Alert archive / Oklahoma / Flash Flood Warnings in 2004

Flash Flood Warning 38, NWS Tulsa, OK

August 11, 2004Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Aug 11, 2004, 7:35 AM CDT for Okfuskee County, Okmulgee 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 11, 2004, 7:35 AM CDT (12:35 UTC)
Expired: Aug 11, 2004, 10:30 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 92 km from the middle of the area, began a volume at 12:38 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

Fort Sill, OK (KFSI), launched 12:00Z, 0.6 hours before the alert went out and 223 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: 913 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: -337 m²/s²
0-3 km storm-relative helicity: -264 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 111239
FFWTUL
OKC107-111-111530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
735 AM CDT WED AUG 11 2004

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA
  OKMULGEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1030 AM CDT

* AT 735 AM CDT RADAR INDICATED THUNDERSTORMS WITH EXTREMELY HEAVY 
RAIN OVER PARTS OF OKFUSKEE COUNTY...MOVING EAST AT 20 MPH.  RADAR 
INDICATES HEAVY RAINS HAVE ALREADY FALLEN OVER THE WARNED AREA...AND 
ANOTHER 2-3 INCHES PER HOUR CAN BE EXPECTED IN SOME LOCATIONS.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE WILSON...OKEMAH...WELEETKA...BEARDEN...CLEARVIEW...
  PHAROAH...CASTLE...PADEN...BOLEY...OKFUSKEE...WELTY...OKMULGEE...
  HENRYETTA...DEWAR...GRAYSON...SCHULTER...MORRIS...PRESTON AND BALD
  HILL.

THE RAINS IN THIS AREA ARE EXTREMELY HEAVY AND MAY CAUSE A VERY 
RAPID RISE OF WATER.  ALSO...THE BLINDING RAINS WILL MAKE DRIVING 
DIFFICULT.

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.

LAT...LON 3561 9661 3541 9661 3545 9644 3530 9644
      3534 9604 3542 9589 3550 9585 3557 9573
      3586 9576 3569 9621

$$

1 follow-up statement

000 
WGUS74 KTSA 111429
FFSTUL
OKC107-111-111500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
930 AM CDT WED AUG 11 2004

...THE FLASH FLOOD WARNING ISSUED OKMULGEE AND OKFUSKEE COUNTIES    
HAS BEEN CANCELLED...

THE HEAVY RAINFALL THAT PROMPTED THE WARNING HAS MOVED SOUTHEAST OF 
OKMULGEE AND OKFUSKEE COUNTIES...THUS ENDING THE THREAT FOR FLASH 
FLOODING. LIGHT TO MODERATE RAIN WILL CONTINUE ACROSS THESE AREAS 
OVER THE NEXT FEW HOURS.         


AT...LON 3561 9661 3541 9661 3545 9644 3530 9644
     3534 9604 3542 9589 3550 9585 3557 9573
     3586 9576 3569 9621



$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 10:25 PM CDT	Severe Thunderstorm Warning	TSA	Osage	50 min
Aug 10, 11:13 PM CDT	Severe Thunderstorm Warning	TSA	Osage	47 min
Aug 11, 12:48 AM CDT	Severe Thunderstorm Warning	TSA	Osage	57 min

Nearby

Flash Flood Warnings in Oklahoma, 2004 Every flash flood warning in 2004

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.