Alert archive / Oklahoma / Flash Flood Warnings in 2000

Flash Flood Warning 41, NWS Norman, OK

October 26, 20005 counties in Oklahoma

NWS Norman, OK issued this flash flood warning at Oct 26, 2000, 8:17 PM CDT for 5 counties in 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 counties it named.

The facts

Issued
Oct 26, 2000, 8:17 PM CDT (01:17 UTC)
Expired
Oct 26, 2000, 11:15 PM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Whole counties

Counties Carter County, OK, Garvin County, OK, Jefferson County, OK, Murray County, OK, Stephens County, OK

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.3 hours before the alert went out and 176 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, Fort Worth, TX at 00:00Z on 2000-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 494 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, Fort Worth, TX at 00:00Z on 2000-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.193958Sfc1 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
494 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOUN 270125 COR
FFWOKC
OKC019-049-067-099-137-270415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED FOR UGC CODING ERROR...
NATIONAL WEATHER SERVICE NORMAN OK
817 PM CDT THU OCT 26 2000

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARTER COUNTY IN SOUTHERN OKLAHOMA
  GARVIN COUNTY IN SOUTHERN OKLAHOMA
  JEFFERSON COUNTY IN SOUTHERN OKLAHOMA
  MURRAY COUNTY IN SOUTHERN OKLAHOMA
  STEPHENS COUNTY IN SOUTHERN OKLAHOMA

* UNTIL 1115 PM CDT

* AT 817 PM CDT...DOPPLER RADAR CONTINUED TO SHOW A LARGE AREA 
  OF SHOWERS AND THUNDERSTORMS PRODUCING MODERATE TO HEAVY RAINFALL
  OVER A LARGE PART OF SOUTH CENTRAL OKLAHOMA.  THIS AREA OF SHOWERS
  AND STORMS WAS MOVING EAST-NORTHEAST AT 15 TO 20 MPH.
  
  RAINFALL RATES BETWEEN 1 AND 3 INCHES PER HOUR ARE POSSIBLE WITH
  THIS ACTIVITY FOR THE NEXT SEVERAL HOURS.  THESE HEAVY RAINFALL 
  RATES ON TOP OF SATURATED CONDITIONS FROM PREVIOUS RAINFALL... 
  WILL LIKELY RESULT IN FLASH FLOODING ACROSS PARTS OF STEPHENS...
  JEFFERSON... GARVIN... MURRAY... AND CARTER COUNTIES.

* LOCATIONS IN THE WARNING INCLUDE ADDINGTON...ARDMORE...BRAY...  
COMANCHE...CORNISH...DAVIS...DOUGHERTY...DUNCAN...ELMORE CITY...  
FOSTER...GENE AUTRY...GRADY...GRAHAM...HEALDTON...LOCO...LONE   
GROVE...MARLOW...MILO...PAULS VALLEY...PERNELL...POOLEVILLE...  
RATLIFF CITY...RINGLING...SPRINGER...TATUMS...TURNER FALLS...  
VELMA...WILSON AND WYNNEWOOD

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND.

$$ 
 MILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 26, 7:04 PM CDTSevere Thunderstorm WarningOUNCarter, Jefferson26 min
Oct 26, 9:36 PM CDTSevere Thunderstorm WarningOUNLove24 min
Oct 27, 3:27 PM CDTFlash Flood WarningOUNLincoln3 hr
Oct 27, 3:32 PM CDTFlash Flood WarningOUNLogan2 hr
Oct 27, 3:43 PM CDTTornado WarningOUNLincoln32 min
Oct 27, 4:01 PM CDTSevere Thunderstorm WarningOUNLincoln44 min
Oct 27, 5:59 PM CDTFlash Flood WarningOUNLincoln, Logan3 hr

Nearby

Flash Flood Warnings in Oklahoma, 2000Every flash flood warning in 2000

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.