Alert archive / Oklahoma / Flash Flood Warnings in 2011

Flash Flood Warning 10, NWS Tulsa, OK

April 24, 20117 counties in Oklahoma; Crawford County, Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Apr 24, 2011, 6:48 PM CDT for 7 counties in Oklahoma; Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 6 hr. 13 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 24, 2011, 6:48 PM CDT (23:48 UTC)
Expired: Apr 25, 2011, 1:00 AM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Crawford County, AR, Franklin County, AR, Sebastian County, AR, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McIntosh County, OK, Muskogee County, OK, Pittsburg County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 10 km from the middle of the area, began a volume at 23:52 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 24, 7:18 PM CDT	FLASH FLOOD	Roland, OK	HIGHWAY 64 IN ROLAND CLOSED DUE TO FLASH FLOODING
Apr 24, 7:21 PM CDT	FLASH FLOOD	Fort Smith, AR	STREET FLOODING IN FORT SMITH ON 74TH AND 79TH STREETS.
Apr 24, 7:22 PM CDT	FLASH FLOOD	Arkoma, OK	HOMES AND BUSINESS FLOODED.
Apr 24, 7:23 PM CDT	FLASH FLOOD	Poteau, OK	FLOODING IS 2 FEET DEEP IN DOWNTOWN POTEAU.
Apr 24, 7:32 PM CDT	FLASH FLOOD	Sallisaw, OK	NUMEROUS COUNTY ROADS CLOSED...CARS STRANDED. SOME WATER OVER INTERSTATE 40 IN A FEW LOCATIONS.
Apr 24, 7:36 PM CDT	FLASH FLOOD	Van Buren, AR	MANY COUNTY ROADS CLOSED DUE TO HIGH WATER
Apr 24, 7:40 PM CDT	FLASH FLOOD	Stigler, OK	WATER OVER STATE HIGHWAY 82 AND 31. MANY COUNTY ROADS UNDER WATER...CARS STRANDED.
Apr 24, 7:42 PM CDT	FLASH FLOOD	Chester, AR	HIGHWAY 282 FLOODED ... NEAR I-540 MM 27.
Apr 24, 7:42 PM CDT	FLASH FLOOD	Mountainburg, AR	HIGHWAY 282 FLOODED ... NEAR I-540 MM 27.
Apr 24, 7:43 PM CDT	FLASH FLOOD	Poteau, OK	MANY COUNTY ROADS UNDER WATER AND CLOSED
Apr 24, 7:49 PM CDT	FLASH FLOOD	Van Buren, AR	STREET FLOODING AT HIGHWAY 59 AND SPRUCE AND SOUTH 4TH AND VINE.
Apr 24, 7:50 PM CDT	FLASH FLOOD	Eufaula, OK	WATER OVER THE ROAD REPORTED NEAR PARADISE POINT
Apr 24, 7:51 PM CDT	FLASH FLOOD	Poteau, OK	SWIFT WATER RESCUE UNDERWAY IN POTEAU.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.8 hours before the alert went out and 194 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: 495 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 132 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.

278 
WGUS54 KTSA 242348
FFWTSA
ARC033-047-131-OKC061-077-079-091-101-121-135-250600-
/O.NEW.KTSA.FF.W.0010.110424T2348Z-110425T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
648 PM CDT SUN APR 24 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN NORTHWEST ARKANSAS...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS...
  HASKELL COUNTY IN SOUTHEAST OKLAHOMA...
  LATIMER COUNTY IN SOUTHEAST OKLAHOMA...
  NORTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA...
  PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA...
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...
  SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHERN MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA...

* UNTIL 100 AM CDT MONDAY

* AT 648 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 1 TO 3 
INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL 2 TO 3 
INCHES POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  CEDARVILLE...CHARLESTON...EUFAULA...FORT SMITH...MCALESTER...
  MOUNTAINBURG...NATURAL DAM...OZARK...POTEAU...SALLISAW...STIGLER...
  VAN BUREN...WILBURTON...ALDERSON...ALMA...ALTUS...ARKOMA...
  ASHLAND...BARLING...BLANCO...BLOCKER...BLOOMER...BOKOSHE...
  BONANZA...BRANCH...BRIARTOWN...BRUSHY...BURNVILLE...CAMERON AND
  CANADIAN.

