Alert archive / Oklahoma / Flash Flood Warnings in 1991

Flash Flood Warning 13, NWS Norman, OK

June 2, 1991Jackson County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 2, 1991, 12:44 AM CDT for Jackson County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 2, 1991, 12:44 AM CDT (05:44 UTC)
Expired
Jun 2, 1991, 3:45 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Whole counties

County Jackson County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.7 hours before the alert went out and 197 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 1991-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2602 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 1991-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
2602 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1058 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOKC 020542
FFWOKC
OKC015-031-065-075-141-020845-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1244 AM CDT SUN JUN 2 1991
 
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  345 AM CDT
FOR THE FOLLOWING OKLAHOMA LOCATIONS...
 
IN SOUTHWEST OKLAHOMA
 
   ...CADDO COUNTY...COMANCHE COUNTY...JACKSON COUNTY
   ...SOUTHEASTERN KIOWA COUNTY...TILLMAN COUNTY
 
THUNDERSTORMS HAVE PRODUCED HEAVY RAINFALL THIS EVENING FROM BINGER
SOUTHWEST ACROSS SOUTHEAST KIOWA COUNTY THROUGH MUCH OF JACKSON
COUNTY. RAINFALL AMOUNTS OF ABOUT 3 INCHES HAVE OCCURRED ACROSS THE
WARNING AREA...SATURATING THE GROUND AND CAUSED NUMEROUS SMALL STREAMS
TO OVERFLOW THEIR BANKS. THUNDERSTORMS CONTINUE ACROSS MUCH OF
SOUTHWESTERN OKLAHOMA AND ADDITIONAL HEAVY RAINFALL IS LIKELY TONIGHT.
 
PERSONS IN LOW LYING OR FLOOD PRONE AREAS SHOULD BE AWARE OF THE
POSSIBILITY OF FLOODING DURING THE NEXT SEVERAL HOURS.
 
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.

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, Jun 1, 7:26 PM CDT, 5 hours 18 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
730 PM CDT SAT JUN 1 1991

TIME         COUNTY       EVENT

558 PM CDT   KNOX         DIME SIZE HAIL AT TRUSCOTT.

610 PM CDT   FOARD        DIME SIZE HAIL..60MPH WIND AT CROWELL.

610 PM CDT   FOARD        DIME SIZE HAIL 1 MILE WEST OF CROWELL AND AT
                          FOARD CITY HIGH WIND ALSO REPORTED.

612 PM CDT   FOARD        QUARTER SIZE HAIL JUST SOUTHWEST OF CITY OF
                          WICHITA FALLS.
615 PM CDT   FOARD        GOLFBALL SIZE HAIL NORTHWEST CROWELL.

615 PM CDT   HARDEMAN     MARBLE SIZE HAIL 2 MILES NORTH OF CHILLOCOTHE

625 PM CDT   HARDEMAN     MARBLE SIZE HAIL IN CHILLOCTHE.
626 PM CDT  HARDEMAN     QUARTER SIZE HAIL AT MEDICINE MOUND.
Special weather statement, Jun 1, 11:14 PM CDT, 1 hour 30 minutes before
OKZ010-011-014-015-016-020500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1114 PM CDT SAT JUN 1 1991

...STRONG THUNDERSTORMS ONCE AGAIN MOVING INTO THE OKLAHOMA CITY METRO
AREA...

AT 1114 PM NATIONAL WEATHER SERVICE RADAR INDICATED THE LEADING EDGE
OF AN AREA OF THUNDERSTORMS EXTENDING FROM PIEDMONT TO YUKON TO
BLANCHARD. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. THESE STORMS DO
NOT APPEAR TO BE SEVERE...HOWEVER THE STRONGER STORMS WILL PRODUCE
WINDS TO 45 MPH...SMALL HAIL...VERY HEAVY RAINS...AND VERY FREQUENT
CLOUD TO GROUND LIGHTNING.

