Alert archive / Oklahoma / Flash Flood Warnings in 1997

Flash Flood Warning 31, NWS Tulsa, OK

July 18, 1997Okfuskee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jul 18, 1997, 12:42 AM CDT for Okfuskee 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 counties it named.

The facts

Issued
Jul 18, 1997, 12:42 AM CDT (05:42 UTC)
Expired
Jul 18, 1997, 3:45 AM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

County Okfuskee County, OK

The radar

The Norman radar (KTLX), 88 km from the middle of the area, began a volume at 05:43 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, 5.7 hours before the alert went out and 101 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 180544
FFWTUL
OKC107-180845-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1242 AM CDT FRI JUL 18 1997
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  345 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OKLAHOMA
 
   ...WESTERN OKFUSKEE COUNTY
 
AT 1240 AM...RADAR ESTIMATES INDICATE THAT 2 TO 3 INCHES OF RAIN HAS
FALLEN BETWEEN 1130 PM AND 1230 AM IN WESTERN OKFUSKEE COUNTY TO THE
NORTH OF PADEN. THUNDERSTORMS PRODUCING HEAVY RAIN WILL CONTINUE IN THIS
AREA FOR THE NEXT SEVERAL HOURS...WITH ADDITIONAL RAINFALL AMOUNTS OF 1
TO 4 INCHES POSSIBLE. THIS RAINFALL WILL LIKELY RESULT IN FLASH
FLOODING.
 
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 QUICxKLY.
THEN MOVE TO HIGHER GROUND.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this flash flood warning went out at Jul 17, 9:10 PM CDT, 3 hours 32 minutes earlier.

Area forecast discussion, Jul 17, 9:10 PM CDT, 3 hours 32 minutes before
FPUS3 KTUL 180208
AFDTUL

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
910 PM CDT THU JUL 17 1997

TSTMS IN ASSOCIATION WITH SLOW MOVING MCV PERSIST ACROSS THE NW PART OF
THE FCST AREA THIS EVENING. STORMS ARE FINALLY ON THE MOVE A BIT TO THE
SOUTH SO THE CURRENT FFA SEEMS OK. IT APPEARS STORMS WILL PERSIST ALL
NIGHT AGAIN NEAR THE CENTER OF THE MCV SO MORE EXCESSIVE RAINFALL IS
LIKELY...BUT PROBABLY SOUTH OF THE AREAS WHICH SAW THE MOST RAIN
EARLIER TODAY.

DIURNAL CONVECTION HAS PRETTY MUCH DIED OUT ACROSS THE REST OF THE FCST
AREA SO WILL REMOVE POPS EXCEPT NEAR THE MCV. MAY ALSO TWEAK TEMPS AND
WINDS A BIT FOR TONIGHT.

WILL UPDATE ZONES BY AROUND 03Z.

.TUL...
OK...FFA TONIGHT FOR ZONES 054-059-064-065.
AR...NONE.

PLATE

In the hours before

Local storm report, Jul 17, 8:19 PM CDT, 4 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
819 PM CDT THU JUL 17 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0335 PM    OKMULGEE                  OK   65 MPH TSTM GUST
07/17/97   OKMULGEE

0348 PM    OKMULGEE                  OK   75 MPH TSTM GUST
07/17/97   OKMULGEE

0448 PM    8 SW MC ALESTER           OK   .75 INCH HAIL
07/17/97   PITTSBURG                      AT ARMY AMMUNITION PLANT

0506 PM    SHIDLER                   OK   FLOODING
07/17/97   OSAGE                          2 FEET OF STANDING WATER
                                          IN SOME PARTS OF SHIDLER

0540 PM    BARLING                   AR   .75 INCH HAIL
07/17/97   SEBASTIAN

0543 PM    SHIDLER                   OK   .75 INCH HAIL
07/17/97   OSAGE

0559 PM    VAN BUREN                 AR   .75 INCH HAIL
07/17/97   CRAWFORD                       SOUTH SIDE OF TOWN

0559 PM    VAN BUREN                 AR   75 MPH TSTM GUST
07/17/97   CRAWFORD                       TREES DOWN ON SOUTH SIDE
                                          OF TOWN

0612 PM    SHIDLER                   OK   1 INCH HAIL
07/17/97   OSAGE

0715 PM    3 NE PAWNEE               OK   72 MPH TSTM GUST
07/17/97   PAWNEE                         AT MESONET SITE BETWEEN
                                          715 AND 730 PM

0720 PM    FAIRFAX                   OK   FLOODING
07/17/97   OSAGE                          STATE HIGHWAY 18 UNDER
                                          WATER NEAR FAIRFAX

0729 PM    FAIRFAX                   OK   80 MPH TSTM GUST
07/17/97   OSAGE                          TREES DOWNED

0735 PM    3 NE PAWNEE               OK   83 MPH TSTM GUST
07/17/97   PAWNEE                         AT MESONET SITE

0815 PM    JENNINGS                  OK   80 MPH TSTM GUST
07/17/97   PAWNEE
Local storm report, Jul 17, 8:20 PM CDT, 4 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
819 PM CDT THU JUL 17 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0335 PM    OKMULGEE                  OK   65 MPH TSTM GUST
07/17/97   OKMULGEE

0348 PM    OKMULGEE                  OK   75 MPH TSTM GUST
07/17/97   OKMULGEE

0448 PM    8 SW MC ALESTER           OK   .75 INCH HAIL
07/17/97   PITTSBURG                      AT ARMY AMMUNITION PLANT

0506 PM    SHIDLER                   OK   FLOODING
07/17/97   OSAGE                          2 FEET OF STANDING WATER
                                          IN SOME PARTS OF SHIDLER

0540 PM    BARLING                   AR   .75 INCH HAIL
07/17/97   SEBASTIAN

0543 PM    SHIDLER                   OK   .75 INCH HAIL
07/17/97   OSAGE

0559 PM    VAN BUREN                 AR   .75 INCH HAIL
07/17/97   CRAWFORD                       SOUTH SIDE OF TOWN

0559 PM    VAN BUREN                 AR   75 MPH TSTM GUST
07/17/97   CRAWFORD                       TREES DOWN ON SOUTH SIDE
                                          OF TOWN

0612 PM    SHIDLER                   OK   1 INCH HAIL
07/17/97   OSAGE

0715 PM    3 NE PAWNEE               OK   72 MPH TSTM GUST
07/17/97   PAWNEE                         AT MESONET SITE BETWEEN
                                          715 AND 730 PM

0720 PM    FAIRFAX                   OK   FLOODING
07/17/97   OSAGE                          STATE HIGHWAY 18 UNDER
                                          WATER NEAR FAIRFAX

0729 PM    FAIRFAX                   OK   80 MPH TSTM GUST
07/17/97   OSAGE                          TREES DOWNED

0735 PM    3 NE PAWNEE               OK   83 MPH TSTM GUST
07/17/97   PAWNEE                         AT MESONET SITE

0815 PM    JENNINGS                  OK   80 MPH TSTM GUST
07/17/97   PAWNEE

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, 1:40 AM CDTFlash Flood WarningTSAOsage, Pawnee6 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; radar from the NEXRAD Level II archive.