Alert archive / Oklahoma / Flash Flood Warnings in 2008

Flash Flood Warning 54, NWS Tulsa, OK

April 10, 2008Haskell County, Latimer County, LeFlore County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 10, 2008, 2:56 AM CDT for Haskell County, Latimer County, LeFlore County, Oklahoma. It was in force for 4 hr. 2 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 10, 2008, 2:56 AM CDT (07:56 UTC)
Expired: Apr 10, 2008, 7:00 AM CDT
In force: 4 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Haskell County, OK, Latimer County, OK, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 63 km from the middle of the area, began a volume at 07:59 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 10, 6:00 AM CDT	FLOOD	Red Oak, OK	SH-82 JUSTSOUTH OF RED OAK FLOODED
Apr 10, 6:00 AM CDT	FLOOD	Wister, OK	US-270 BETWEEN WISTER AND HEAVENER FLOODED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.9 hours before the alert went out and 226 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: 570 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 392 m²/s²
0-3 km storm-relative helicity: 550 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.

000 
WGUS54 KTSA 100758
FFWTSA
OKC061-077-079-101200-
/O.NEW.KTSA.FF.W.0054.080410T0756Z-080410T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
256 AM CDT THU APR 10 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN HASKELL COUNTY IN SOUTHEAST OKLAHOMA
  LATIMER COUNTY IN SOUTHEAST OKLAHOMA
  LE FLORE COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 700 AM CDT

* AT 252 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
SCATTERED SHOWERS AND THUNDERSTORMS OVER THE WARNED AREA...MOVING 
NORTHEAST AT 40 MPH. THUNDERSTORMS WILL INCREASE IN COVERAGE BY 4 
AM. RADAR INDICATES THAT 1 TO 3 INCHES OF RAIN HAS ALREADY FALLEN. 
ANOTHER 1 TO 3 INCHES WILL BE POSSIBLE THROUGH 700 AM CDT.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES TWO FEET OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

LAT...LON 3451 9494 3469 9493 3469 9552 3504 9550
      3504 9535 3511 9532 3536 9477 3535 9469
      3528 9467 3533 9460 3529 9446 3451 9446
TIME...MOT...LOC 0756Z 218DEG 38KT 3584 9424

$$

1 follow-up statement

000 
WGUS74 KTSA 100947
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
446 AM CDT THU APR 10 2008

OKC061-077-079-101200-
/O.CON.KTSA.FF.W.0054.000000T0000Z-080410T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HASKELL OK-LE FLORE OK-LATIMER OK-
446 AM CDT THU APR 10 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT FOR
LATIMER...LE FLORE AND SOUTHEASTERN HASKELL COUNTIES...

AT 442 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH HEAVY RAIN MOVING INTO THE WESTERN PORTIONS OF 
THE WARNED AREA...MOVING NORTHEAST AT 35 MPH. RADAR INDICATES THAT 1 
TO 3 INCHES OF RAIN HAS ALREADY FALLEN. ANOTHER 1 TO 2 INCHES WILL 
BE POSSIBLE THROUGH 700 AM CDT.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
INCLUDE FANSHAWE...BIG CEDAR...MCCURTAIN...WISTER...KEOTA...
HEAVENER...HOWE...BOKOSHE...POTEAU...PANAMA...SPIRO...CAMERON AND
POCOLA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES TWO FEET OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

LAT...LON 3451 9494 3469 9493 3469 9552 3504 9550
      3504 9535 3511 9532 3536 9477 3535 9469
      3528 9467 3533 9460 3529 9446 3451 9446
TIME...MOT...LOC 0946Z 241DEG 34KT 3497 9497

$$

What forecasters said that day

The local office's own words before this flash flood warning 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 flash flood warning went out at Apr 10, 1:25 AM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Apr 10, 1:25 AM CDT, 1 hour 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
125 AM CDT THU APR 10 2008

