Alert archive / Arkansas / Flash Flood Warnings in 2002

Flash Flood Warning 25, NWS Tulsa, OK

April 8, 2002Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Apr 8, 2002, 3:05 PM CDT for Sebastian County, Arkansas. 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, 3:05 PM CDT (20:05 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

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 6 km from the middle of the area, began a volume at 20:09 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, 8.1 hours before the alert went out and 189 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 082005
FFWTUL
ARC131-082300-

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 600 PM CDT

* AT 304 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 11 MILES NORTHWEST OF BONANZA TO 25    
  MILES SOUTHWEST OF HARTFORD...MOVING EAST AT 15 MPH. 1 TO 2        
  INCHES WILL BE POSSIBLE THROUGH 600 PM CDT ACROSS SEBASTIAN COUNTY.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE FORT SMITH...HARTFORD...HACKETT...GREENWOOD...BARLING...
  LAVACA...HUNTINGTON...MIDLAND...BURNVILLE...EXCELSIOR...
  MANSFIELD...BONANZA...JENNY LIND AND BLOOMER.

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 3541 9445 3493 9446 3506 9418 3545 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.

Issued	Product	Office	Counties	Lasted
Apr 7, 7:33 PM CDT	Flash Flood Warning	TSA	Carroll, Madison, Washington	3 hr
Apr 7, 9:28 PM CDT	Flash Flood Warning	TSA	Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more	6 hr
Apr 8, 3:01 AM CDT	Flash Flood Warning	TSA	Carroll, Franklin, Madison	3 hr
Apr 8, 6:05 AM CDT	Flash Flood Warning	TSA	Franklin, Madison	4 hr
Apr 8, 2:36 PM CDT	Flash Flood Warning	TSA	Crawford	3 hr
Apr 8, 3:18 PM CDT	Flash Flood Warning	TSA	Madison	3 hr
Apr 8, 3:51 PM CDT	Flash Flood Warning	TSA	Franklin	2 hr

Nearby

Flash Flood Warnings in Arkansas, 2002 Every 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.