Alert archive / Oklahoma / Flash Flood Warnings in 2008

Flash Flood Warning 4, NWS Tulsa, OK

February 16, 2008Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Feb 16, 2008, 6:28 PM CST for Pushmataha County, Oklahoma. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 16, 2008, 6:28 PM CST (00:28 UTC)
Expired: Feb 16, 2008, 10:30 PM CST
In force: 4 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

County Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 137 km from the middle of the area, began a volume at 00:30 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.

What was reported inside it

Time	Report	Where	Remark
Feb 16, 6:45 PM CST	FLASH FLOOD	Clayton, OK	ROAD CLOSURE WITHIN THE CITY DUE TO LOCAL STREAMS OUT OF BANKS AND FLOWING OVER BRIDGES ACROSS LOW WATER CROSSINGS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.5 hours before the alert went out and 198 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: 412 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 162 m²/s²
0-3 km storm-relative helicity: -65 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 170030
FFWTSA
OKC127-170430-
/O.NEW.KTSA.FF.W.0004.080217T0028Z-080217T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
628 PM CST SAT FEB 16 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1030 PM CST

* AT 625 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH HEAVY RAIN CONTINUING ACROSS MUCH OF PUSHMATAHA 
  COUNTY.  ADDITIONAL THUNDERSTORMS WERE MOVING NORTHWARD FROM NORTH 
  CENTRAL TEXAS...AND WILL BRING ADDITIONAL RAINS TO THE WARNED AREA 
  THROUGH THE EVENING.  MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST  
  AT 45 MPH. RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS ALREADY  
  FALLEN. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 
  1030 PM CST.

* LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY HEAVY RAIN
  INCLUDE...NASHOBA AND CLOUDY.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

HEAVY RAINS FLOOD ROADS AND LOW LYING AREAS RAPIDLY...SO DO NOT DRIVE
YOUR VEHICLE INTO AREAS WHERE WATER OF AN UNKNOWN DEPTH COVERS THE
ROAD. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY MOST
SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO REACH
YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...MOST
FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES TWO FEET OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

LAT...LON 3417 9577 3460 9554 3460 9552 3467 9550
      3467 9493 3420 9516
TIME...MOT...LOC 0028Z 217DEG 24KT 3471 9513 3424 9534

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 16, 6:55 PM CST	Flash Flood Warning	TSA	Latimer, LeFlore	4 hr
Feb 16, 9:19 PM CST	River Flood Warning	TSA	Pushmataha	15 hr
Feb 16, 9:21 PM CST	River Flood Warning	TSA	LeFlore	52 hr
Feb 17, 4:06 AM CST	Wind Advisory	TSA	Adair, Cherokee, Craig, Creek, Delaware, Mayes and 10 more	11 hr
Feb 17, 8:23 AM CST	River Flood Warning	TSA	Adair	23 hr
Feb 17, 8:23 AM CST	River Flood Warning	TSA	Adair, Cherokee	45 hr

Nearby

Flash Flood Warnings in Oklahoma, 2008 Every flash flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.