Alert archive / Arkansas / Flash Flood Warnings in 2015

Flash Flood Warning 37, NWS Tulsa, OK

May 17, 2015Crawford County, Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at May 17, 2015, 2:37 AM CDT for Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 6 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 17, 2015, 2:37 AM CDT (07:37 UTC)
Expired
May 17, 2015, 8:30 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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.6 hours before the alert went out and 186 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 2015-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1727 joules per kilogram.LCLEL10008507005003002001001 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 2015-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.193958Sfc1 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
1727 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1056 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
1.4
Supercell composite
11.8

Open this sounding in Storm Lab

The text

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

047 
WGUS54 KTSA 170737
FFWTSA
ARC033-047-131-171330-
/O.NEW.KTSA.FF.W.0037.150517T0737Z-150517T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
237 AM CDT SUN MAY 17 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS...
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...
  SOUTHERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS...

* UNTIL 830 AM CDT

* AT 236 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO THE WARNED AREA. 2  
  TO 3 INCHES OF RAINFALL IS EXPECTED WITH THESE STORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  CHARLESTON...FORT SMITH...OZARK...VAN BUREN...ALMA...ALTUS...
  BARLING...BLOOMER...BONANZA...BRANCH...BURNVILLE...DENNING...
  DYER...EXCELSIOR...FORT CHAFFEE...FORT SMITH REGIONAL AIRPORT...
  GREENWOOD...HACKETT...HARTFORD...HUNTINGTON...JENNY LIND...
  LAVACA...MANSFIELD...MIDLAND...MULBERRY...WASHBURN AND WIEDERKEHR
  VILLAGE.

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 3538 9370 3536 9375 3540 9380 3532 9381
      3532 9390 3523 9393 3522 9402 3513 9404
      3514 9413 3510 9414 3507 9423 3497 9422
      3496 9424 3493 9445 3548 9444 3568 9369

$$
1 follow-up statement
954 
WGUS74 KTSA 170940
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
440 AM CDT SUN MAY 17 2015

ARC033-047-131-171330-
/O.CON.KTSA.FF.W.0037.000000T0000Z-150517T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD AR-FRANKLIN AR-SEBASTIAN AR-
440 AM CDT SUN MAY 17 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SEBASTIAN...FRANKLIN AND
SOUTHERN CRAWFORD COUNTIES UNTIL 830 AM CDT...

AT 434 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAIN HAD ENDED ACROSS THE WARNED AREA. SOME AREAS HAVE 
RECEIVED ONE TO TWO INCHES OF RAINFALL HAS FALLEN OVER PORTIONS OF 
SOUTHERN CRAWFORD COUNTY AND CENTRAL FRANKLIN COUNTY. NO REPORTS OF 
FLOODING HAVE YET BEEN RECEIVED. 

RUNOFF FROM THIS EXCESSIVE RAINFALL MAY RESULT IN FLASH 
FLOODING...ESPECIALLY NORTH OF ALMA AND FROM WATALULA TO OSARK AND 
MEG. 

SOME OTHER LOCATIONS THAT MAY EXPERIENCE FLASH FLOODING 
INCLUDE...CHARLESTON...FORT SMITH...OZARK...VAN BUREN...ALMA... 
ALTUS...BRANCH...BURNVIL LE...DENNING...DYER...EXCELSIOR...FORT 
CHAFFEE...GREENWOOD...HACKETT...HARTFORD...HUNTINGTON...MANSFIELD... 
MIDLAND...MULBERRY...RUDY...WASHBURN AND WIEDERKEHR VILLAGE.

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 3538 9370 3536 9375 3540 9380 3532 9381
      3532 9390 3523 9393 3522 9402 3513 9404
      3514 9413 3510 9414 3507 9423 3497 9422
      3496 9424 3493 9445 3548 9444 3568 9369

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 12:12 AM CDTSevere Thunderstorm WarningTSABenton, Washington63 min
May 17, 12:59 AM CDTAreal Flood AdvisoryTSABenton, Carroll, Madison, Washington2 hr
May 17, 1:13 AM CDTSevere Thunderstorm WarningTSABenton, Carroll, Crawford, Madison, Washington62 min
May 17, 1:37 AM CDTFlash Flood WarningTSABenton, Carroll, Crawford, Franklin, Madison, Washington6 hr
May 17, 2:15 AM CDTSpecial Weather StatementTSACarroll, Crawford, Madison75 min
May 17, 3:33 AM CDTSpecial Weather StatementTSACrawford, Franklin, Madison, Sebastian27 min
May 17, 4:10 AM CDTSpecial Weather StatementTSAFranklin35 min
May 17, 6:36 AM CDTAreal Flood WarningTSACrawford, Washington8 hr
May 17, 3:12 PM CDTRiver Flood WarningTSACrawford, Sebastian18 hr

Nearby

Flash Flood Warnings in Arkansas, 2015Every flash flood warning in 2015

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.