Alert archive / Oklahoma / Flash Flood Warnings in 1992

Flash Flood Warning 21, NWS Norman, OK

August 4, 1992Noble County, Payne County, Oklahoma

NWS Norman, OK issued this flash flood warning at Aug 4, 1992, 3:05 AM CDT for Noble County, Payne County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 4, 1992, 3:05 AM CDT (08:05 UTC)
Expired
Aug 4, 1992, 6:00 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Whole counties

Counties Noble County, OK, Payne County, OK

The radar

The Norman radar (KTLX), 101 km from the middle of the area, began a volume at 08:09 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, 8.1 hours before the alert went out and 116 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 1992-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3308 joules per kilogram.LCLEL10008507005003002001001 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 1992-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 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
3308 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1157 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOKC 040807
FFWOKC
OKC119-103-047-053-041100-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
305 AM CDT TUE AUG 4 1992
 
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 AM CDT
FOR THE FOLLOWING OKLAHOMA LOCATIONS...
 
IN CENTRAL OKLAHOMA
 
   ...PAYNE COUNTY
 
IN NORTHEAST OKLAHOMA
 
   ...NOBLE COUNTY
 
IN NORTHWEST OKLAHOMA
 
   ...GARFIELD COUNTY...GRANT COUNTY
 
AT 300 AM CDT...HEAVY RAINFALL CONTINUED OVER NORTH CENTRAL OKLAHOMA.
FLOODING HAD BEEN REPORTED IN COVINGTON WITH LOCAL STREET FLOODING
OCCURRING IN ENID. THUNDERSTORMS CONTINUED OVER THE AREA...AND ARE
EXPECTED TO AFFECT THE NORTH CENTRAL SECTIONS OF THE STATE FOR THE
NEXT THREE TO FOUR HOURS.
 
RADAR RAINFALL ESTIMATES INDICATED RAINFALL AMOUNTS IN EXCESS OF 8
INCHES IN THE COVINGTON AREA...IN EXCESS OF 7 INCHES SOUTHWEST OF POND
CREEK ALONG THE GRANT-GARFIELD COUNTY LINE AND ISOLATED AMOUNTS IN
EXCESS OF 5 INCHES OVER SOUTHERN NOBLE AND WESTERN PAYNE COUNTIES.
 
THUNDERSTORMS WILL BE CONTINUING FOR THE NEXT FEW HOURS...AND FURTHER
RAINFALL WILL INCREASE THE THREAT OF FLASH FLOODING.
 
STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION
FOR LATEST INFORMATION.
 
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 ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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 LOW SPOTS IF WBATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 12:35 AM CDTSevere Thunderstorm WarningOUNNoble40 min
Aug 4, 12:47 AM CDTSevere Thunderstorm WarningOUNGarfield43 min
Aug 4, 1:09 AM CDTSevere Thunderstorm WarningOUNGrant36 min
Aug 4, 3:05 AM CDTFlash Flood WarningOUNGarfield, Grant3 hr
Aug 4, 6:57 PM CDTSevere Thunderstorm WarningOUNRoger Mills48 min

Nearby

Flash Flood Warnings in Oklahoma, 1992Every flash flood warning in 1992

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.