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.

LOW WATER CROSSINGS IN HILLY TERRAIN ARE ESPECIALLY DANGEROUS IN
HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND
ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER
TO CARRY VEHICLES AWAY.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TULSA.

&&

LAT...LON 3538 9370 3539 9379 3531 9381 3531 9391
      3523 9392 3523 9402 3514 9403 3514 9413
      3510 9415 3507 9423 3501 9422 3468 9592
      3469 9610 3505 9609 3516 9600 3565 9447
      3576 9449 3576 9369

$$

1 follow-up statement

923 
WGUS74 KTSA 250158
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
858 PM CDT SUN APR 24 2011

ARC033-047-131-OKC061-077-079-091-101-121-135-250600-
/O.CON.KTSA.FF.W.0010.000000T0000Z-110425T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SEBASTIAN AR-CRAWFORD AR-FRANKLIN AR-MUSKOGEE OK-SEQUOYAH OK-
MCINTOSH OK-HASKELL OK-LE FLORE OK-PITTSBURG OK-LATIMER OK-
858 PM CDT SUN APR 24 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LATIMER...PITTSBURG...
NORTHERN LE FLORE...HASKELL...SOUTHERN MCINTOSH...SEQUOYAH...
SOUTHEASTERN MUSKOGEE...FRANKLIN...CRAWFORD AND SEBASTIAN COUNTIES
UNTIL 100 AM CDT...

AT 852 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 1 TO 3 
INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 2 
INCHES THROUGH 1 AM. SEVERAL COUNTY ROADS ACROSS PARTS OF LE FLORE 
COUNTY IN OKLAHOMA AND CRAWFORD COUNTY IN ARKANSAS ARE UNDERWATER. 
RESIDENTIAL FLOODING HAS BEEN REPORTED IN THE CIYT OF POTEAU.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CEDARVILLE...CHARLESTON...EUFAULA...FORT SMITH...MCALESTER...
MOUNTAINBURG...NATURAL DAM...OZARK...POTEAU...SALLISAW...STIGLER...
VAN BUREN...WILBURTON...ALDERSON...ALMA...ALTUS...ARKOMA...ASHLAND...
BARLING...BLANCO...BLOCKER...BLOOMER...BOKOSHE...BONANZA...BRANCH...
BRIARTOWN...BRUSHY...BURNVILLE...CAMERON AND CANADIAN.

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 FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

LOW WATER CROSSINGS IN HILLY TERRAIN ARE ESPECIALLY DANGEROUS IN
HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND
ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER
TO CARRY VEHICLES AWAY.

&&

LAT...LON 3538 9370 3539 9379 3531 9381 3531 9391
      3523 9392 3523 9402 3514 9403 3514 9413
      3510 9415 3507 9423 3501 9422 3468 9592
      3469 9610 3505 9609 3516 9600 3565 9447
      3576 9449 3576 9369

