Alert archive / Oklahoma / Flash Flood Warnings in 2009

Flash Flood Warning 21, NWS Tulsa, OK

May 2, 2009Choctaw County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 2, 2009, 4:07 PM CDT for Choctaw County, Pushmataha County, Oklahoma. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 2, 2009, 4:07 PM CDT (21:07 UTC)
Expired: May 3, 2009, 2:00 AM CDT
In force: 10 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Choctaw County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 155 km from the middle of the area, began a volume at 21:08 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, 9.1 hours before the alert went out and 211 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 450 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 156 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 022107
FFWTSA
OKC023-127-030200-
/O.NEW.KTSA.FF.W.0021.090502T2107Z-090503T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
407 PM CDT SAT MAY 2 2009

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHOCTAW COUNTY IN SOUTHEAST OKLAHOMA
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 900 PM CDT

* AT 405 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM 14 MILES
  WEST OF MOYERS TO HUGO...MOVING NORTHEAST AT 25 MPH. RADAR         
  INDICATES THAT 1 TO 3 INCHES OF RAIN HAS ALREADY FALLEN...WITH THE 
  HEAVIEST AMOUNTS OVER CENTRAL PUSHMATAHA COUNTY. ANOTHER 1 TO 3    
  INCHES WILL BE POSSIBLE THROUGH 900 PM CDT ACROSS BOTH PUSHMATAHA  
  AND CHOCTAW COUNTIES.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...MESSER...SAWYER...ANTLERS...KELLOND...FORT TOWSON...
  KOSOMA...RATTAN...OLETA...DUNBAR...SNOW...CLOUDY...STANLEY...
  CLAYTON...NASHOBA...TUSKAHOMA...KIAMICHI AND ALBION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3388 9554 3394 9558 3387 9577 3392 9590
      3417 9585 3417 9579 3452 9578 3452 9568
      3459 9567 3459 9552 3469 9552 3469 9494
      3451 9494 3450 9504 3425 9503 3424 9513
      3394 9515 3396 9523 3389 9526 3386 9536

$$

3 follow-up statements

000 
WGUS74 KTSA 022246
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
546 PM CDT SAT MAY 2 2009

OKC023-127-030200-
/O.CON.KTSA.FF.W.0021.000000T0000Z-090503T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHOCTAW OK-PUSHMATAHA OK-
546 PM CDT SAT MAY 2 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
PUSHMATAHA AND CHOCTAW COUNTIES...

AT 542 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS CONTINUING OVER MUCH OF 
PUSHMATAHA AND CHOCTAW COUNTIES...MOVING EAST AT 20 MPH.  RADAR 
INDICATES THAT 2 TO 4 INCHES OF RAIN HAS ALREADY FALLEN OVER THE 
LAST 3 HOURS ACROSS A LARGE PORTION OF CHOCTAW COUNTY.  1 TO 3 INCH 
RAINFALL AMOUNTS HAVE BEEN ESTIMATED FURTHER NORTH ACROSS MUCH OF 
PUSHMATAHA COUNTY. ANOTHER ONE HALF TO ONE INCH WILL BE POSSIBLE 
THROUGH 900 PM CDT...WITH AREAS OF FLASH FLOODING LIKELY CONTINUING 
WELL AFTER THE HEAVIEST RAINS HAVE FALLEN.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
INCLUDE DUNBAR...KELLOND...ALBION...KIAMICHI...TUSKAHOMA...STANLEY...
NASHOBA...SNOW...KOSOMA...MOYERS...CLOUDY AND CLAYTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3388 9554 3394 9558 3387 9577 3392 9590
      3417 9585 3417 9579 3452 9578 3452 9568
      3459 9567 3459 9552 3469 9552 3469 9494
      3451 9494 3450 9504 3425 9503 3424 9513
      3394 9515 3396 9523 3389 9526 3386 9536

$$

000 
WGUS74 KTSA 030038
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
738 PM CDT SAT MAY 2 2009

OKC023-127-030200-
/O.CON.KTSA.FF.W.0021.000000T0000Z-090503T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHOCTAW OK-PUSHMATAHA OK-
738 PM CDT SAT MAY 2 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
PUSHMATAHA AND CHOCTAW COUNTIES...

AT 733 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE MAJORITY OF HEAVY RAIN HAD ENDED ACROSS PUSHMATAHA AND 
CHOCTAW COUNTIES.  LIGHT TO MODERATE RAIN WAS BEGINNING TO SPREAD 
NORTHWARD FROM TEXAS INTO PORTIONS OF CHOCTAW COUNTY WHICH WILL 
ENHANCE ANY ONGOING FLASH FLOODING THROUGH 900 PM CDT.  LOCAL 
EMERGENCY MANAGEMENT FOR CHOCTAW COUNTY REPORTS THAT NUMEROUS LOW 
WATER CROSSINGS HAVE FLOODED ACROSS EASTERN PORTIONS OF THE COUNTY. 