PEOPLE IN CENTRAL OKLAHOMA...INCLUDING THE OKLAHOMA CITY AREA...SHOULD
REMAIN ALERT AS THESE STORMS APPROACH. THE STORMS WILL BE IN THE METRO
AREA UNTIL APPROXIMATELY 1 AM SUNDAY MORNING.
Special weather statement, Jun 2, 12:02 AM CDT, 42 minutes before
OKZ004-019-020600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1201 AM CDT SUN JUN 2 1991

...STRONG THUNDERSTORMS WITH HEAVY RAINS IN CENTRAL AND SOUTHWEST
OKLAHOMA...
 ...SEVERE THUNDERSTORM WARNING FOR SOUTHERNM KIOWA COUNTY
HAS EXPIRED...
...FLASH FLOOD WARNING FOR KIOWA COUNTY UNTIL 130 AM...

AT MIDNIGHT CDT NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA
OF THUNDERSTORMS FROM GUTHRIE TO MIDWEST CITY TO DUNCAN EXTENDING
WESTWARD ACROSS MOST OF OKLAHOMA. THE STRONGEST STORMS WERE OVER
EASTERN KIOWA COUNTY NORTHEAST ACROSS CADDO AND GRADY COUNTY AND INTO
THE OKLAHOMA CITY AREA.

THE STRONGEST STORMS WILL PRODUCE SMALL HAIL...WIND GUSTS OF 35 TO 45
MPH AND VERY HEAVY RAINS. FLOODING OF LOW-LYING AND POOR DRAINAGE
AREAS CAN BE EXPECTED THROUGH THE EARLY MORNING HOURS. HIGH WATER WAS
REPORTED OVER ROADS SOUTH AND EAST OF ALTUS. ALSO..THESE STORMS HAVE A
HISTORY OF VERY FREQUENT CLOUD-TO-GROUND LIFGHTNING.
Special weather statement, Jun 2, 12:25 AM CDT, 19 minutes before
TXZ019-020-020600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1130 PM CDT SAT JUN 1 1991

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 AM SUNDAY MORNING FOR
HARDEMAN..FOARD..KNOX..WILBARGER..BAYLOR..WICHITA..ARCHER..YOUNG..AND..
CLAY COUNTIES OF NORTHCENTRAL TEXAS AND COTTON COUNTY OF SOUTHERN OKLAHOMA

AT 1115 PM CDT WICHITA FALLS RADAR INDICATED A LINE OF VERY HEAVY THUNDER
STORMS EXTENDING FROM OKLAHOMA CITY..SOUTHWEST TO LAWTON..AND WEST TO O
ALTUS OKLAHOMA..THEN SOUTHWEST TO 50 MILES NORTHEAST OF LUBBOCK TEXAS.

THIS LINE OF VERY HEAVY THUNDERSTORMS REMAINED NEARLY STATIONARY IN NORTH
CENTRAL TEXAS WITH LITTLE OR NO MOVEMENT SINCE 1000 PM CDT.  THE PORTION
OF THE LINE IN OKLAHOMA WAS MOVING TO THE EAST AT 25 MILES PER HOUR.

VERY HEAVY THUNDERSTORMS CONTINUED ACROSS NORTHWEST HARDEMAN COUNTY...
HOWEVER NO SEVERE WEATHER HAS BEEN REPORTED THEIR SINCE 830 PM CDT.

BECAUSE THIS LINE OF VERY HEAVY THUNDERSTORMS IS NEARLY STATIONARY...
PERSONS IN HARDEMAN COUNTY OF NORTH CENTRAL TEXAS...
ESPECIALLY THOSE IN LOW LYING AREAS SHOULD BE ALERT
TO FLOODING OF LOW LYING LANDS AS WELLS AS RURAL COUNTRY ROADS.

