Alert archive / Oklahoma / Special Weather Statements in 2009

Special Weather Statement, NWS Tulsa, OK

July 4, 2009McIntosh County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 4, 2009, 6:49 PM CDT for McIntosh County, Oklahoma. It was in force for 56 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: Jul 4, 2009, 6:49 PM CDT (23:49 UTC)
Expired: Jul 4, 2009, 7:45 PM CDT
In force: 56 min
Issued by: NWS Tulsa, OK

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 82 km from the middle of the area, began a volume at 23:51 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, 11.8 hours before the alert went out and 161 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: 785 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1666 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

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 Jul 4, 6:35 PM CDT, 14 minutes earlier.

Area forecast discussion, Jul 4, 6:35 PM CDT, 14 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
635 PM CDT SAT JUL 4 2009

.AVIATION...

.DISCUSSION...
COLD FRONT STARTING TO PUSH INTO FAR NORTHEAST OKLAHOMA EARLY THIS
EVENING.  SCATTERED SHOWERS/THUNDERSTORMS HAVE DEVELOPED AHEAD OF
FRONT ACROSS EAST CENTRAL OKLAHOMA...WITH LIMITED SURFACE HEATING...
BEHIND INITIAL OUTFLOW BOUNDARY. THIS ACTIVITY MAY CONTINUE TO
INCREASE IN COVERAGE AS FRONT APPROACHES BY MID TO LATE
EVENING...WITH BEST THUNDERSTORM CHANCES IN THE MLC/FSM AREAS THIS
EVENING INTO THE OVERNIGHT HOURS. LOW CLOUDS COULD DEVELOP BEHIND
FRONT EARLY SUNDAY MORNING WITH CLOUD DECKS SLOWLY INCREASING
THROUGHOUT THE DAY.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...HEAT ADVISORY UNTIL 7 PM SATURDAY FOR OKZ049-OKZ053-OKZ073-
     OKZ075-OKZ076.

AR...NONE.
&&

AVIATION...12

Hazardous weather outlook, Jul 4, 5:02 PM CDT, 1 hour 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
502 PM CDT SAT JUL 4 2009

ARZ001-002-010-011-019-020-029-OKZ049-053>076-051000-
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-
502 PM CDT SAT JUL 4 2009

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM.
RISK...ELEVATED.
AREA...SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.
ONSET...LATE THIS AFTERNOON.

AREA AT GREATEST RISK...FAR SOUTHEAST OKLAHOMA.

DANGEROUS HEAT.
RISK...LIMITED.
AREA...FAR SOUTHEAST OKLAHOMA.
ONSET...ONGOING.

DISCUSSION...
AN OUTFLOW BOUNDARY WAS PUSHING SOUTHWARD ACROSS SOUTHEAST
OKLAHOMA LATE THIS AFTERNOON.  HOT AND HUMID AIR WAS LOCATED
TO THE SOUTH OF THE OUTFLOW BOUNDARY ACROSS FAR SOUTHEAST
OKLAHOMA.  AS THE OUTFLOW BOUNDARY MOVES INTO THIS AIR A
SEVERE THUNDERSTORM OR TWO FORM.  GIVEN A WARM ATMOSPHERE
AND MARGINAL WIND SHEAR...THE PRIMARY RISK WILL BE STRONG
DOWNBURST WINDS.

THUNDERSTORMS WILL STILL BE POSSIBLE FURTHER NORTH AS THE
TRUE COLD FRONT MOVES OUT OF KANSAS AND NORTHWEST OKLAHOMA
INTO EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.  AFTER THE
OUTFLOW BOUNDARY MOVES OUT OF FAR SOUTHEAST OKLAHOMA SEVERE
THUNDERSTRORM CHANCES WILL REMAIN THIS EVENING BUT WILL BE
MUCH SMALLER THAN THEY WERE THIS AFTERNOON.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED...ESPECIALLY ACROSS FAR
SOUTHEAST OKLAHOMA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SUNDAY...THUNDERSTORM POTENTIAL.
MONDAY...NO HAZARDS.
TUESDAY...NO HAZARDS.
WEDNESDAY...NO HAZARDS.
THURSDAY...NO HAZARDS.
FRIDAY...NO HAZARDS.

EXTENDED DISCUSSION...
THE COLD FRONT WILL NOT EXIT SOUTHEAST OKLAHOMA AND WEST CENTRAL
ARKANSAS UNTIL THE DAYLIGHT HOURS ON SUNDAY.  THUS...THUNDERSTORMS
WILL REMAIN IN THE FORECAST.  THUNDERSTORM CHANCES WILL END BY
SUNDAY EVENING.

COOLER AND LESS HUMID CONDITIONS CAN BE EXPECTED FOR A GOOD PART
OF SUNDAY AND MONDAY BEFORE A WARMING TREND WILL ENSUE.  BY THE
MIDDLE OF THE UPCOMING WEEK THE WEATHER WILL ONCE AGAIN BE
DOMINATED BY HIGH PRESSURE ALOFT BUILDING EASTWARD INTO THE
PLAINS FROM THE ROCKY MOUNTAIN STATES.  VERY WARM WEATHER ALONG
WITH INCREASING HUMIDITY CAN BE EXPECTED BY LATE NEXT WEEK.

