Alert archive / Oklahoma / Flash Flood Warnings in 2004

Flash Flood Warning 30, NWS Tulsa, OK

July 2, 2004LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Jul 2, 2004, 10:16 AM CDT for LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian 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
Jul 2, 2004, 10:16 AM CDT (15:16 UTC)
Expired
Jul 2, 2004, 2:00 PM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

Counties Crawford County, AR, Sebastian County, AR, LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 22 km from the middle of the area, began a volume at 15:16 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, 3.3 hours before the alert went out and 177 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 2004-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1342 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 12:00Z on 2004-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
1342 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
29 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 021516
FFWTUL
ARC033-131-OKC079-135-021900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1016 AM CDT FRI JUL 2 2004

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA
  CRAWFORD COUNTY IN NORTHWEST ARKANSAS
  LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 200 PM CDT

* AT 1016 AM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM VAN BUREN TO 14 MILES WEST OF PANAMA...
  MOVING SOUTHEAST AT 25 MPH. RADAR INDICATES THAT 3 TO 4 INCHES     
  OF RAIN HAS ALREADY FALLEN OVER THE WARNED AREA. ANOTHER 2 INCHES  
  WILL BE POSSIBLE THROUGH 200 PM CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE SALLISAW...GANS...MULDROW...ROLAND...VIAN...BRUSHY...
  SHORT...MARBLE CITY...MOFFETT...POTEAU...CAMERON...PANAMA...
  SPIRO...POCOLA...ARKOMA...FORT SMITH...HACKETT...GREENWOOD...
  BARLING...EXCELSIOR...BONANZA...JENNY LIND...VAN BUREN AND FIGURE
  FIVE.

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.

LAT...LON 3564 9443 3562 9506 3499 9466 3523 9414

$$
2 follow-up statements
000 
WGUS74 KTSA 021657
FFSTUL
ARC033-131-OKC079-135-021900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1150 AM CDT FRI JUL 2 2004

...FLASH FLOOD WARNING CONTINUES FOR CRAWFORD...SEBASTIAN...SEQUOYAH
   AND LE FLORE COUNTIES UNTIL 200 PM CDT...

AT 1150 AM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH VERY 
HEAVY RAIN OVER MUCH OF CRAWFORD AND SEBASTIAN COUNTIES...MOVING
EAST AT 25 MPH. 

FLOODING WAS REPORTED IN WESTERN SEBASTIAN COUNTY...WHERE HIGHWAY 45 
WAS CLOSED NEAR BONANZA DUE TO HIGH WATER. SIGNIFICANT FLOODING WAS 
ALSO REPORTED IN THE GREENWOOD AREA IN SEBASTIAN COUNTY.

RADAR INDICATES THAT 3 TO 6 INCHES INCHES OF RAIN HAS ALREADY FALLEN 
OVER THE WARNED AREA. ANOTHER HALF INCH TO AN INCH WILL BE POSSIBLE 
THROUGH 200 PM CDT...MAINLY OVER CRAWFORD AND SEBASTIAN COUNTIES.

WHILE RAINFALL HAS ENDED OVER LE FLORE AND SEQUOYAH 
COUNTIES...SIGNIFICANT RUNOFF WILL CONTINUE.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR IS
OCCURRING. RESIDENTS LIVING ALONG STREAMS...CREEKS AND DRAINAGE
DITCHES SHOULD BE READY TO TAKE IMMEDIATE ACTION IF FLOODING IS
OBSERVED. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATER BY FOOT OR BY
AUTO...YOU MAY BE SWEPT AWAY BY THE STRONG CURRENT. 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.

LAT...LON 3564 9481 3474 9498 3498 9434 3573 9400

$$
000 
WGUS74 KTSA 021846
FFSTUL
ARC033-131-OKC079-135-021900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
145 PM CDT FRI JUL 2 2004

...FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 200 PM CDT FOR   
   CRAWFORD...SEBASTIAN...SEQUOYAH AND NORTHERN LE FLORE COUNTIES...

AT 145 PM CDT...RADAR INDICATED ONLY A FEW LINGERING SHOWERS ACROSS 
EAST-CENTRAL OKLAHOMA AND WEST-CENTRAL ARKANSAS.  RADAR AND RAIN 
GAGE MEASUREMENTS INDICATE THAT 3 TO 6 INCHES OF RAIN FELL ACROSS 
PORTIONS OF EAST-CENTRAL OKLAHOMA AND WEST CENTRAL ARKANSAS THIS 
MORNING. ALTHOUGH THE HEAVY RAIN HAS ENDED...A FEW ROADS MAY REMAIN 
FLOODED OR IMPASSABLE DUE TO HIGH WATER. 

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.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 12:02 AM CDTSevere Thunderstorm WarningTSASequoyah43 min
Jul 2, 12:44 AM CDTSevere Thunderstorm WarningTSAOsage61 min
Jul 2, 3:52 AM CDTSevere Thunderstorm WarningTSATulsa53 min
Jul 2, 5:58 AM CDTFlash Flood WarningTSATulsa3 hr
Jul 2, 6:05 PM CDTSevere Thunderstorm WarningTSACraig, Nowata40 min
Jul 2, 6:41 PM CDTSevere Thunderstorm WarningTSACraig49 min
Jul 2, 6:50 PM CDTSevere Thunderstorm WarningTSADelaware, Ottawa55 min

Nearby

Flash Flood Warnings in Oklahoma, 2004Flash 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.