Alert archive / Louisiana / Flash Flood Warnings in 1987

Flash Flood Warning 5, NWS Lake Charles, LA

November 16, 1987Grant Parish, LaSalle Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Nov 16, 1987, 9:08 AM CST for Grant Parish, LaSalle Parish, Rapides Parish, Louisiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Nov 16, 1987, 9:08 AM CST (15:08 UTC)
Expired
Nov 16, 1987, 12:00 PM CST
In force
3 hr
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Grant Parish, LA, LaSalle Parish, LA, Rapides Parish, LA

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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.1 hours before the alert went out and 170 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, Lake Charles Mun, LA at 12:00Z on 1987-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1739 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, Lake Charles Mun, LA at 12:00Z on 1987-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 323 square meters per square second.19395878Sfc1 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
1739 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
323 m²/s²
0-3 km storm-relative helicity
366 m²/s²
Significant tornado parameter
2.4
Supercell composite
12.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 161600
FFWLCH
LAC043-059-079-161800-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ALEXANDRIA LA
ISSUED BY LAKE CHARLES
908 AM CST MON NOV 16 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL NOON CST FOR PEOPLE IN THE FOLLOWING PARISHES...
 
IN CENTRAL LOUISIANA
          ...GRANT...LA SALLE...RAPIDES
 
RADAR CONTINUES TO SHOW HEAVY RAINS IN CENTRAL LOUISIANA. RAINFALL
TOTALS DURING THE NIGHT HAVE BEEN BETWEEN 8 AND 11 INCHES SO ALL
DRAINAGE SYSTEMS ARE FULL.  SEVERE FLOODING IS REPORTED IN SOME
AREAS.
 
A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOTt
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER 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.
 
J4  
     
  NY ZONE 14     2.0  3.3  4.0  4.

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

Special weather statement, Nov 16, 3:46 AM CST, 5 hours 22 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED....
NATIONAL WEATHER SERVICE PORT ARTHUR TX
345 AM CST MON NOV 16 1987

...THE TORNADO WARNING ISSUED EARLIER FOR ORANGE COUNTY AND THE
SEVERE THUNDERSTORM WARNING FOR JEFFERSON AND ORANGE HAS BEEN
DISCONTINUED...

AT 340 AM CST THIS MORNING THE WEATHER RADAR SHOWED STRONG
THUNDERSTORMS EAST OF THE CITY OF ORANGE MOVING NORTHEAST AT 30
MPH.

OTHER THUNDERSTORMS WITH HEAVY RAINFALL WERE ALONG A LINE
FROM( FANNETT NORTHEAST TOWARD LUMBERTON TO DEWEYVILLE TEXAS.

ANOTHER AREA OF HEAVY THUNDERSTORMS WAS IN THE EAST TEXAS LAKES AREA
FROM WOODVILLE TO LAKE SAM RAYBURN TO HEMPHILL.

M
Local storm report, Nov 16, 3:50 AM CST, 5 hours 18 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA...
345 AM CST MON NOV 16 1987

315AM CST...TORNADO TOUCHED DOWN JUST NORTH OF EDGERLY LA.OR ABOUT
5 MILES WEST OF SULPHUR LA. SEVERAL MOBILE HOMES DESTROYED OR
DAMAGED...REPORTS OF INJURIES...YOUNG BOY PUNCTURE TO HEAD...MOTHER
LACARATIONS TO FACE...GIRL STITCHES TO LEG...ALL INJURIES WERE
SUPERFICIAL...REPORT RECEIVED AT 330 AM BY WEATHER SERVICE BY
CALCASIEU PARISH SHERIFFS DEPT.
Special weather statement, Nov 16, 5:36 AM CST, 3 hours 32 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
535 AM CST MON NOV 16 1987

...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHWEST AND CENTRAL
LOUISIANA TODAY...

AT 525 AM...CLUSTERS OF THUNDERSTORMS WITH HEAVY RAINS WERE SHOWN
IN CENTRAL LOUISIANA FROM NORTHEAST OF LAKE CHARLES TO SOUTHWEST OF
ALEXANDRIA AND FROM THE SOUTH PART OF TOLEDO BEND RESERVOIR TO NEAR
DEQUINCY.

WIDESPREAD RAIN AND THUNDERSHOWERS COVERED MOST OF NORTHWEST...WEST
AND SOUTHWEST LOUISIANA...AND ACROSS CENTRAL LOUISIANA.

A BAND OF SHOWERS DEVELOPED FROM NORTHEAST OF BUNKIE LOUISIANA TO NEAR
WHITE LAKE WHILE THUNDERSHOWERS AND SHOWERS WERE LOCATED IN EAST AND
SOUTHEAST TEXAS NEAR LU@FKIN AND HOUSTON TO GALVESTON AND FREEPORT.

WIDELY SCATTERED SHOWERS WERE IN THE GULF FROM CAMERON LOUISIANA
TO BEYOND 125 MILES SOUTH OF CAMERON.