.DISCUSSION...
ONGOING SEVERE WEATHER AND HEAVY RAINFALL WILL CONTINUE THROUGH THE
NIGHT AND INTO THE MORNING HOURS BEFORE MOVING EAST OF THE AREA
LATER TODAY. STRONG UPPER LEVEL LOW OVER NEW MEXICO WILL DEEPEN AND
BECOME NEGATIVELY TILTED AS IT MOVES INTO THE AREA. THIS WILL
ENHANCE THE WIND SHEAR ACROSS THE AREA. WARM FRONT WAS LOCATED NEAR
I40 AT 1 AM...WITH SEVERE STORMS ALONG AND JUST TO THE SOUTH OF IT.
ADDITIONAL CONVECTION AND SEVERE WEATHER WAS ONGOING NEAR THE
SURFACE BOUNDARY BACK THROUGH SOUTHWEST OKLAHOMA AND ON SOUTH ALONG
THE DRYLINE IN TEXAS. SURFACE LOW EXPECTED TO MOVE NORTHEAST AND BE
NEAR ENID BY 12Z. STRONG TO SEVERE CONVECTION WILL BE MAINTAINED
ACROSS THE WARM SECTOR AHEAD OF THE DRYLINE. WITH SUCH STRONG SHEAR
EXPECTED OVER THE AREA /700MB JET OF 50+KT AND 500MB JET OF
70+KT/...TORNADOES WILL CONTINUE TO BE POSSIBLE ESPECIALLY WITH ANY
DISCRETE SUPERCELLS THAT FORM. FLOW BECOMES MORE UNIDIRECTIONAL AND
PARALLEL TO THE DRYLINE BY MORNING...AND ANTICIPATE A SEVERE SQUALL
LINE MOVING THROUGH THE FORECAST AREA. DAMAGING WINDS AND LARGE HAIL
WILL BE LIKELY...WITH ISOLATED TORNADOES/SUPERCELLS POSSIBLE WITHIN
THE LINE. SIGNIFICANT RAINFALL WILL ACCOMPANY ALL OF THIS
ACTIVITY...AND BOTH RIVER FLOODING AND FLASH FLOODING WILL REMAIN A
CONCERN EVEN AFTER THE RAIN ENDS. 3 TO 4 INCHES OF RAINFALL HAS
ALREADY OCCURRED...AND ANOTHER 2 TO 4 INCHES IS STILL POSSIBLE.

AS THIS SYSTEM TRANSLATES EAST...QUESTION BECOMES HOW FAR EAST THE
DRYLINE WILL MAKE IT THIS AFTERNOON. MODEL TENDENCIES ARE TO PUSH
THE DRYLINE EAST TOO QUICKLY. WITH THE SURFACE LOW TAKING A MORE
NORTHERLY TRACK...A MORE WEST DRYLINE LOCATION COULD BE POSSIBLE. A
SLOWER DRYLINE WOULD INCREASE THE SEVERE THREAT DURING THE EARLY
AFTERNOON HOURS ACROSS THE EASTERN FA. SOUTHWESTERLY FLOW BEHIND THE
DRYLINE WILL BRING A QUICK WARM UP THIS AFTERNOON...AND HIGHS TODAY
WILL BE CONTINGENT ON TRACK OF THE DRYLINE. COULD ALSO SEE SOME
GUSTY WINDS ACROSS NE OK AS THE STRONG LOW LEVEL WINDS ARE MIXED
DOWN. WILL FOREGO A WIND ADVISORY FOR NOW...THOUGH CONDITIONS WILL
BE CLOSE.

THE TRAILING COLD FRONT WILL FINALLY SWEEP THROUGH THE REGION
TONIGHT...WITH COOLER TEMPERATURES EXPECTED THROUGH THE WEEKEND.
WRAP AROUND CLOUDS WILL LINGER THROUGH SATURDAY BEFORE SKIES CLEAR
OUT. LOWS ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS MAY FALL
INTO THE LOW TO MID 30S FRIDAY...SATURDAY...AND SUNDAY NIGHT...AND
WILL LIKELY NEED FROST/FREEZE HEADLINES DURING THIS TIME FRAME.
SURFACE RIDGE SHIFTS EAST OF THE AREA MONDAY NIGHT INTO
TUESDAY...BRINGING A RETURN TO SOUTHERLY WINDS AND WARMING
TEMPERATURES. STAYED CLOSE TO GUIDANCE TEMPS AND HAVE MAINTAINED A
DRY FORECAST THROUGH THE EXTENDED PERIOD...WHICH WILL BE A WELCOME
RELIEF FROM ALL OF THE RECENT RAINS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   75  44  61  37 /  60  10  10  10
FSM   76  47  64  39 /  80  10  10  10
MLC   76  45  64  38 /  40  10  10  10
BVO   72  41  58  35 /  60  10  10  10
FYV   71  42  56  34 /  90  10  10  10
BYV   71  44  56  35 / 100  10  10  10
MKO   74  43  61  39 /  60  10  10  10
MIO   72  43  55  35 /  80  10  10  10
F10   73  43  62  38 /  50  10  10  10
HHW   80  50  67  41 /  50  10  10  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 PM THURSDAY FOR OKZ049-OKZ053-OKZ054-
     OKZ055-OKZ056-OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-
     OKZ063-OKZ064-OKZ065-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-
     OKZ071-OKZ072-OKZ073-OKZ074-OKZ075-OKZ076.

