Alert archive / Oklahoma / Areal Flood Advisories in 2011

Areal Flood Advisory 49, NWS Tulsa, OK

September 18, 20116 counties in Oklahoma

NWS Tulsa, OK issued this areal flood advisory at Sep 18, 2011, 6:59 PM CDT for 6 counties in Oklahoma. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Sep 18, 2011, 6:59 PM CDT (23:59 UTC)
Expired: Sep 18, 2011, 9:00 PM CDT
In force: 2 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Haskell County, OK, Latimer County, OK, LeFlore County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 81 km from the middle of the area, began a volume at 00:00 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, 12.0 hours before the alert went out and 206 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: 1131 J/kg
Mixed-layer CIN: -186 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 399 m²/s²
0-3 km storm-relative helicity: 624 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 27.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Sep 18, 6:32 PM CDT, 27 minutes earlier.

Area forecast discussion, Sep 18, 6:32 PM CDT, 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
632 PM CDT SUN SEP 18 2011

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
COLD FRONT HAS MOVED THROUGH BVO...TUL...RVS WHERE VFR CONDITIONS
ARE EXPECTED TO CONTINUE THROUGH THE NIGHT AND INTO MONDAY. A
LAYER OF MOISTURE MAY SWING SOME CLOUDS THROUGH DURING THE MID TO
LATE EVENING. FRONT SHOULD MOVE THROUGH MLC AROUND 02Z WITH IMPROVING
CONDITION THERE.
THUNDERSTORMS WILL GRADUALLY MOVE THROUGH XNA...FYV...FSM THIS
EVENING. WET GROUND LIKELY TO RESULT IN LOW CLOUDS MIDNIGHT OR
AFTER WITH IFR CIGS/VSBYS LIKELY LATE. CONDITIONS IMPROVING MID TO
LATE MORNING MONDAY...FOLLOWED BY VFR. /SA

&&

.PREV DISCUSSION... /ISSUED 407 PM CDT SUN SEP 18 2011/

DISCUSSION...
SHOWERS AND THUNDERSTORMS ARE DEVELOPING ALONG AND AHEAD OF A COLD
FRONT THAT EXTENDS FROM NEAR NOWATA TO TULSA TO BRISTOW. THE FRONT
WILL CONTINUE TO MOVE SOUTHEAST ACROSS THE AREA THIS EVENING WITH
SHOWERS AND THUNDERSTORMS BECOMING MORE NUMEROUS OVER THE NEXT
COUPLE HOURS. SOME OF THE STORMS MAY BE SEVERE WITH LARGE HAIL AND
DAMAGING WINDS BEING THE MAIN THREAT. HAVE INCLUDED THE PRE FIRST
PERIOD IN THE ZONES TO COVER GREATER CONVECTIVE COVERAGE THAT WILL
TAKE PLACE BETWEEN NOW AND 7 PM.

THE PRECIPITATION WILL BE ENDING BEFORE MIDNIGHT IN MOST PLACES
FOLLOWING THE PASSAGE OF THE FRONT. A COUPLE NICE DAYS ARE ON TAP
MONDAY AND TUESDAY WITH WARM AFTERNOONS AND COOL NIGHTS. THE NEXT
COLD FRONT WILL SWEEP ACROSS THE AREA LATE TUESDAY NIGHT AND
WEDNESDAY. MOISTURE WILL BE LIMITED WITH THIS FRONT SO WILL ONLY
CARRY LOW POPS...MAINLY POST FRONTAL...AS AN UPPER TROUGH SWINGS
ACROSS THE AREA WEDNESDAY NIGHT AND THURSDAY.

COOLER AND DRIER AIR WILL MOVE INTO THE AREA BEHIND THIS FRONT AND
UPPER TROUGH WITH AN EXTENDED STRETCH OF DRY WEATHER AND VERY
LITTLE CLOUDINESS EXPECTED. A WARMING TREND WILL DEVELOP BY NEXT
WEEKEND AS AN UPPER RIDGE BUILDS OVER THE CENTRAL PLAINS. A CLOSED
LOW OVER THE SOUTHEAST U.S. WILL RETROGRADE WEST WITH TIME BUT
WILL LIKELY REMAIN TOO FAR TO OUR EAST AND SOUTH TO HAVE ANY REAL
EFFECT ON OUR WEATHER.