THE THUNDERSTORMS WERE MOVING NORTH EAST AT 40 MPH.
Special weather statement, Nov 16, 6:37 AM CST, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
632 AM CST MON NOV 16 1987

...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHWEST AND CENTRAL
LOUISIANA TODAY...

AT 625 AM...WIDESPREAD RAIN AND THUNDERSTORMS COVERED MOST OF CENTRAL
...NORTHWEST...AND WEST LOUISIANA INTO EAST AND SOUTHEAST TEXAS.

CLUSTERS OF THUNDERSTORMS MIXED IN THE RAIN WERE INDICATED ACROSS
VERNON AND RAPIDES PARISH...WEST OF KIRBYVILLE TEXAS...AND FROM
HOUSTON ACROSS FREEPORT AND GALVESTON.

THE RAIN AND THUNDERSTORMS FROM VERNON TO RAPIDES PARISH HAVE ALREADY
PRODUCED SOME REPORTED FLOODING OF STREETS AND LOW LYING AREAS.

THESE RAINS WILL CONTINUE THROUGHOUT THE MORNING.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH.
Special weather statement, Nov 16, 7:37 AM CST, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
730AM CST MON NOV 16 1987

...VERY HEAVY THUNDERSTORMS MOVING INTO JEFFERSON COUNTY...

WEATHER RADAR SHOWS AN AREA OF VERY HEAVY THUNDERSTORMS MOVING INTO
JEFFERSON COUNTY TEXAS FROM HOUSTON.  THESE STORMS EARLIER PRODUCED
SOME DAMAGING WINDS NEAR ALVIN. THE STORMS WERE MOVING NORTHEAST AT
ABOUT 35 MPH.

GUSTY WINDS AND A HEAVY DOWNPOUR SHOULD BE EXPECTED WITH THESE
STORMS.

DURING THE PAST 24 HOURS 2 TO 4 INCHES OF RAIN HAVE FALLEN ACROSS
THE METROPOLITAN AREA.  FURTHER NORTH AROUND THE LAKES AREA AMOUNTS
WERE IN THE 4 TO 6 INCH RANGE. DUE TO THE LACK OF RAIN FOR THE LAST
SEVERAL WEEKS LOCAL RIVERS AND STREAMS HAVE PLENTY OF CAPACITY..
HOWEVER LOCAL URBAN FLOODING AND PONDING PROBLEMS COULD OCCUR WITH
THE HEAVIEST STORMS.
Special weather statement, Nov 16, 8:45 AM CST, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PORT ARTHUR TX
845AM CST MON NOV 16 1987

WEATHER RADARS SHOW VERY HEAVY THUNDERSTORMS OVER PARTS OF SOUTHEAST
TEXAS.  THE STORMS WERE LOCATED TO THE NORTH AND WEST OF THE
METROPOLITAN AREA.  THE STORMS COVERED MUCH OF HARDIN COUNTY AND
SOUTHERN JASPER COUNTY.  THE STORMS WERE MOVING TO THE NORTHEAST AT
35 MPH.

HEAVY RAINS AND GUSTY WINDS WILL ACCOMPANY THESE STORMS.  ADDITIONAL
STORMS WERE LkOCATED NORTH AND WEST OF HOUSTON.  THESE STORMS MAY
AFFECT OUR AREA LATER THIS MORNING.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 15, 7:50 PM CSTSevere Thunderstorm WarningLCHCalcasieu55 min
Nov 15, 8:08 PM CSTTornado WarningLCHCalcasieu52 min
Nov 15, 8:44 PM CSTSevere Thunderstorm WarningLCHAllen46 min
Nov 15, 9:49 PM CSTTornado WarningLCHBeauregard56 min
Nov 16, 2:57 AM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu63 min
Nov 16, 4:00 AM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu60 min
Nov 16, 4:00 AM CSTSevere Thunderstorm WarningLCHAllen60 min
Nov 16, 7:00 AM CSTFlash Flood WarningLCHGrant, LaSalle, Rapides2 hr
Nov 16, 10:34 AM CSTSevere Thunderstorm WarningLCHBeauregard, Vernon56 min
Nov 16, 10:34 AM CSTSevere Thunderstorm WarningLCHCalcasieu, Cameron56 min
Nov 16, 11:02 AM CSTSevere Thunderstorm WarningLCHAllen, Rapides58 min
Nov 16, 11:02 AM CSTSevere Thunderstorm WarningLCHJefferson Davis58 min
Nov 16, 11:38 AM CSTSevere Thunderstorm WarningLCHAcadia, Lafayette, Vermilion2 hr
Nov 16, 11:38 AM CSTSevere Thunderstorm WarningLCHEvangeline2 hr
Nov 16, 12:00 PM CSTFlash Flood WarningLCHGrant, LaSalle, Rapides4 hr
Nov 16, 12:17 PM CSTTornado WarningLCHAcadia, Jefferson Davis43 min
Nov 16, 12:45 PM CSTTornado WarningLCHRapides60 min

Nearby

Flash Flood Warnings in Louisiana, 1987Every flash flood warning in 1987

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.