Alert archive / Arkansas / Flash Flood Warnings in 2011

Flash Flood Warning 60, NWS Tulsa, OK

May 25, 2011Benton County, Carroll County, Arkansas

NWS Tulsa, OK issued this flash flood warning at May 25, 2011, 2:08 AM CDT for Benton County, Carroll County, Arkansas. It was in force for 112 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
May 25, 2011, 2:08 AM CDT (07:08 UTC)
Expired
May 25, 2011, 4:00 AM CDT
In force
112 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Benton County, AR, Carroll County, AR

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 07:10 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

Springfield, MO (KSGF), launched 00:00Z, 7.1 hours before the alert went out and 66 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2011-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1213 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2011-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1213 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

165 
WGUS54 KTSA 250708
FFWTSA
ARC007-015-250900-
/O.NEW.KTSA.FF.W.0060.110525T0708Z-110525T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
208 AM CDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN BENTON COUNTY IN NORTHWEST ARKANSAS...
  NORTHERN CARROLL COUNTY IN NORTHWEST ARKANSAS...

* UNTIL 400 AM CDT

* AT 206 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAIN NORTH OF A LINE FROM            
  BENTONVILLE TO URBANETTE. THESE STORMS WERE MOVING TO THE          
  NORTHEAST AT 30 MPH! 2 TO 3 INCHES OF RAINFALL HAS ALREADY         
 OCCURRED WITH AN ADDITIONAL INCH POSSIBLE THROUGH 4 AM. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  BENTONVILLE...BERRYVILLE...EUREKA SPRINGS...ROGERS...BEAVER...BELLA
  VISTA...CAVE SPRINGS...GARFIELD...GATEWAY...GRANDVIEW...GREEN
  FOREST...LOWELL...OAK GROVE...PEA RIDGE...RULE...URBANETTE AND WAR
  EAGLE.

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.

&&

LAT...LON 3625 9348 3625 9362 3628 9363 3628 9366
      3630 9366 3631 9387 3624 9387 3623 9426
      3650 9427 3649 9329

$$
1 follow-up statement
601 
WGUS74 KTSA 250906
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
406 AM CDT WED MAY 25 2011

ARC007-015-250921-
/O.EXP.KTSA.FF.W.0060.000000T0000Z-110525T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BENTON AR-CARROLL AR-
406 AM CDT WED MAY 25 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN CARROLL
AND EASTERN BENTON COUNTIES HAS BEEN ALLOWED TO EXPIRE...

THE THREAT OF ADDITIONAL HEAVY RAINFALL HAS ENDED. AN AERIAL FLOOD 
WARNING REMAINS IN EFFECT UNTIL NOON WEDNESDAY AS MANY LOW LYING 
AREAS REMAIN FLOODED DUE TO THE HEAVY RAINFALL THIS EVENING.

LAT...LON 3625 9348 3625 9362 3628 9363 3628 9366
      3630 9366 3631 9387 3624 9387 3623 9426
      3650 9427 3649 9329

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 7:59 PM CDTFlash Flood WarningTSACarroll12 hr
May 24, 9:42 PM CDTSevere Thunderstorm WarningTSABenton48 min
May 24, 9:48 PM CDTTornado WarningTSABenton43 min
May 24, 10:25 PM CDTSevere Thunderstorm WarningTSABenton, Washington65 min
May 24, 10:34 PM CDTTornado WarningTSAWashington26 min
May 24, 10:53 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian67 min
May 24, 10:54 PM CDTTornado WarningTSABenton, Washington36 min
May 24, 10:56 PM CDTTornado WarningTSASebastian49 min
May 24, 11:03 PM CDTTornado WarningTSAWashington42 min
May 24, 11:14 PM CDTFlash Flood WarningTSABenton, Washington3 hr
May 24, 11:15 PM CDTFlash Flood WarningTSACrawford, Franklin, Sebastian3 hr
May 24, 11:27 PM CDTTornado WarningTSACrawford, Franklin, Sebastian33 min
May 24, 11:28 PM CDTSevere Thunderstorm WarningTSABenton, Carroll, Madison, Washington92 min
May 24, 11:31 PM CDTSevere Thunderstorm WarningTSAFranklin, Sebastian29 min
May 24, 11:41 PM CDTTornado WarningTSACrawford, Sebastian34 min
May 24, 11:54 PM CDTFlash Flood WarningTSACarroll, Madison2 hr
May 24, 11:56 PM CDTTornado WarningTSACrawford, Franklin, Sebastian, Washington38 min
May 25, 7:23 AM CDTFlash Flood WarningTSACarroll12 hr

Nearby

Flash Flood Warnings in Arkansas, 2011Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.