AR...FLASH FLOOD WATCH UNTIL 7 PM THURSDAY FOR ARZ001-ARZ002-ARZ010-
     ARZ011-ARZ019-ARZ020-ARZ029.

&&

SHORT TERM...18
LONG TERM....03

Hazardous weather outlook, Apr 9, 4:45 PM CDT, 10 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
445 PM CDT WED APR 9 2008

ARZ001-002-010-011-019-020-029-OKZ049-053>076-101000-
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-
445 PM CDT WED APR 9 2008

...SIGNIFICANT SEVERE WEATHER AND FLASH FLOODING LIKELY
TONIGHT INTO THURSDAY...

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

.DAY ONE...TONIGHT.
TORNADO.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

	AREA AT GREATEST RISK...SOUTHEAST OKLAHOMA AND WEST-CENTRAL ARKANSAS.

SEVERE THUNDERSTORM.
	RISK...SIGNIFICANT.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

	AREA AT GREATEST RISK...SOUTHEAST OKLAHOMA AND WEST-CENTRAL ARKANSAS.

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

	AREA AT GREATEST RISK...NORTHEAST OKLAHOMA.

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

	AREA AT GREATEST RISK...EASTERN OKLAHOMA.

DISCUSSION...
SEVERAL ROUNDS OF SEVERE WEATHER ARE ANTICIPATED ACROSS
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH THURSDAY
AS A POTENT UPPER LEVEL LOW TAKES SHAPE ACROSS THE SOUTHWEST
UNITED STATES TONIGHT AND MOVES ACROSS THE PLAINS ON
THURSDAY. THE AIRMASS ACROSS THE REGION WILL BECOME MORE
FAVORABLE FOR SEVERE THUNDERSTORMS TONIGHT AS A WARM FRONT
THAT IS CURRENTLY ACROSS EXTREME SOUTHEAST OKLAHOMA
SURGES TO THE NORTH. THE WARM FRONT WILL BE ACROSS SOUTHERN
KANSAS AND SOUTHERN MISSOURI BY SUNRISE THURSDAY. THE GREATEST
THREAT FOR SEVERE THUNDERSTORMS WILL BE SOUTH OF THE WARM FRONT
WHERE THE AIRMASS WILL BE MORE UNSTABLE. WITH ADEQUATE DEEP LAYER
SHEAR IN PLACE...SUPERCELLS WILL BE POSSIBLE. LARGE HAIL...DAMAGING
WINDS AND TORNADOES WILL ALL BE POSSIBLE SOUTH OF THE WARM FRONT.
ELEVATED THUNDERSTORMS WILL BE POSSIBLE NORTH OF THE WARM FRONT. SOME
OF THOSE THUNDERSTORMS MAY BECOME SEVERE AS WELL. LARGE HAIL WILL
BE THE PRIMARY CONCERN WITH THESE STORMS.

HEAVY RAIN WILL ALSO BE A MAJOR CONCERN ACROSS EASTERN OKLAHOMA
AND NORTHWEST ARKANSAS AS SEVERAL ROUNDS OF THUNDERSTORMS ROLL
ACROSS THE REGION. 2 TO 4 INCHES OF RAIN WILL BE COMMON ACROSS
THE AREA WITH A FEW LOCATIONS RECORDING UPWARDS OF 7 INCHES OF
RAIN. THIS WILL LIKELY CAUSE FLASH FLOODING OF LOW LYING AREAS.
SEE THE FLASH FLOOD WATCH/OKCFFATSA/ FOR FURTHER INFORMATION.

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

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...SEVERE THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL...
HEAVY RAIN POTENTIAL.
FRIDAY...HIGH WIND POTENTIAL.
SATURDAY...NO HAZARDS.
SUNDAY...NO HAZARDS.
MONDAY...NO HAZARDS.
TUESDAY...NO HAZARDS.