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:43 PM CDT	River Flood Warning	TSA	Cherokee	4 days
Apr 23, 8:59 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	33 min
Apr 23, 9:18 PM CDT	Special Weather Statement	TSA	Okfuskee	42 min
Apr 23, 9:19 PM CDT	Special Weather Statement	TSA	McIntosh	41 min
Apr 23, 9:42 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	29 min
Apr 23, 9:44 PM CDT	Special Weather Statement	TSA	Cherokee	46 min
Apr 23, 9:57 PM CDT	Special Weather Statement	TSA	Creek	48 min
Apr 23, 10:13 PM CDT	Special Weather Statement	TSA	Tulsa	47 min
Apr 23, 10:22 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Tulsa	38 min
Apr 23, 10:36 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Muskogee, Sequoyah	39 min
Apr 23, 10:41 PM CDT	Special Weather Statement	TSA	Muskogee	34 min
Apr 23, 10:50 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	29 min
Apr 23, 10:57 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	63 min
Apr 23, 11:07 PM CDT	Special Weather Statement	TSA	Creek	53 min
Apr 23, 11:17 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, McIntosh, Muskogee, Sequoyah, Wagoner	5 hr
Apr 23, 11:32 PM CDT	Wind Advisory	TSA	Choctaw, Haskell, Latimer, Pittsburg, Pushmataha	4 hr
Apr 24, 1:50 AM CDT	Special Weather Statement	TSA	Creek	25 min
Apr 24, 2:23 AM CDT	River Flood Warning	TSA	Cherokee	36 hr
Apr 24, 4:44 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	61 min
Apr 24, 5:34 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	41 min
Apr 24, 6:16 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, LeFlore	44 min
Apr 24, 9:12 AM CDT	Areal Flood Advisory	TSA	Adair, Cherokee, Sequoyah	93 min
Apr 24, 3:18 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Creek, Delaware, McIntosh, Muskogee and 4 more	6 hr
Apr 24, 4:44 PM CDT	Special Weather Statement	TSA	Pittsburg	31 min
Apr 24, 5:02 PM CDT	Special Weather Statement	TSA	Muskogee	28 min
Apr 24, 5:16 PM CDT	Tornado Warning	TSA	Haskell, Latimer, Pittsburg	44 min
Apr 24, 5:31 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Haskell, Muskogee, Sequoyah	44 min
Apr 24, 5:47 PM CDT	Tornado Warning	TSA	Haskell, LeFlore, Sequoyah	32 min
Apr 24, 5:58 PM CDT	Special Weather Statement	TSA	Osage	47 min
Apr 24, 5:59 PM CDT	Special Weather Statement	TSA	Creek, Tulsa	46 min
Apr 24, 6:05 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore	55 min
Apr 24, 6:11 PM CDT	Special Weather Statement	TSA	Latimer	34 min
Apr 24, 6:13 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	32 min
Apr 24, 6:16 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	44 min
Apr 24, 6:21 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	39 min
Apr 24, 6:29 PM CDT	Areal Flood Advisory	TSA	LeFlore, Sequoyah	61 min
Apr 24, 6:42 PM CDT	Special Weather Statement	TSA	Rogers	33 min
Apr 24, 6:48 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	42 min
Apr 24, 6:50 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	25 min
Apr 24, 6:52 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	53 min
Apr 23, 7:10 PM CDT	Special Weather Statement	TSA	Madison	50 min
Apr 23, 7:27 PM CDT	Severe Thunderstorm Warning	TSA	Madison	43 min
Apr 23, 7:56 PM CDT	Tornado Warning	TSA	Madison	19 min
Apr 23, 10:15 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
Apr 23, 10:39 PM CDT	River Flood Warning	TSA	Carroll	64 hr
Apr 23, 10:51 PM CDT	Special Weather Statement	TSA	Benton, Carroll, Madison, Washington	54 min
Apr 23, 11:14 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	16 min
Apr 23, 11:50 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Washington	42 min
Apr 24, 12:16 AM CDT	Special Weather Statement	TSA	Washington	44 min
Apr 24, 3:49 AM CDT	Areal Flood Warning	TSA	Benton, Carroll, Madison, Washington	8 hr
Apr 24, 9:51 AM CDT	Flash Flood Warning	TSA	Benton, Carroll, Crawford, Franklin, Madison, Washington	4 hr
Apr 24, 2:05 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	6 hr
Apr 24, 6:24 PM CDT	Special Weather Statement	TSA	Crawford	36 min
Apr 24, 6:54 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin	35 min

Nearby

Flash Flood Warnings in Oklahoma, 2011 Flash Flood Warnings in Arkansas, 2011 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.