Alert archive / Oklahoma / Flash Flood Warnings in 2002

Flash Flood Warning 46, NWS Tulsa, OK

August 14, 2002Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Aug 14, 2002, 12:52 AM CDT for Pushmataha 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: Aug 14, 2002, 12:52 AM CDT (05:52 UTC)
Expired: Aug 14, 2002, 3:45 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 153 km from the middle of the area, began a volume at 05:52 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

Norman, OK (KOUN), launched 00:00Z, 5.9 hours before the alert went out and 200 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: 621 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 298 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 13.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 140552
FFWTUL
OKC127-140845-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1251 AM CDT WED AUG 14 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  SOUTHERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 345 AM CDT

* AT 1251 AM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 7 MILES WEST OF ANTLERS TO 11 MILES    
  EAST OF CLOUDY...MOVING EAST AT 20 MPH.  2 INCHES OF RAIN HAS     
  ALREADY FALLEN IN THE ANTLERS AREA. ANOTHER 2 INCHES WILL BE       
  POSSIBLE ACROSS SOUTHERN PUSHMATAHA COUNTY THROUGH 345 AM CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE ANTLERS...CLOUDY...MOYERS...KOSOMA...SNOW AND KELLOND.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3420 9583 3426 9511 3444 9508 3438 9577

1 follow-up statement

000 
WGUS74 KTSA 140655
FFSTUL
OKC127-140845-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
155 AM CDT WED AUG 14 2002

...FLASH FLOOD WARNING CONTINUES FOR SOUTHERN PUSHMATAHA COUNTY      
   UNTIL 345 AM CDT...

AT 155 AM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH HEAVY 
RAIN ALONG A LINE EXTENDING FROM 4 MILES WEST OF ANTLERS TO 10 MILES 
EAST OF CLOUDY...MOVING SOUTHEAST AT 20 MPH.  ADDITIONAL 
THUNDERSTORMS WERE DEVELOPING OVER SOUTH-CENTRAL OKLAHOMA AND WILL 
LIKELY MOVE EAST INTO PUSHMATAHA COUNTY BY 300 AM.

OVER 3 INCHES OF RAIN HAS ALREADY FALLEN OVER SOUTHWESTERN 
PUSHMATAHA COUNTY.  ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 
345 AM CDT. SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE 
HEAVY RAIN INCLUDE ANTLERS...CORINNE...DELA...RATTAN...CLOUDY... 
MOYERS...FINLEY...KOSOMA ...OLETA AND KELLOND.

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 3417 9578 3418 9511 3437 9506 3436 9576

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 7:53 PM CDT	Flash Flood Warning	TSA	Pawnee	2 hr
Aug 13, 7:56 PM CDT	Flash Flood Warning	TSA	Pawnee	2 hr
Aug 13, 9:43 PM CDT	Severe Thunderstorm Warning	TSA	Haskell	47 min
Aug 13, 10:20 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	40 min

Nearby

Flash Flood Warnings in Oklahoma, 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.