Alert archive / Arkansas / Flash Flood Warnings in 2015

Flash Flood Warning 21, NWS Tulsa, OK

May 9, 20155 counties in Arkansas

NWS Tulsa, OK issued this flash flood warning at May 9, 2015, 8:45 PM CDT for 5 counties in Arkansas. It was in force for 9 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 9, 2015, 8:45 PM CDT (01:45 UTC)
Expired
May 10, 2015, 5:30 AM CDT
In force
9 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 69 km from the middle of the area, began a volume at 01:47 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, 1.8 hours before the alert went out and 142 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 2015-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 2015-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
81 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
881 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
112 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.

107 
WGUS54 KTSA 100145
FFWTSA
ARC033-047-087-131-143-100730-
/O.NEW.KTSA.FF.W.0021.150510T0145Z-150510T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
845 PM CDT SAT MAY 9 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS...
  NORTHEASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...
  SOUTHEASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS...
  SOUTHERN MADISON COUNTY IN NORTHWEST ARKANSAS...

* UNTIL 230 AM CDT

* AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 1 TO 3!   
  OF RAINFALL HAS OCCURRED DURING THE PAST 24 HOURS WITH AN          
  ADDITIONAL 1-3 INCHES POSSIBLE. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  CHARLESTON...OZARK...ALTUS...BOSTON...BRANCH...BRENTWOOD...CASS...
  DENNING...FERN...FORT CHAFFEE...MULBERRY...PETTIGREW...SAINT
  PAUL...WIEDERKEHR VILLAGE AND WITTER.

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 3592 9350 3587 9352 3577 9351 3576 9369
      3538 9370 3536 9375 3540 9380 3532 9381
      3532 9390 3524 9392 3520 9411 3592 9413
      3599 9345 3597 9344

$$
2 follow-up statements
952 
WGUS74 KTSA 100404
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1104 PM CDT SAT MAY 9 2015

ARC033-047-087-131-143-100730-
/O.CON.KTSA.FF.W.0021.000000T0000Z-150510T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD AR-FRANKLIN AR-MADISON AR-SEBASTIAN AR-WASHINGTON AR-
1104 PM CDT SAT MAY 9 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
WASHINGTON...SOUTHERN MADISON AND EASTERN CRAWFORD COUNTIES IN
NORTHWEST ARKANSAS...AND NORTHEASTERN SEBASTIAN AND FRANKLIN COUNTIES
IN WEST CENTRAL ARKANSAS UNTIL 230 AM CDT...

AT 1104 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 POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHARLESTON...OZARK...ALTUS...BOSTON...BRANCH...BRENTWOOD...CASS...
DENNING...FERN...FORT CHAFFEE...MULBERRY...PETTIGREW...SAINT PAUL...
WIEDERKEHR VILLAGE AND WITTER.

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 3592 9350 3587 9352 3577 9351 3576 9369
      3538 9370 3536 9375 3540 9380 3532 9381
      3532 9390 3524 9392 3520 9411 3592 9413
      3599 9345 3597 9344

$$
009 
WGUS54 KTSA 100724
FFWTSA
ARC033-047-087-131-143-101030-
/O.EXT.KTSA.FF.W.0021.000000T0000Z-150510T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
224 AM CDT SUN MAY 10 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  EASTERN CRAWFORD COUNTY IN NORTHWEST ARKANSAS...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS...
  NORTHEASTERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...
  SOUTHEASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS...
  SOUTHERN MADISON COUNTY IN NORTHWEST ARKANSAS...

* UNTIL 530 AM CDT

* AT 221 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 2 TO 4
INCHES OF RAIN HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 2 
EXPECTED. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  CHARLESTON...OZARK...ALTUS...BOSTON...BRANCH...BRENTWOOD...CASS...
  DENNING...FERN...FORT CHAFFEE...MULBERRY...PETTIGREW...SAINT
  PAUL...WIEDERKEHR VILLAGE AND WITTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.

IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY EVEN SPORT 
UTILITY VEHICLES AND LARGE 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 TONIGHT. IT IS EXTREMELY DIFFICULT 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 3592 9350 3587 9352 3577 9351 3576 9369
      3538 9370 3536 9375 3540 9380 3532 9381
      3532 9390 3524 9392 3520 9411 3592 9413
      3599 9345 3597 9344

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:45 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian45 min
May 9, 7:54 PM CDTFlash Flood WarningTSACrawford, Sebastian, Washington6 hr
May 10, 12:46 AM CDTSpecial Weather StatementTSASebastian44 min
May 10, 12:49 AM CDTSpecial Weather StatementTSACrawford, Sebastian56 min
May 10, 1:42 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian48 min
May 10, 1:57 AM CDTFlash Flood WarningTSACrawford, Sebastian, Washington3 hr
May 10, 2:29 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin29 min
May 10, 4:34 AM CDTRiver Flood WarningTSACrawford, Sebastian59 hr
May 10, 4:57 AM CDTAreal Flood WarningTSACrawford, Sebastian, Washington6 hr
May 10, 5:22 AM CDTRiver Flood WarningTSACrawford20 hr
May 10, 5:27 AM CDTAreal Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington6 hr
May 10, 8:11 AM CDTRiver Flood AdvisoryTSACrawford, Franklin37 hr
May 10, 8:19 AM CDTRiver Flood WarningTSAFranklin, Johnson, Logan3 days
May 10, 9:48 AM CDTFlash Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington6 hr
May 10, 10:27 AM CDTSevere Thunderstorm WarningTSACrawford, Sebastian48 min
May 10, 10:51 AM CDTTornado WarningTSASebastian24 min
May 10, 11:01 AM CDTTornado WarningTSASebastian14 min
May 10, 11:03 AM CDTSpecial Weather StatementTSABenton, Carroll, Madison, Washington72 min
May 10, 11:13 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian62 min
May 10, 11:57 AM CDTSevere Thunderstorm WarningTSAMadison48 min
May 10, 12:17 PM CDTSevere Thunderstorm WarningTSACarroll, Madison37 min
May 10, 2:52 PM CDTAreal Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington24 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; radar from the NEXRAD Level II archive.