Alert archive / Oklahoma / Flash Flood Warnings in 2001

Flash Flood Warning 19, NWS Tulsa, OK

May 30, 2001Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 30, 2001, 10:25 PM 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 30, 2001, 10:25 PM CDT (03:25 UTC)
Expired: May 31, 2001, 1:30 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 115 km from the middle of the area, began a volume at 03:25 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, 3.4 hours before the alert went out and 201 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: 3451 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1129 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 310325
FFWTUL
OKC127-310630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1025 PM CDT WED MAY 30 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  NORTHERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 130 AM CDT

* AT 1025 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  ALONG A LINE EXTENDING FROM 6 MILES EAST OF ALBION TO 4 MILES
  NORTHEAST OF STANLEY TO 14 MILES WEST OF STANLEY...MOVING SOUTHEAST
  AT 15 MPH.

  RADAR INDICATES THAT 1 TO 2 INCHES OF RAIN HAS ALREADY FALLEN OVER 
THE WARNED AREA. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 
130 AM CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE ALBION...KIAMICHI...TUSKAHOMA...STANLEY AND CLAYTON.

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 3468 9552 3453 9567 3453 9522 3460 9502
          3469 9497

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 7:31 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	44 min
May 30, 7:58 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg	47 min
May 30, 8:40 PM CDT	Tornado Warning	TSA	Pittsburg	50 min
May 30, 8:42 PM CDT	Tornado Warning	TSA	Latimer	48 min
May 30, 9:11 PM CDT	Flash Flood Warning	TSA	Pittsburg	3 hr
May 30, 9:15 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	45 min
May 30, 9:26 PM CDT	Severe Thunderstorm Warning	TSA	Haskell	49 min
May 30, 9:28 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	47 min
May 30, 9:50 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	40 min
May 30, 9:59 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	46 min
May 30, 10:15 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	45 min
May 30, 10:38 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	52 min
May 30, 10:58 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	47 min
May 31, 12:02 AM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	43 min
May 31, 12:23 AM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	52 min
May 31, 12:56 AM CDT	Flash Flood Warning	TSA	Pushmataha	3 hr

Nearby

Flash Flood Warnings in Oklahoma, 2001 Every flash flood warning in 2001

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.