Alert archive / Oklahoma / Flash Flood Warnings in 2002

Flash Flood Warning 19, NWS Tulsa, OK

April 7, 2002Adair County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 7, 2002, 9:14 PM CDT for Adair County, Oklahoma. 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: Apr 7, 2002, 9:14 PM CDT (02:14 UTC)
Expired: Apr 8, 2002, 1:30 AM CDT
In force: 4 hr
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Adair County, OK

The radar

The Western Arkansas radar (KSRX), 79 km from the middle of the area, began a volume at 02:30 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 00:00Z, 2.2 hours before the alert went out and 129 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: 472 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 333 m²/s²
0-3 km storm-relative helicity: 365 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 080214
FFWTUL
OKC001-080630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
914 PM CDT SUN APR 7 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  ADAIR COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 130 AM CDT

* HEAVY RAINS DURING THE DAY AND EVENING HAVE SATURATED THE GROUND
  ACROSS ADAIR COUNTY.  RAINFALL OF 2 TO 3 INCHES HAS BEEN MEASURED.
  THE ADAIR COUNTY EMERGENCY MANAGMENET REPORTED WATER RISING QUICKLY
  IN MANY CREEKS AND SMALL STREAMS.  WITH AN ADDITIONAL 1 TO 2 INCHES
  OF RAIN EXPECTED BY 1AM FLASH FLOODING OF LOW-LYING AREAS IS
  LIKELY.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE STILWELL...BUNCH...BARON...CHRISTIE...PROCTOR...WESTVILLE
  AND WATTS.

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 3617 9457 3565 9447 3565 9480 3617 9479

1 follow-up statement

000 
WGUS74 KTSA 080306
FFSTUL
OKC001-023-061-077-079-091-101-121-127-135-080630-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1005 PM CDT SUN APR 7 2002

...FLASH FLOOD WARNING CONTINUES FOR ADAIR...
   SOUTHERN MUSKOGEE...SEQUOYAH...SOUTHERN MCINTOSH...HASKELL...
   LE FLORE...PITTSBURG...LATIMER...PUSHMATAHA AND CHOCTAW 
   COUNTIES UNTIL 130 AM CDT...

...A DANGEROUS FLASH FLOOD SITUATION HAS DEVELOPED ACROSS SOUTHEAST 
OKLAHOMA...

AT 955 PM RAIN...HEAVY AT TIMES...CONTINUED TO FALL ACROSS THE 
ENTIRE WARNED AREA.  RAINFALL OF 2 TO 4 INCHES IS COMMON WITH 5 TO 6 
INCHES REPORTED FROM THE ANTLERS AREA TOWARD WILBURTON.

THROUGH MIDNIGHT THE HEAVIEST RAIN WILL FALL ACROSS PARTS OF 
LE FLORE COUNTY...WITH RAIN CONTINUING THROUGH 11PM AT MOST 
LOCATIONS. THE RAIN WILL BEGIN TO DIMINISH WITH TIME FROM WEST TO 
EAST.

MANY COUNTY ROADS HAVE BEEN REPORTED UNDER WATER IN LE FLORE 
COUNTY.  WITH THE HEAVIEST RAINS MOVING ACROSS LE FLORE 
COUNTY...LIFE THREATENING SITUATIONS MAY OCCUR.

MANY ROADS ARE CLOSED IN PITTSBURG COUNTY...INCLUDING 
HIGHWAY 270 WEST OF MCALESTER.

THIS IS A DANGEROUS FLASH FLOOD SITURATION.  IF YOU LIVE IN A FLOOD 
PRONE AREA...YOU SHOULD ALREADY BE SET TO MOVE TO HIGHER GROUND.

DO NOT RISK YOUR LIFE BY DRIVING ONTO WATER COVERED ROADS.  MOST 
FLASH FLOOD DEATHS IN THIS AREA ARE IN VEHICLES.  


LAT...LON 3388 9547 3396 9595 3460 9567 3469 9608
          3531 9599 3548 9546 3566 9511 3567 9479
          3592 9479 3617 9481 3617 9457 3542 9444
          3453 9449 3454 9505 3395 9517

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 8:40 PM CDT	Flash Flood Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 3 more	5 hr
Apr 8, 1:59 PM CDT	Flash Flood Warning	TSA	Latimer	2 hr
Apr 8, 2:36 PM CDT	Flash Flood Warning	TSA	LeFlore, Sequoyah	3 hr

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.