SOME LOCATIONS THAT WILL EXPERIENCE ADDITIONAL RAINS THROUGH 9 PM 
INCLUDE HUGO...KENT...ANTERL...CLOUDY...BOSWELL...AND RATTAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
MUCH WATER IS ON THE ROADS. IT ONLY TAKES TWO FEET OF RUSHING WATER
TO CARRY AWAY MOST SPORT UTILITY VEHICLES AND PICKUPS. MOTORISTS
SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. TAKE A DIFFERENT
ROUTE TO REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES.

&&

LAT...LON 3388 9554 3394 9558 3387 9577 3392 9590
      3417 9585 3417 9579 3452 9578 3452 9568
      3459 9567 3459 9552 3469 9552 3469 9494
      3451 9494 3450 9504 3425 9503 3424 9513
      3394 9515 3396 9523 3389 9526 3386 9536

$$

000 
WGUS54 KTSA 030147
FFWTSA
OKC023-127-030700-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-090503T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
847 PM CDT SAT MAY 2 2009

THE NATIONAL WEATHER SERVICE IN TULSA HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CHOCTAW COUNTY IN SOUTHEAST OKLAHOMA
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 200 AM CDT

* AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH HEAVY RAIN OCCURRING ACROSS MUCH OF CHOCTAW AND 
  PUSHMATAHA COUNTIES...MOVING EAST AT 30 MPH.  RADAR INDICATES THAT 
  2 TO 4 INCHES OF RAIN FELL ACROSS MUCH OF CHOCTAW COUNTY WITH    
  THE EARLIER STORMS...WITH 1 TO 3 INCHES COMMON ACROSS PUSHMATAHA   
  COUNTY. THE CURRENT STORMS WILL BE CAPABLE OF PRODUCING AN         
  ADDITIONAL 1 TO 3 INCHES OF RAIN THROUGH 200 AM CDT.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...STANLEY...RATTAN...SNOW...SAWYER...OLETA...CLAYTON...FORT
  TOWSON...CLOUDY...TUSKAHOMA...NASHOBA...KIAMICHI AND ALBION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
MUCH WATER IS ON THE ROADS. IT ONLY TAKES TWO FEET OF RUSHING WATER
TO CARRY AWAY MOST SPORT UTILITY VEHICLES AND PICKUPS. MOTORISTS
SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. TAKE A DIFFERENT
ROUTE TO REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES.

&&

LAT...LON 3388 9554 3394 9558 3387 9577 3392 9590
      3417 9585 3417 9579 3452 9578 3452 9568
      3459 9567 3459 9552 3469 9552 3469 9494
      3451 9494 3450 9504 3425 9503 3424 9513
      3394 9515 3396 9523 3389 9526 3386 9536

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 8:49 PM CDT	River Flood Warning	TSA	Washington	12 hr
May 1, 8:51 PM CDT	River Flood Warning	TSA	Adair	7 hr
May 1, 9:30 PM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Craig, Delaware, Mayes, Nowata and 6 more	12 hr
May 2, 4:15 AM CDT	Special Weather Statement	TSA	Mayes	30 min
May 2, 4:45 AM CDT	Special Weather Statement	TSA	LeFlore	30 min
May 2, 8:49 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	56 min
May 2, 9:29 AM CDT	Special Weather Statement	TSA	Pawnee	31 min
May 2, 9:47 AM CDT	Special Weather Statement	TSA	Pushmataha	43 min
May 2, 10:06 AM CDT	Special Weather Statement	TSA	Latimer	54 min
May 2, 11:27 AM CDT	Special Weather Statement	TSA	Pushmataha	48 min
May 2, 11:32 AM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	18 min
May 2, 12:16 PM CDT	Special Weather Statement	TSA	Pushmataha	29 min
May 2, 2:25 PM CDT	Areal Flood Advisory	TSA	Pushmataha	2 hr
May 2, 3:01 PM CDT	River Flood Warning	TSA	LeFlore	30 hr
May 2, 3:01 PM CDT	River Flood Warning	TSA	LeFlore	6 days
May 2, 3:16 PM CDT	Special Weather Statement	TSA	Choctaw	44 min
May 2, 3:21 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	54 min
May 2, 4:38 PM CDT	Special Weather Statement	TSA	Pushmataha	37 min

Nearby

Flash Flood Warnings in Oklahoma, 2009 Every flash flood warning 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.