Alert archive / Oklahoma / Flash Flood Warnings in 2002

Flash Flood Warning 24, NWS Tulsa, OK

April 8, 2002Crawford County, Arkansas; LeFlore County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 8, 2002, 2:36 PM CDT for Crawford County, Arkansas; LeFlore County, Sequoyah County, Oklahoma. It was in force for 3 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 8, 2002, 2:36 PM CDT (19:36 UTC)
Expired
Apr 8, 2002, 6:00 PM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

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

The radar

The Western Arkansas radar (KSRX), 19 km from the middle of the area, began a volume at 19:38 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 194 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 2002-04-08Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
473 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
114 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 081936
FFWTUL
ARC033-OKC079-135-082300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
234 PM CDT MON APR 8 2002

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

* UNTIL 600 PM CDT

* AT 234 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 2 MILES WEST OF CEDARVILLE TO 3 MILES
  NORTH OF BOKOSHE TO 4 MILES NORTHEAST OF TALIHINA...MOVING         
  NORTHEAST AT 30 MPH. RADAR INDICATES THAT AROUND AN INCH OF RAIN   
  HAS ALREADY FALLEN OVER THE WARNED AREA. ANOTHER 1 TO 2 INCHES     
  WILL BE POSSIBLE THROUGH 600 PM CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE GANS...MULDROW...ROLAND...BRUSHY...SHORT...MOFFETT...
  POTEAU...BIG CEDAR...MUSE...WHITESBORO...TALIHINA...HEAVENER...
  FANSHAWE...HOWE...WISTER...CAMERON...PANAMA...BOKOSHE...SPIRO...
  POCOLA...ARKOMA...MOUNTAINBURG...VAN BUREN...ALMA...CEDARVILLE...
  NATURAL DAM...CHESTER...DYER...FIGURE FIVE...RUDY AND LEE CREEK.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...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 3562 9476 3517 9485 3465 9510 3454 9450
          3539 9445 3544 9410 3577 9407
2 follow-up statements
000 
WGUS74 KTSA 082125
FFSTUL
ARC033-047-087-131-OKC079-135-082300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
425 PM CDT MON APR 8 2002

...FLASH FLOOD WARNING CONTINUES FOR MADISON...FRANKLIN...CRAWFORD...
   SEBASTIAN...SEQUOYAH AND LE FLORE COUNTIES UNTIL 600 PM CDT...

AT 420 PM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH VERY HEAVY
RAIN MOVING INTO PORTIONS OF WESTERN ARKANSAS.  THESE THUNDERSTORMS 
WILL MOVE TO THE NORTHEAST AT 20 MPH...AND BE CAPABLE OF PRODUCING 
AN ADDITIONAL ONE TO TWO INCHES OF RAINFALL OVER THE WARNED AREA.

ADDITIONAL THUNDERSTORMS MAY DEVELOP AND MOVE OVER WESTERN ARKANSAS 
THROUGH 600 PM.  ANY ADDITIONAL RAINFALL WILL FURTHER AGGRAVATE THE 
ONGOING FLOODING.  

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND.

LAT...LON 3517 9487 3454 9491 3453 9451 3493 9446
          3532 9398 3541 9373 3578 9370 3580 9355
          3610 9351 3628 9384 3575 9398 3575 9443
          3563 9442 3560 9509 3540 9476 3524 9474
000 
WGUS74 KTSA 082300
FFSTUL
ARC033-047-087-131-OKC079-135-082315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
600 PM CDT MON APR 8 2002

...FLASH FLOOD WARNINGS FOR MADISON...FRANKLIN...CRAWFORD...   
SEBASTIAN...SEQUOYAH AND LE FLORE COUNTIES HAVE BEEN ALLOWED TO 
EXPIRE...

THUNDERSTORMS AND THE ASSOCIATED HEAVY RAINFALL HAVE MOVED TO THE 
EAST OF THE AREA.  ALTHOUGH THE HEAVY RAIN THREAT HAS ENDED...LOW 
WATER CROSSINGS MAY CONTINUE TO BE FLOODED.  MOTORISTS ARE URGED TO 
EXERCISE CAUTION ESPECIALLY ON RURAL ROADWAYS.

LAT...LON 3517 9487 3454 9491 3453 9451 3493 9446
          3532 9398 3541 9373 3578 9370 3580 9355
          3610 9351 3628 9384 3575 9398 3575 9443
          3563 9442 3560 9509 3540 9476 3524 9474

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 7:33 PM CDTFlash Flood WarningTSACarroll, Madison, Washington3 hr
Apr 7, 9:28 PM CDTFlash Flood WarningTSABenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more6 hr
Apr 8, 3:01 AM CDTFlash Flood WarningTSACarroll, Franklin, Madison3 hr
Apr 8, 6:05 AM CDTFlash Flood WarningTSAFranklin, Madison4 hr
Apr 8, 3:05 PM CDTFlash Flood WarningTSASebastian3 hr
Apr 8, 3:18 PM CDTFlash Flood WarningTSAMadison3 hr
Apr 8, 3:51 PM CDTFlash Flood WarningTSAFranklin2 hr
Apr 7, 8:40 PM CDTFlash Flood WarningTSAChoctaw, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 3 more5 hr
Apr 7, 9:14 PM CDTFlash Flood WarningTSAAdair4 hr
Apr 8, 1:59 PM CDTFlash Flood WarningTSALatimer2 hr

Nearby

Flash Flood Warnings in Oklahoma, 2002Flash Flood Warnings in Arkansas, 2002Every flash flood warning in 2002

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.