STAYED CLOSE TO GUIDANCE TEMPERATURES THE NEXT COUPLE DAYS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   83  59  83  56 /  50  10  10   0
FSM   83  63  83  55 /  70  40  10   0
MLC   89  61  84  54 /  60  20  10   0
BVO   81  57  83  51 /  20  10  10   0
FYV   79  59  78  47 /  70  40  10   0
BYV   77  59  77  50 /  70  40  10   0
MKO   86  60  82  54 /  60  20  10   0
MIO   78  59  79  53 /  60  20  10   0
F10   85  60  83  54 /  60  20  10   0
HHW   93  64  85  57 /  60  40  10   0

&&

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

SHORT TERM...02
LONG TERM....99
AVIATION...02

Hazardous weather outlook, Sep 18, 4:41 PM CDT, 2 hours 18 minutes before

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In the hours before

Special weather statement, Sep 18, 4:06 PM CDT, 2 hours 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
406 PM CDT SUN SEP 18 2011

OKZ070-071-073>075-182130-
HASKELL OK-LATIMER OK-MCINTOSH OK-MUSKOGEE OK-PITTSBURG OK-
406 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 430 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     WESTERN HASKELL...EASTERN MCINTOSH...NORTHEASTERN PITTSBURG AND
     NORTHERN LATIMER

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN MUSKOGEE

AT 406 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES NORTH OF ENTERPRISE TO 3 MILES NORTH OF
WILBURTON...MOVING EAST AT 25 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THESE STORMS INCLUDE...STIGLER...LEQUIRE...LEWISVILLE...
KINTA...ENTERPRISE...WHITEFIELD...WILBURTON...PANOLA...RED OAK...
QUINTON...BRIARTOWN...PORUM AND ROBBERS CAVE STATE PARK.

THESE STORMS WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH.

LAT...LON 3550 9512 3490 9500 3491 9541 3536 9553
TIME...MOT...LOC 2106Z 270DEG 23KT 3531 9538 3496 9529

Special weather statement, Sep 18, 5:08 PM CDT, 1 hour 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
508 PM CDT SUN SEP 18 2011

OKZ049-182300-
PUSHMATAHA OK-
508 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN SOUTHEAST OKLAHOMA
     SOUTHWESTERN PUSHMATAHA

AT 508 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER ANTLERS...
MOVING EAST AT 20 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS
STORM INCLUDE...ANTLERS...DELA...RATTAN...CLOUDY...MOYERS...FINLEY...
KOSOMA...SNOW AND KELLOND.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 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 3416 9569 3431 9575 3447 9529 3423 9519
      3415 9559
TIME...MOT...LOC 2208Z 252DEG 16KT 3425 9561

Special weather statement, Sep 18, 5:14 PM CDT, 1 hour 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
514 PM CDT SUN SEP 18 2011

ARZ001-OKZ063-182300-
BENTON AR-DELAWARE OK-
514 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN NORTHWEST ARKANSAS
     CENTRAL BENTON

IN NORTHEAST OKLAHOMA
     EASTERN DELAWARE

AT 514 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHEAST
OF COLCORD...MOVING EAST AT 25 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...COLCORD...ROCKY COMFORT...
FAIRMOUNT...MILLER...BENTONVILLE...GENTRY...MAYSVILLE...HEALING
SPRINGS...SPRINGTOWN...HIGHFILL...CAVE SPRINGS...CHEROKEE CITY...
VAUGHN...DECATUR...CENTERTON...HIWASSE AND BELLA VISTA.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 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 3621 9412 3621 9473 3639 9475 3646 9415
TIME...MOT...LOC 2214Z 266DEG 22KT 3630 9463

Special weather statement, Sep 18, 6:11 PM CDT, 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
611 PM CDT SUN SEP 18 2011

ARZ029-OKZ076-190000-
LE FLORE OK-SEBASTIAN AR-
611 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN WEST CENTRAL ARKANSAS
     CENTRAL SEBASTIAN

