Alert archive / Oklahoma / Flash Flood Warnings in 2001

Flash Flood Warning 44, NWS Tulsa, OK

December 16, 20014 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Dec 16, 2001, 3:40 PM CST for 4 counties in 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 counties it named.

The facts

Issued: Dec 16, 2001, 3:40 PM CST (21:40 UTC)
Expired: Dec 16, 2001, 7:30 PM CST
In force: 4 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Choctaw County, OK, Latimer County, OK, LeFlore County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 113 km from the middle of the area, began a volume at 21:44 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 12:00Z, 9.7 hours before the alert went out and 212 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: 1 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 90 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: -161 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 162141
FFWTUL
OKC023-077-079-127-170130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
340 PM CST SUN DEC 16 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  CHOCTAW COUNTY IN SOUTHEAST OKLAHOMA
  LATIMER COUNTY IN SOUTHEAST OKLAHOMA
  LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 730 PM CST

* AT 330 PM CST LOCALIZED FLOODING WAS REPORTED IN SEVERAL AREAS OF 
  CHOCTAW...PUSHMATAHA AND LATIMER COUNTIES.  SIMILAR RAINFALL HAS
  ALSO OCCURRED OVER PORTIONS OF LE FLORE COUNTY WHICH MAY HAVE 
  RESULTED IN SIMILAR INCIDENTS OF LOCALIZED FLOODING THERE.   

  FLOODING HAS BEEN REPORTED OVER PORTIONS OF HIGHWAY 109 IN CHOCTAW 
  COUNTY...HIGHWAY 82 SOUTH OF RED OAK IN LATIMER COUNTY...AND ALSO 
  IN THE ONE CREEK VALLEY AREA EAST OF FINLEY IN PUSHMATAHA COUNTY.  

  RADAR ESTIMATES AND RAINFALL REPORTS INDICATES THAT 3 TO 5 INCHES 
  OF RAIN HAS FALLEN OVER THE WARNED AREA. ANOTHER 1 TO 2 INCHES 
  WILL BE POSSIBLE THROUGH 730 PM CST.

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. 

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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 16, 12:39 AM CST	Flash Flood Warning	TSA	Choctaw	4 hr
Dec 16, 1:21 AM CST	Flash Flood Warning	TSA	Pushmataha	4 hr
Dec 16, 4:26 AM CST	Flash Flood Warning	TSA	Choctaw, Latimer, 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.