Alert archive / Arkansas / Flash Flood Warnings in 2004

Flash Flood Warning 19, NWS Tulsa, OK

April 30, 2004Benton County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Apr 30, 2004, 9:50 PM CDT for Benton County, Arkansas. It was in force for 4 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
Apr 30, 2004, 9:50 PM CDT (02:50 UTC)
Expired
May 1, 2004, 1:45 AM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

County Benton County, AR

The radar

The Tulsa radar (KINX), 111 km from the middle of the area, began a volume at 02:51 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, 2.8 hours before the alert went out and 78 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 2004-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 954 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 2004-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
954 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1102 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 010251
FFWTUL
ARC007-010645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
950 PM CDT FRI APR 30 2004

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  BENTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 145 AM CDT

* AT 949 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  MOVING EAST AT 20 MPH ACROSS BENTON COUNTY. RADAR INDICATES THAT 2 
  TO 3 INCHES OF RAIN WILL FALL IN SOME AREAS. 
 
* SOME LOCATIONS THAT WILL BE AFFECTED BY THE HEAVY RAIN
  INCLUDE BENTONVILLE...ROGERS...LOWELL...GENTRY...PEA RIDGE...
  SPRINGTOWN...HIGHFILL...CAVE SPRINGS...DECATUR...HIWASSE AND
  BELLA VISTA.

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 3639 9457 3619 9459 3624 9399 3651 9398

$$
2 follow-up statements
000 
WGUS74 KTSA 010436
FFSTUL
ARC007-010645-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1135 PM CDT FRI APR 30 2004

...FLASH FLOOD WARNING CONTINUES FOR BENTON COUNTY UNTIL 145 AM   
CDT...

RADAR INDICATES THAT 1 TO 2 INCHES OF RAIN HAS ALREADY FALLEN OVER 
MUCH OF BENTON COUNTY THIS EVENING. ADDITIONAL SHOWERS AND 
THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE AREA AFTER 
MIDNIGHT...WITH AN ADDITIONAL 1 TO 2 INCHES POSSIBLE. 

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN 
INCLUDE WALNUT HILL...ROCKY COMFORT...FAIRMOUNT...MILLER...HILL 
TOP...BENTONVILLE...SILOAM SPRINGS...ROGERS...LOWELL...GENTRY... 
GRAVETTE...PEA RIDGE...GALLITIN...HEALING SPRINGS...SPRINGTOWN... 
HIGHFILL...CAVE SPRINGS...WAR EAGLE...VAUGHN...LARUE...DECATUR... 
CENTERTON...AVOCA...HIWASSE...BELLA VISTA AND GARFIELD.

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 3621 9433 3613 9438 3611 9455 3649 9460
          3649 9395 3623 9386

$$
000 
WGUS74 KTSA 010650
FFSTUL
ARC007-010715-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
150 AM CDT SAT MAY 1 2004

...FLASH FLOOD WARNING FOR BENTON COUNTY HAS EXPIRED...

RADAR INDICATES THE HEAVY RAIN HAS MOVE OUT OF BENTON COUNTY... 
THEREFORE THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. 
ADDITIONAL SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE AREA LATER 
TONIGHT...BUT RAINFALL IS NOT EXPECTED TO CAUSE ANY ADDITIONAL 
FLOODING.

LAT...LON 3634 9438 3622 9422 3652 9379 3669 9400

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 9:07 PM CDTSevere Thunderstorm WarningTSABenton53 min
Apr 30, 9:32 PM CDTTornado WarningTSABenton43 min
Apr 30, 10:11 PM CDTTornado WarningTSABenton, Washington64 min
Apr 30, 11:04 PM CDTSevere Thunderstorm WarningTSACarroll, Madison116 min
Apr 30, 11:19 PM CDTSevere Thunderstorm WarningTSAWashington56 min

Nearby

Flash Flood Warnings in Arkansas, 2004Every flash flood warning in 2004

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.