Alert archive / Oklahoma / Flash Flood Warnings in 1997

Flash Flood Warning 32, NWS Tulsa, OK

July 18, 1997Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jul 18, 1997, 1:40 AM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 6 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
Jul 18, 1997, 1:40 AM CDT (06:40 UTC)
Expired
Jul 18, 1997, 7:45 AM CDT
In force
6 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Osage County, OK, Pawnee County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.7 hours before the alert went out and 159 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 1997-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1936 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 1997-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1936 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1989 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 180642
FFWTUL
OKC113-117-181245-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
140 AM CDT FRI JUL 18 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  745 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST OKLAHOMA
 
   ...WESTERN OSAGE COUNTY...WESTERN PAWNEE COUNTY
 
AT 130 AM...FLOODING CONTINUED ACROSS PORTIONS OF WESTERN OSAGE AND
WESTERN PAWNEE COUNTIES WHERE MORE THAN 6 INCHES OF RAIN FELL DURING
THURSDAY EVENING AND EARLY THIS FRIDAY MORNING. ALTHOUGH THE HEAVY
RAINS HAD TAPERED OFF...MODERATE RAIN CONTINUED AND AN ADDITIONAL
ONE HALF TO ONE INCH OF RAIN WILL BE POSSIBLE OVERNIGHT.  RUNOFF FROM
THE EARLIER HEAVY RAINS WILL CONTINUE TO CAUSE PROBLEMS FOR SEVERAL
MORE HOURS.
 
MANY ROADS REMAINED CLOSED DUE TO HIGH WATER OVER WESTERN OSAGE COUNTY.
THE WORST FLOODING WAS ALONG THE SALT CREEK IN AND NEAR THE TOWN OF
FAIRFAX.  MANY PEOPLE IN FAIRFAX AND GREY HORSE HAVE BEEN EVACUATED TO
AVOID RISING WATERS.  IN WESTERN PAWNEE COUNTY...PEOPLE NEAR RALSTON
ALONG THE ARKANSAS RIVER WERE BEING ADVISED TO MONITOR THE WATER LEVELS
WHERE THE SALT CREEK EMPTIES INTO THE ARKANSAS RIVER.
 
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  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.  IF YOUR
VEHICLE GETS CAUGHT IN RISING WATER...ABANDONED IT QUIC^KLY.
THEN MOVE TO HIGHER GROUND.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 7:07 PM CDTTornado WarningTSAOsage38 min
Jul 17, 7:37 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee53 min
Jul 17, 7:48 PM CDTFlash Flood WarningTSAOsage, Pawnee6 hr
Jul 17, 8:14 PM CDTSevere Thunderstorm WarningTSACreek46 min
Jul 17, 8:22 PM CDTSevere Thunderstorm WarningTSAPawnee53 min
Jul 17, 8:57 PM CDTSevere Thunderstorm WarningTSACreek48 min
Jul 17, 9:11 PM CDTSevere Thunderstorm WarningTSAPawnee49 min
Jul 17, 9:29 PM CDTSevere Thunderstorm WarningTSAOkfuskee46 min
Jul 17, 11:09 PM CDTFlash Flood WarningTSACreek3 hr
Jul 18, 12:42 AM CDTFlash Flood WarningTSAOkfuskee3 hr
Jul 18, 3:37 AM CDTFlash Flood WarningTSAOkfuskee4 hr
Jul 18, 7:43 AM CDTFlash Flood WarningTSAOsage, Pawnee3 hr

Nearby

Flash Flood Warnings in Oklahoma, 1997Every flash flood warning in 1997

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.