 3476 9528 3464 9533 3472 9593
TIME...MOT...LOC 2338Z 107DEG 6KT 3479 9585 3473 9539

Special weather statement, Aug 29, 7:01 PM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
701 PM CDT FRI AUG 29 2008

OKZ076-300045-
LE FLORE OK-
701 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 745 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     NORTHERN LE FLORE

AT 701 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
SPIRO...MOVING WEST AT 8 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY
THIS STORM INCLUDE...SPIRO...SCULLYVILLE AND COWLINGTON.

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3517 9455 3521 9482 3523 9481 3535 9472
      3531 9466 3528 9467 3529 9463 3530 9464
      3533 9461 3530 9451
TIME...MOT...LOC 0001Z 105DEG 7KT 3525 9464

Special weather statement, Aug 29, 7:14 PM CDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
714 PM CDT FRI AUG 29 2008

OKZ073-300100-
PITTSBURG OK-
714 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 800 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     SOUTHERN PITTSBURG

AT 714 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
FAR SOUTHERN PITTSBURG COUNTY...APPROXIMATELY 9 MILES SOUTH OF
BLANCO...MOVING WEST AT 4 MPH..

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3460 9583 3474 9581 3473 9557 3459 9556
TIME...MOT...LOC 0014Z 090DEG 4KT 3464 9568

Special weather statement, Aug 29, 7:36 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
736 PM CDT FRI AUG 29 2008

ARZ029-OKZ076-300115-
LE FLORE OK-SEBASTIAN AR-
736 PM CDT FRI AUG 29 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 815 PM CDT
FOR THE FOLLOWING COUNTIES...

IN WEST CENTRAL ARKANSAS
     CENTRAL SEBASTIAN

IN SOUTHEAST OKLAHOMA
     EASTERN LE FLORE

AT 736 PM CDT...DOPPLER RADAR INDICATED A CLUSTER OF STRONG
THUNDERSTORM 5 MILES SOUTHEAST OF CAMERON...EXPANDING SLOWLY IN ALL
DIRECTIONS. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS
INCLUDE...POTEAU...CAMERON...HARTFORD...ARKOLA AND MIDLAND.

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3498 9464 3517 9462 3517 9429 3500 9428
TIME...MOT...LOC 0036Z 085DEG 7KT 3507 9450

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 7:01 PM CDT	Special Weather Statement	TSA	Sequoyah	44 min
Aug 29, 7:04 PM CDT	Areal Flood Advisory	TSA	Pittsburg	116 min
Aug 29, 7:14 PM CDT	Special Weather Statement	TSA	Pittsburg	46 min
Aug 29, 7:52 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	37 min
Aug 30, 2:28 PM CDT	Special Weather Statement	TSA	Pawnee	32 min
Aug 30, 3:32 PM CDT	Special Weather Statement	TSA	Osage	28 min
Aug 30, 5:48 PM CDT	Special Weather Statement	TSA	Rogers	27 min
Aug 29, 7:53 PM CDT	Special Weather Statement	TSA	Sebastian	37 min

Nearby

Special Weather Statements in Arkansas, 2008 Every special weather statement in 2008

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.