Alert archive / Oklahoma / Flash Flood Warnings in 1989

Flash Flood Warning 16, NWS Tulsa, OK

September 1, 1989Pittsburg County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Sep 1, 1989, 9:09 PM CDT for Pittsburg County, Oklahoma. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 1, 1989, 9:09 PM CDT (02:09 UTC)
Expired
Sep 2, 1989, 1:15 AM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

County Pittsburg County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.2 hours before the alert went out and 154 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 1989-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1581 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1989-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
1581 J/kg
Mixed-layer CIN
-206 J/kg
Mixed-layer LCL
1448 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 020209
FFWTUL
OKC121-020615-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
909 PM CDT FRI SEP 1 1989
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST OKLAHOMA
          ...PITTSBURG
 
UP TO 4 INCHES OF RAIN HAVE FALLEN OVER PARTS OF PITTSBURG COUNTY IN
THE PAST 3 TO 4 HOURS BASED ON RADAR AND SATELLITE ESTIMATES. THE
MCALESTER EOC HAS REPORTED THAT FLOODING IS OCCURRING OVER SOME OF
THE HIGHWAYS IN THE NORTHERN PART OF THE COUNTY. RAINFALL WILL
CONTINUE IN PITTSBURG COUNTY FOR THE NEXT 2 TO 3 HOURS WITH AN
ADDITIONAL 1 TO 2 INCHES OF RAIN POSSIBLE. PERSONS LIVING NEAR
ANY SMALL CREEKS OR NORMALLY POOR DRAINAGE AREAS SHOULD REMAIN
ALERT TO THE POSSIBILITY OF RISING FLOOD WATERS TONIGHT...AND
SHOULD MOVE IMMEDIATELY TO A SAFE PLACE IF THESE WATERS APPROACH
WHERE THEY LIVE.
 
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS LIKELY OR HAS BEEN
REPORTED.  STAY ALERT AND WATCH FOR RAPIDLY RISING WATER.
REMEMBER...IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO THE
NEAREST STREAM...CREEK OR RIVER WHICH CAN BECOME A KILLER DURING
PERIODS OF HEAVY RAIN.
 
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 QUICKLY.  THEN
MOVE TO HIGHER GROUND.

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.

In the hours before

Local storm report, Sep 1, 6:57 PM CDT, 2 hours 12 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
655 PM CDT FRI SEP 1 1989

 TIME/CDT COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
  615 PM  OKMULGEE    DIME SIZE HAIL REPORTED IN BEGGS.
Local storm report, Sep 1, 7:04 PM CDT, 2 hours 5 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
702 PM CDT FRI SEP 01 1989

 TIME/CDT COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
  600 PM  CREEK       DIME TO QUARTER SIZE HAIL ALONG THE TURNER TURN/
                      PIKE JUST SOUTHWEST OF BRISTOW.
Local storm report, Sep 1, 8:23 PM CDT, 46 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
820 PM CDT FRI SEP 1 1989

 TIME/CDT COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
  815 PM  MUSKOGEE    60 MPH WINDS DAMAGED TREES AND QUARTER SIZE HAIL
                      FELL AT PORUM.

Nearby

Flash Flood Warnings in Oklahoma, 1989Every flash flood warning in 1989

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.