Alert archive / Oklahoma / Flash Flood Warnings in 2002

Flash Flood Warning 31, NWS Tulsa, OK

May 16, 2002Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 16, 2002, 9:55 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 2 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
May 16, 2002, 9:55 PM CDT (02:55 UTC)
Expired
May 17, 2002, 12:00 AM CDT
In force
2 hr
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

Counties Osage County, OK, Pawnee County, OK

The radar

The Tulsa radar (KINX), 84 km from the middle of the area, began a volume at 02:57 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, 2.9 hours before the alert went out and 158 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2002-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3039 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2002-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3039 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 170255
FFWTUL
OKC113-117-170500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
955 PM CDT THU MAY 16 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  OSAGE COUNTY IN NORTHEAST OKLAHOMA
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL MIDNIGHT CDT

* AT 954 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN 3
  MILES NORTH OF CLEVELAND...MOVING NORTHEAST AT 30 MPH.

  RADAR INDICATES THAT 1 TO 3 INCHES OF RAIN HAS ALREADY FALLEN      
  OVER THE WARNED AREA. ANOTHER 2 INCHES WILL BE POSSIBLE THROUGH    
  MIDNIGHT CDT.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
  INCLUDE PAWHUSKA...OSAGE...HOMINY...AVANT...WYNONA...BARNSDALL...
  OKESA...HALLETT...MARAMEC...BLACKBURN AND CLEVELAND.

LAT...LON 3625 9683 3618 9656 3648 9603 3692 9602
2 follow-up statements
000 
WGUS74 KTSA 170330
FFSTUL
OKC113-117-170500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1029 PM CDT THU MAY 16 2002

...FLASH FLOOD WARNING CONTINUES FOR OSAGE AND PAWNEE COUNTIES       
   UNTIL MIDNIGHT CDT...

AT 1026 PM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH VERY
HEAVY RAIN 2 MILES NORTHWEST OF CLEVELAND...NEARLY STATIONARY.

RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS ALREADY FALLEN OVER 
THE WARNED AREA. ANOTHER 1 TO 3 INCHES WILL BE POSSIBLE THROUGH 
MIDNIGHT CDT.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN 
INCLUDE OSAGE...HOMINY...WYNONA...BARNSDALL...PERSHING...TALLANT...
NELAGONEY AND CLEVELAND.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

LAT...LON 3633 9664 3620 9648 3651 9604 3668 9626
000 
WGUS74 KTSA 170412
FFSTUL
OKC113-117-170500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1110 PM CDT THU MAY 16 2002

...FLASH FLOOD WARNING CONTINUES FOR OSAGE AND PAWNEE COUNTIES UNTIL
   MIDNIGHT CDT...

AT 1110 PM CDT...RADAR CONTINUED TO SHOW THUNDERSTORMS WITH VERY
HEAVY RAIN ALONG A LINE EXTENDING FROM 10 MILES NORTHEAST OF WESTPORT
TO JENNINGS...MOVING SLOWLY EAST.

RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS ALREADY FALLEN OVER 
PORTIONS OF EASTERN PAWNEE AND SOUTHERN OSAGE COUNTY. ANOTHER 1 TO 2 
INCHES WILL BE POSSIBLE THROUGH MIDNIGHT CDT.  SEVERAL ROADS HAVE 
ALREADY BECOME IMPASSABLE. 

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN
INCLUDE OSAGE...HOMINY...JENNINGS...TERLTON...HALLETT...CLEVELAND AND
WESTPORT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3652 9655 3633 9661 3618 9658 3619 9601

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 8:50 PM CDTSevere Thunderstorm WarningTSAChoctaw, Pushmataha55 min
May 16, 9:50 PM CDTSevere Thunderstorm WarningTSAPawnee55 min
May 16, 11:03 PM CDTFlash Flood WarningTSAWashington3 hr
May 16, 11:12 PM CDTSevere Thunderstorm WarningTSAPawnee48 min
May 16, 11:20 PM CDTSevere Thunderstorm WarningTSAOsage40 min
May 16, 11:34 PM CDTSevere Thunderstorm WarningTSAWashington41 min
May 16, 11:43 PM CDTSevere Thunderstorm WarningTSACreek, Tulsa62 min
May 17, 12:26 AM CDTSevere Thunderstorm WarningTSATulsa49 min
May 17, 12:44 AM CDTSevere Thunderstorm WarningTSACreek61 min
May 17, 1:04 AM CDTSevere Thunderstorm WarningTSAOkmulgee56 min
May 17, 1:10 AM CDTSevere Thunderstorm WarningTSARogers, Tulsa, Wagoner50 min
May 17, 1:18 AM CDTFlash Flood WarningTSACreek, Tulsa3 hr
May 17, 1:49 AM CDTSevere Thunderstorm WarningTSACherokee41 min
May 17, 1:58 AM CDTSevere Thunderstorm WarningTSATulsa, Wagoner47 min
May 17, 2:12 AM CDTSevere Thunderstorm WarningTSACreek63 min
May 17, 2:21 AM CDTFlash Flood WarningTSAWagoner3 hr
May 17, 2:34 AM CDTFlash Flood WarningTSAOkmulgee2 hr
May 17, 2:38 AM CDTSevere Thunderstorm WarningTSAMuskogee, Wagoner67 min
May 17, 3:03 AM CDTSevere Thunderstorm WarningTSACherokee57 min
May 17, 3:12 AM CDTSevere Thunderstorm WarningTSACreek, Okfuskee63 min
May 17, 3:15 AM CDTFlash Flood WarningTSACherokee, Creek, Delaware, Mayes, Muskogee, Okmulgee and 2 more3 hr
May 17, 3:37 AM CDTSevere Thunderstorm WarningTSAOkmulgee53 min
May 17, 4:05 AM CDTSevere Thunderstorm WarningTSAMcIntosh40 min
May 17, 4:39 AM CDTSevere Thunderstorm WarningTSAHaskell, Muskogee, Pittsburg51 min
May 17, 5:01 AM CDTSevere Thunderstorm WarningTSASequoyah44 min
May 17, 5:05 AM CDTSevere Thunderstorm WarningTSALatimer40 min
May 17, 5:17 AM CDTSevere Thunderstorm WarningTSAPushmataha43 min
May 17, 5:23 AM CDTSevere Thunderstorm WarningTSALeFlore52 min
May 17, 5:41 AM CDTSevere Thunderstorm WarningTSASequoyah49 min
May 17, 6:10 AM CDTFlash Flood WarningTSACherokee, Creek, Delaware, Mayes, Muskogee, Okmulgee and 2 more6 hr

Nearby

Flash Flood Warnings in Oklahoma, 2002Every 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.