EXTENDED DISCUSSION...
STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO BE ONGOING THURSDAY
MORNING AS THE POTENT UPPER LEVEL LOW MOVES ACROSS KANSAS AND AN
ASSOCIATED SURFACE LOW PUSHES INTO SOUTH-CENTRAL KANSAS. STRONG TO
SEVERE THUNDERSTORMS WILL CONTINUE AHEAD OF THE A DRY LINE/COLD FRONT
THAT WILL EXTEND SOUTH OF THE SURFACE LOW AS IT MOVES OFF TO THE NORTHEAST
DURING THE DAY ON THURSDAY. TORNADOES...LARGE HAIL AND DAMAGING
WILL ALL CONTINUE TO BE POSSIBLE. THE THUNDERSTORMS WILL COME TO AN
END BY THURSDAY EVENING AS THE DRY LINE/COLD FRONT MOVES EAST OF THE
AREA.

DRY WEATHER IS EXPECTED FOR THE REMAINDER OF THE UPCOMING WEEK.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
EMERGENCY MANAGERS SHOULD BE PREPARED FOR A SIGNIFICANT SEVERE
WEATHER AND FLASH FLOODING EVENT TONIGHT INTO THURSDAY.

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

In the hours before

Special weather statement, Apr 10, 1:30 AM CDT, 1 hour 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
130 AM CDT THU APR 10 2008

OKZ070-072-074-100715-
HASKELL OK-MUSKOGEE OK-SEQUOYAH OK-
130 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 215 AM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN MUSKOGEE AND WESTERN SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHEASTERN HASKELL

AT 130 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
WEST OF STIGLER...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...STIGLER...KANIMA...TAMAHA...
SALLISAW...MC KEY...VIAN...GORE...MARBLE CITY...BOX...BRIARTOWN...
PORUM AND WEBBERS FALLS.

THIS STORM 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 3564 9509 3565 9482 3544 9466 3515 9519
      3538 9531
TIME...MOT...LOC 0630Z 220DEG 42KT 3529 9515

Special weather statement, Apr 10, 2:04 AM CDT, 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
204 AM CDT THU APR 10 2008

OKZ060-066-067-070-100745-
MUSKOGEE OK-OKMULGEE OK-TULSA OK-WAGONER OK-
204 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 245 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHERN OKMULGEE...WAGONER AND TULSA

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN MUSKOGEE

AT 204 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES
NORTH OF OKMULGEE...MOVING NORTHEAST AT 40 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...TULSA...LIBERTY...
OKMULGEE...PRESTON...BALD HILL...HECTORVILLE...LEONARD...BIXBY...
BROKEN ARROW...CHOSKA...STONEBLUFF...REDBIRD...COWETA...ONETA AND
HASKELL.

THIS STORM 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 3608 9590 3601 9538 3556 9594 3565 9609
TIME...MOT...LOC 0704Z 211DEG 34KT 3569 9593

Special weather statement, Apr 10, 2:14 AM CDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
214 AM CDT THU APR 10 2008

ARZ019-OKZ069-072-100800-
ADAIR OK-CRAWFORD AR-SEQUOYAH OK-
214 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 300 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     NORTHWESTERN CRAWFORD

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN ADAIR

IN EAST CENTRAL OKLAHOMA
     EASTERN SEQUOYAH

AT 214 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES
NORTHEAST OF SALLISAW...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS
THAT WILL BE AFFECTED BY THIS STORM INCLUDE...SALLISAW...MC KEY...
BRUSHY...SHORT...MARBLE CITY...UNIONTOWN...NATURAL DAM AND LEE CREEK.

THIS STORM 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 3576 9448 3575 9417 3536 9476 3536 9478
      3551 9490 3582 9461
TIME...MOT...LOC 0714Z 232DEG 41KT 3553 9470

Special weather statement, Apr 10, 2:21 AM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
221 AM CDT THU APR 10 2008

OKZ068-069-072-074-100815-
ADAIR OK-CHEROKEE OK-HASKELL OK-SEQUOYAH OK-
221 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 315 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHWESTERN ADAIR

IN EAST CENTRAL OKLAHOMA
     SOUTHEASTERN CHEROKEE AND WESTERN SEQUOYAH

IN SOUTHEAST OKLAHOMA
     NORTHERN HASKELL

AT 221 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES
WEST OF TAMAHA...MOVING NORTHEAST AT 55 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...BUNCH...KANIMA...TAMAHA...MC
KEY...VIAN...MARBLE CITY...BOX AND COOKSON.

