Alert archive / Arkansas / Flash Flood Warnings in 2001

Flash Flood Warning 1, NWS Tulsa, OK

February 24, 2001Benton County, Washington County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Feb 24, 2001, 1:35 PM CST for Benton County, Washington County, Arkansas. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Feb 24, 2001, 1:35 PM CST (19:35 UTC)
Expired
Feb 24, 2001, 3:30 PM CST
In force
115 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Benton County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 103 km from the middle of the area, began a volume at 19:37 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 12:00Z, 7.6 hours before the alert went out and 89 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 12:00Z on 2001-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2001-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 326 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
429 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
326 m²/s²
0-3 km storm-relative helicity
371 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.

000 
WGUS54 KTSA 241936
FFWTUL
ARC007-143-242130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
135 PM CST SAT FEB 24 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR
  BENTON COUNTY IN NORTHWEST ARKANSAS
  WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 330 PM CST

* AT 133 PM CST DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY
  RAIN ALONG A LINE EXTENDING FROM 5 MILES NORTHWEST OF GARFIELD 
  TO WINSLOW...MOVING NORTHEAST AT 60 MPH WITH ADDITIONAL 
  RAIN COVERING NORTHWEST ARKANSAS.

  RADAR ESTIMATES INDICATE THAT 1 TO 2 INCHES OF RAIN HAS ALREADY
  FALLEN OVER THE WARNED AREA. STORM SPOTTERS REPORTED FLASH 
  FLOODING NEAR BENTONVILLE...WITH FLASH FLOODING LIKELY THROUGHOUT
  BENTON AND WASHINGTON COUNTIES.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS mBRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

LAT...LON 3650 9460 3577 9449 3579 9396 3650 9387

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 1:09 PM CSTSevere Thunderstorm WarningTSAWashington66 min
Feb 24, 1:13 PM CSTSevere Thunderstorm WarningTSACrawford, Sebastian47 min
Feb 24, 1:31 PM CSTSevere Thunderstorm WarningTSABenton44 min
Feb 24, 1:40 PM CSTSevere Thunderstorm WarningTSACarroll, Franklin, Madison65 min
Feb 24, 2:15 PM CSTFlash Flood WarningTSAFranklin, Madison2 hr

Nearby

Flash Flood Warnings in Arkansas, 2001Every flash flood warning in 2001

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.