IN OTHER AREAS OF NORTH CENTRAL TEXAS ARO&UND WICHITA FALLS..RADAR SHOWED
NO PRECIPITATION.
Special weather statement, Jun 2, 12:36 AM CDT, 8 minutes before
TXZ019-020-020630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
1230 AM CDT SUN JUN 2 1991

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 AM SUNDAY MORNING FOR
HARDEMAN..FOARD..KNOX..WILBARGER..BAYLOR..WICHITA..ARCHER..YOUNG..AND..
CLAY COUNTIES OF NORTHCENTRAL TEXAS AND COTTON COUNTY OF SOUTHERN OKLAHOMA

AT 1230 AM CDT WICHITA FALLS RADAR INDICATED A LINE OF VERY STRONG
THUNDERSTORMS FROM OKLAHOMA CITY..SOUTHWEST TO LAWTON..TO SOUTH OF
ALTUS OKLAHOMA..THEN EXTENDING SOUTH ACROSS HARDEMAN TO KNOX COUNTIES.

THIS LINE OF VERY HEAVY THUNDERSTORMS REMAINED NEARLY STATIONARY IN NORTH
CENTRAL TEXAS WITH INDIVIDUAL CELLS MOVING TO THE NORTHEAST AT 15 MPH.

VERY HEAVY THUNDERSTORMS CONTINUED ACROSS THE WESTERN HALF OF HARDEMAN
COUNTY AND SOUTHWESTERN FOARD COUNTY. ALTHOUGH NO SEVERE WEATHER HAS
BEEN REPORTED...QUANAH IN HARDEMAN COUNTY HAS REPORTED AROUND 1215 AM
TORRENTIAL RAIN...FREQUENT LIGHTNING AND WIND GUSTING TO 50 MPH.

RESIDENTS OF HARDEMAN AND FOARD COUNTY WILL CONTINUE TO SEE VERY HEAVY
RAINS...GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLY SMALL HAIL IN THE
NEXT ONE TO TWO HOURS. RESIDENTS OF FOARD AND HARDEMAN COUNTY SHOULD BE
VERY CAREFUL OF LOW-LYING FLOODING AND NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

RADAR SHOWED NO PRECIPITATION WICHITA FALLS OR THE IMMEDIATE SURROUNDING
COUNTIES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 7:09 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita66 min
Jun 1, 7:09 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman66 min
Jun 1, 7:33 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche42 min
Jun 1, 7:33 PM CDTSevere Thunderstorm WarningOUNBlaine42 min
Jun 1, 7:54 PM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher51 min
Jun 1, 8:56 PM CDTSevere Thunderstorm WarningOUNCanadian, Cleveland, Kingfisher, Logan, Oklahoma64 min
Jun 1, 8:56 PM CDTSevere Thunderstorm WarningOUNGrady, McClain64 min
Jun 1, 8:56 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble64 min
Jun 1, 9:17 PM CDTSevere Thunderstorm WarningOUNPayne43 min
Jun 1, 9:30 PM CDTSevere Thunderstorm WarningOUNLincoln, Pottawatomie60 min
Jun 1, 9:34 PM CDTSevere Thunderstorm WarningOUNComanche, Kiowa41 min
Jun 1, 9:54 PM CDTSevere Thunderstorm WarningOUNNoble, Payne36 min
Jun 1, 10:12 PM CDTSevere Thunderstorm WarningOUNCaddo, Kiowa48 min
Jun 1, 10:23 PM CDTFlash Flood WarningOUNKiowa3 hr
Jun 1, 10:27 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole48 min
Jun 1, 10:27 PM CDTSevere Thunderstorm WarningOUNLincoln48 min
Jun 1, 11:30 PM CDTSevere Thunderstorm WarningOUNKiowa30 min
Jun 2, 12:44 AM CDTFlash Flood WarningOUNCaddo, Comanche, Kiowa, Tillman3 hr
Jun 2, 1:56 AM CDTFlash Flood WarningOUNGrady109 min
Jun 2, 3:44 AM CDTFlash Flood WarningOUNCaddo, Comanche, Kiowa2 hr
Jun 2, 3:44 AM CDTFlash Flood WarningOUNHarmon, Jackson2 hr
Jun 2, 6:00 AM CDTFlash Flood WarningOUNCaddo2 hr
Jun 2, 4:48 PM CDTSevere Thunderstorm WarningOUNJefferson, Love42 min
Jun 2, 6:10 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston50 min

Nearby

Flash Flood Warnings in Oklahoma, 1991Every flash flood warning in 1991

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.