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

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 291 AND 306.

LAT...LON 3578 9459 3524 9500 3533 9517 3536 9514
      3539 9514 3539 9512 3541 9509 3547 9508
      3550 9511 3594 9495
TIME...MOT...LOC 0721Z 213DEG 48KT 3540 9505

Special weather statement, Apr 10, 2:41 AM CDT, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
241 AM CDT THU APR 10 2008

ARZ010-100815-
WASHINGTON AR-
241 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 315 AM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     WASHINGTON

AT 241 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
SOUTHWEST OF ODELL...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...SHADY GROVE...ODELL...WALNUT
GROVE...HARMON...FAYETTEVILLE...WEST FORK...LINCOLN...PRAIRIE
GROVE...FARMINGTON...HOGEYE...STRICKLER...MORROW...CLYDE...
CANEHILL...GREENLAND...VINEY GROVE...SAVOY...WHEELER...JOHNSON...
TONTITOWN...ELM SPRINGS AND OAK GROVE.

THIS STORM 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 3609 9400 3576 9434 3576 9449 3577 9450
      3585 9450 3586 9451 3589 9452 3622 9423
TIME...MOT...LOC 0741Z 217DEG 39KT 3577 9448

Special weather statement, Apr 10, 2:55 AM CDT, 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
255 AM CDT THU APR 10 2008

OKZ064>066-100900-
CREEK OK-OKFUSKEE OK-OKMULGEE OK-
255 AM CDT THU APR 10 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 400 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     WESTERN OKMULGEE AND SOUTHERN CREEK

IN EAST CENTRAL OKLAHOMA
     CENTRAL OKFUSKEE

AT 255 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES
NORTHWEST OF CLEARVIEW...MOVING NORTH AT 45 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...OKEMAH...CLEARVIEW...
PHAROAH...OKFUSKEE...PRESTON...BEGGS...HECTORVILLE AND SLICK.

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

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 219 AND 234.