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

In the hours before

Special weather statement, Jul 4, 4:11 PM CDT, 2 hours 38 minutes before

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Special weather statement, Jul 4, 5:02 PM CDT, 1 hour 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
502 PM CDT SAT JUL 4 2009

OKZ073-042230-
PITTSBURG OK-
502 PM CDT SAT JUL 4 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 530 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     SOUTHERN PITTSBURG

AT 503 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES
SOUTHWEST OF KIOWA...MOVING EAST AT 30 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...KIOWA...PITTSBURG AND BLANCO.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3468 9589 3468 9606 3474 9609 3490 9562
      3469 9553 3460 9588
TIME...MOT...LOC 2203Z 251DEG 25KT 3469 9594

Special weather statement, Jul 4, 5:27 PM CDT, 1 hour 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
527 PM CDT SAT JUL 4 2009

OKZ073-042300-
PITTSBURG OK-
527 PM CDT SAT JUL 4 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 600 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     SOUTHERN PITTSBURG

AT 527 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
SOUTHWEST OF BLANCO...MOVING EAST AT 20 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...PITTSBURG...BLANCO...
HARTSHORNE...HAILEYVILLE AND DOW.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3478 9589 3490 9554 3481 9551 3472 9552
      3466 9584
TIME...MOT...LOC 2227Z 254DEG 17KT 3472 9580

Special weather statement, Jul 4, 6:17 PM CDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
617 PM CDT SAT JUL 4 2009

OKZ065-066-042345-
OKFUSKEE OK-OKMULGEE OK-
617 PM CDT SAT JUL 4 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 645 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHERN OKMULGEE

IN EAST CENTRAL OKLAHOMA
     EASTERN OKFUSKEE

AT 618 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
OKFUSKEE...MOVING EAST AT 25 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...WILSON...OKFUSKEE...OKMULGEE...
DEWAR...GRAYSON...SCHULTER AND MORRIS.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3565 9623 3565 9618 3563 9582 3547 9586
      3547 9587 3541 9588 3552 9626
TIME...MOT...LOC 2318Z 281DEG 22KT 3558 9620

Special weather statement, Jul 4, 6:38 PM CDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
638 PM CDT SAT JUL 4 2009

OKZ073>075-050015-
HASKELL OK-LATIMER OK-PITTSBURG OK-
638 PM CDT SAT JUL 4 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 715 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     SOUTHERN HASKELL...EASTERN PITTSBURG AND NORTHERN LATIMER

AT 638 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES
NORTHWEST OF WILBURTON...MOVING EAST AT 25 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...LEQUIRE...WILBURTON...PANOLA
AND RED OAK.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3489 9545 3507 9548 3514 9503 3494 9499
      3492 9500
TIME...MOT...LOC 2338Z 262DEG 21KT 3499 9536

Special weather statement, Jul 4, 6:49 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
649 PM CDT SAT JUL 4 2009

OKZ065-066-070-071-073-074-050045-
HASKELL OK-MCINTOSH OK-MUSKOGEE OK-OKFUSKEE OK-OKMULGEE OK-PITTSBURG
OK-
649 PM CDT SAT JUL 4 2009

...SIGNIFICANT WEATHER ALERT...

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

IN NORTHEAST OKLAHOMA
     SOUTHERN OKMULGEE

IN EAST CENTRAL OKLAHOMA
     CENTRAL MUSKOGEE AND SOUTHEASTERN OKFUSKEE

IN SOUTHEAST OKLAHOMA
     MCINTOSH...WESTERN HASKELL AND NORTHEASTERN PITTSBURG

AT 649 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM GRAYSON TO 4 MILES SOUTH OF HENRYETTA...MOVING
EAST AT 35 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS
INCLUDE...WILSON...PHAROAH...OKMULGEE...HENRYETTA...BRYANT...DEWAR...
HOFFMAN...GRAYSON...SCHULTER...MORRIS...EUFAULA...CHECOTAH...
RAIFORD...VIVIAN...STIDHAM...ONAPA...PIERCE...HITCHITA...
RENTIESVILLE...COUNCIL HILL AND WARNER.

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

LAT...LON 3551 9525 3520 9544 3531 9612 3567 9619
TIME...MOT...LOC 2349Z 280DEG 29KT 3552 9587 3538 9596

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 3:59 AM CDT	Heat Advisory	TSA	Choctaw, Haskell, Latimer, McIntosh, Muskogee, Okfuskee and 3 more	15 hr
Jul 4, 12:29 PM CDT	Special Weather Statement	TSA	LeFlore	46 min
Jul 4, 1:00 PM CDT	Special Weather Statement	TSA	Latimer	45 min
Jul 4, 1:43 PM CDT	Special Weather Statement	TSA	Pittsburg	47 min
Jul 4, 1:52 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	53 min
Jul 4, 2:54 PM CDT	Special Weather Statement	TSA	Pittsburg	36 min
Jul 4, 3:26 PM CDT	Special Weather Statement	TSA	Latimer	34 min
Jul 4, 4:11 PM CDT	Special Weather Statement	TSA	Pittsburg	64 min
Jul 4, 5:02 PM CDT	Special Weather Statement	TSA	Pittsburg	28 min
Jul 4, 5:27 PM CDT	Special Weather Statement	TSA	Pittsburg	33 min
Jul 4, 6:17 PM CDT	Special Weather Statement	TSA	Okmulgee	28 min
Jul 4, 6:38 PM CDT	Special Weather Statement	TSA	Latimer	37 min
Jul 4, 6:50 PM CDT	Special Weather Statement	TSA	Haskell	55 min
Jul 4, 11:51 AM CDT	Special Weather Statement	TSA	Crawford, Washington	39 min
Jul 4, 12:22 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	53 min

Nearby

Special Weather Statements in Oklahoma, 2009 Every special weather statement in 2009

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.