IN SOUTHEAST OKLAHOMA
     EASTERN LE FLORE

AT 611 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTHEAST
OF CAMERON...MOVING EAST AT 20 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...CAMERON...CROSSROADS...MILLTOWN...
HARTFORD...HACKETT...GREENWOOD...ARKOLA...HUNTINGTON...MIDLAND...
DAYTON...WITCHERVILLE...WASHBURN...BURNVILLE...JENSON...EXCELSIOR...
MANSFIELD AND BLOOMER.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 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 3514 9402 3513 9404 3514 9413 3510 9414
      3507 9423 3504 9422 3496 9453 3513 9461
      3532 9411 3526 9408 3522 9408 3520 9405
TIME...MOT...LOC 2311Z 249DEG 19KT 3508 9447

Special weather statement, Sep 18, 6:37 PM CDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
637 PM CDT SUN SEP 18 2011

OKZ049-073-075-190030-
LATIMER OK-PITTSBURG OK-PUSHMATAHA OK-
637 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN SOUTHEAST OKLAHOMA
     CENTRAL PITTSBURG...CENTRAL PUSHMATAHA AND LATIMER

AT 637 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HAILEYVILLE TO 5 MILES SOUTHWEST OF FINLEY...MOVING
EAST AT 30 MPH.

THESE STORMS WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 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 3492 9565 3500 9507 3432 9504 3419 9562
TIME...MOT...LOC 2337Z 260DEG 24KT 3484 9554 3429 9552

Special weather statement, Sep 18, 6:56 PM CDT, 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
656 PM CDT SUN SEP 18 2011

OKZ073>075-190045-
HASKELL OK-LATIMER OK-PITTSBURG OK-
656 PM CDT SUN SEP 18 2011

...SIGNIFICANT WEATHER ADVISORY...

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

IN SOUTHEAST OKLAHOMA
     HASKELL...NORTHEASTERN PITTSBURG AND NORTHWESTERN LATIMER

AT 657 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES EAST OF
FEATHERSTON...MOVING EAST AT 20 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...MCCURTAIN...STIGLER...LEQUIRE...
LEWISVILLE...KINTA...WHITEFIELD...FEATHERSTON AND QUINTON.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 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 3515 9556 3527 9525 3526 9524 3528 9521
      3534 9505 3510 9495 3498 9548
TIME...MOT...LOC 2357Z 250DEG 19KT 3510 9541

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 7:19 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	56 min
Sep 17, 8:12 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa, Washington	63 min
Sep 17, 8:28 PM CDT	Tornado Warning	TSA	Osage	32 min
Sep 17, 9:13 PM CDT	Special Weather Statement	TSA	Rogers, Tulsa, Wagoner	47 min
Sep 17, 9:38 PM CDT	Special Weather Statement	TSA	Okmulgee	52 min
Sep 17, 9:59 PM CDT	Special Weather Statement	TSA	Muskogee, Okmulgee, Rogers, Wagoner	61 min
Sep 17, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa	21 min
Sep 17, 10:52 PM CDT	Special Weather Statement	TSA	Pawnee	53 min
Sep 17, 11:11 PM CDT	Special Weather Statement	TSA	Haskell, McIntosh, Muskogee, Okmulgee, Wagoner	34 min
Sep 18, 12:34 AM CDT	Special Weather Statement	TSA	Haskell, Latimer	41 min
Sep 18, 3:40 PM CDT	Special Weather Statement	TSA	Tulsa	35 min
Sep 18, 4:03 PM CDT	Special Weather Statement	TSA	Delaware	27 min
Sep 18, 4:06 PM CDT	Special Weather Statement	TSA	Haskell	24 min
Sep 18, 4:08 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	67 min
Sep 18, 4:24 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Sequoyah	66 min
Sep 18, 4:28 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Okmulgee, Wagoner	62 min
Sep 18, 5:08 PM CDT	Special Weather Statement	TSA	Pushmataha	52 min
Sep 18, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Sequoyah, Wagoner	65 min
Sep 18, 5:28 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	62 min
Sep 18, 5:33 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	57 min
Sep 18, 5:42 PM CDT	Tornado Warning	TSA	Adair, Delaware	48 min
Sep 18, 6:37 PM CDT	Special Weather Statement	TSA	Latimer, Pushmataha	53 min
Sep 18, 6:56 PM CDT	Special Weather Statement	TSA	Haskell	49 min
Sep 18, 5:14 PM CDT	Special Weather Statement	TSA	Benton	46 min
Sep 18, 6:11 PM CDT	Special Weather Statement	TSA	Sebastian	49 min

Nearby

Areal Flood Advisories in Oklahoma, 2011 Every areal flood advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.