LAT...LON 3587 9628 3586 9589 3538 9610 3542 9638
TIME...MOT...LOC 0755Z 194DEG 39KT 3550 9621

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:01 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	59 min
Apr 9, 7:17 PM CDT	Tornado Warning	TSA	Cherokee, Muskogee, Sequoyah	43 min
Apr 9, 7:18 PM CDT	Tornado Warning	TSA	Choctaw, Pushmataha	27 min
Apr 9, 7:27 PM CDT	Tornado Warning	TSA	Pittsburg	48 min
Apr 9, 7:30 PM CDT	Tornado Warning	TSA	Haskell, LeFlore, Muskogee, Sequoyah	45 min
Apr 9, 7:40 PM CDT	Special Weather Statement	TSA	McIntosh	35 min
Apr 9, 7:47 PM CDT	Tornado Warning	TSA	Pushmataha	58 min
Apr 9, 7:55 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	20 min
Apr 9, 8:02 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	58 min
Apr 9, 8:03 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	27 min
Apr 9, 8:08 PM CDT	Tornado Warning	TSA	Haskell, Latimer, Pittsburg	67 min
Apr 9, 8:10 PM CDT	River Flood Warning	TSA	Okmulgee	9 days
Apr 9, 8:16 PM CDT	Tornado Warning	TSA	LeFlore, Sequoyah	44 min
Apr 9, 8:24 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah, Wagoner	4 hr
Apr 9, 8:29 PM CDT	Tornado Warning	TSA	LeFlore	61 min
Apr 9, 8:41 PM CDT	Special Weather Statement	TSA	Pushmataha	34 min
Apr 9, 8:43 PM CDT	River Flood Warning	TSA	Osage, Tulsa	54 hr
Apr 9, 8:43 PM CDT	River Flood Warning	TSA	Tulsa	60 hr
Apr 9, 8:46 PM CDT	River Flood Warning	TSA	Washington	48 hr
Apr 9, 8:46 PM CDT	River Flood Warning	TSA	Rogers, Tulsa	3 days
Apr 9, 8:50 PM CDT	River Flood Warning	TSA	Adair	36 hr
Apr 9, 8:50 PM CDT	River Flood Warning	TSA	Cherokee	59 hr
Apr 9, 8:52 PM CDT	River Flood Warning	TSA	Cherokee	24 hr
Apr 9, 8:53 PM CDT	Tornado Warning	TSA	Haskell, Latimer, LeFlore	67 min
Apr 9, 9:04 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	29 min
Apr 9, 9:16 PM CDT	River Flood Warning	TSA	LeFlore	5 days
Apr 9, 9:16 PM CDT	River Flood Warning	TSA	LeFlore	6 days
Apr 9, 9:19 PM CDT	River Flood Warning	TSA	Pawnee	41 hr
Apr 9, 9:26 PM CDT	Flash Flood Warning	TSA	Craig, Ottawa	4 hr
Apr 9, 9:28 PM CDT	Special Weather Statement	TSA	LeFlore	47 min
Apr 9, 9:35 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore	5 hr
Apr 9, 9:45 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	47 min
Apr 9, 9:50 PM CDT	Special Weather Statement	TSA	Latimer	40 min
Apr 9, 9:59 PM CDT	River Flood Warning	TSA	Ottawa	4 days
Apr 9, 10:02 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	58 min
Apr 9, 10:07 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	53 min
Apr 9, 10:09 PM CDT	Tornado Warning	TSA	LeFlore, Sequoyah	51 min
Apr 9, 10:14 PM CDT	Special Weather Statement	TSA	Latimer	46 min
Apr 9, 10:22 PM CDT	Tornado Warning	TSA	LeFlore	38 min
Apr 9, 10:38 PM CDT	Flash Flood Warning	TSA	Delaware, Mayes	8 hr
Apr 9, 10:50 PM CDT	Flash Flood Warning	TSA	Pittsburg	8 hr
Apr 9, 10:51 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	44 min
Apr 9, 11:04 PM CDT	Flash Flood Warning	TSA	LeFlore	4 hr
Apr 9, 11:34 PM CDT	Special Weather Statement	TSA	Pittsburg	41 min
Apr 9, 11:55 PM CDT	River Flood Warning	TSA	Osage	15 hr
Apr 10, 12:28 AM CDT	Flash Flood Warning	TSA	Creek, McIntosh, Muskogee, Nowata, Okfuskee, Okmulgee and 6 more	6 hr
Apr 10, 12:31 AM CDT	Special Weather Statement	TSA	Pittsburg	44 min
Apr 10, 12:45 AM CDT	River Flood Warning	TSA	Cherokee, Delaware	14 hr
Apr 10, 12:47 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg, Sequoyah	43 min
Apr 10, 12:52 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah, Wagoner	6 hr
Apr 10, 1:23 AM CDT	Flash Flood Warning	TSA	Craig, Ottawa, Rogers	6 hr
Apr 10, 1:30 AM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	45 min
Apr 10, 2:04 AM CDT	Special Weather Statement	TSA	Okmulgee, Wagoner	41 min
Apr 10, 2:14 AM CDT	Special Weather Statement	TSA	Sequoyah	46 min
Apr 10, 2:20 AM CDT	River Flood Warning	TSA	Sequoyah	30 hr
Apr 10, 2:21 AM CDT	Special Weather Statement	TSA	Sequoyah	54 min
Apr 10, 2:27 AM CDT	River Flood Warning	TSA	Ottawa	3 days
Apr 10, 2:55 AM CDT	Special Weather Statement	TSA	Okfuskee	65 min
Apr 10, 3:36 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	54 min
Apr 10, 3:41 AM CDT	Special Weather Statement	TSA	Mayes, Rogers, Wagoner	64 min
Apr 10, 3:42 AM CDT	Special Weather Statement	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	48 min
Apr 10, 4:08 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Muskogee	82 min
Apr 10, 4:11 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	94 min
Apr 10, 4:29 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	30 min
Apr 10, 4:32 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	88 min
Apr 10, 4:40 AM CDT	Special Weather Statement	TSA	Mayes, Wagoner	65 min
Apr 10, 4:45 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	75 min
Apr 10, 5:02 AM CDT	Special Weather Statement	TSA	Delaware	58 min
Apr 10, 5:45 AM CDT	Special Weather Statement	TSA	Pushmataha	30 min
Apr 10, 5:53 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	52 min
Apr 10, 8:52 AM CDT	River Flood Warning	TSA	Muskogee	29 hr
Apr 10, 8:53 AM CDT	River Flood Warning	TSA	Nowata	12 hr
Apr 10, 8:55 AM CDT	River Flood Warning	TSA	Pushmataha	28 hr
Apr 10, 2:34 PM CDT	Wind Advisory	TSA	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	7 hr

Nearby

Flash Flood Warnings in Oklahoma, 2008 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.