Alert archive / Louisiana / Flash Flood Warnings in 1991

Flash Flood Warning 13, NWS Lake Charles, LA

April 14, 1991Cameron Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Apr 14, 1991, 6:35 PM CDT for Cameron Parish, Louisiana. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Apr 14, 1991, 6:35 PM CDT (23:35 UTC)
Expired
Apr 14, 1991, 8:30 PM CDT
In force
115 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Cameron Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.6 hours before the alert went out and 30 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 1991-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1484 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 1991-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
1484 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 142336
FFWLCH
LAC023-150130-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
635 PM CDT SUN APR 14 1991
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST LOUISIANA
 
   ...CAMERON PARISH
 
VERY HEAVY RAIN HAS FALLEN OVER CAMERON PARISH DURING THE LAST TWO
HOURS AND HEAVY RAINFALL WILL CONTINUE WITH AN ADDITIONAL TWO TO THREE
INCHES OF RAIN DURING THE NEXT TWO HOURS.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

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, Apr 14, 12:49 PM CDT, 5 hours 46 minutes before
LAZ001-002-003-005-006-007-008-009-011-012-013-014-MSZ010-
TXZ028-032-033-045-046-047-048-049-141845-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1245 PM CDT SUN APR 14 1991

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1 PM CDT FOR VERNON
PARISH...
...A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR CENTRAL AND SOUTHWEST
LOUISIANA...

...STRONG THUNDERSTORMS WITH VERY HEAYV RAIN CONTINUE TO MOVE ACROSS
PARTS OF BEAUREGARD AND VERNON PARISHES THIS AFTERNOON...

AT 1232 PM...A LINE OF THUNDERSTORMS WAS SHOWN FROM JUST WEST OF
JENA...TO THE DE RIDDER AREA...INTO TO TEXAS TO JUST NORTH OF
BEAUMONT TEXAS.  THE STRONGEST THUNDERSTORMS WERE DETECTED
FROM THE DE RIDDER AREA...TO 25 MILES WEST OF VINTON.  THE THUNDERSTORMS
WERE MOVING NORTHEAST AT 50 MILES AN HOUR.

ALTHOUGH THE THUNDERSTORMS WERE MOVING AT A RAPID PACE...THE
ACTIVITY HAS BE MOVING OVER THE SAME AREA DURING THE PAST
TWO HOURS.  THE GROUND IS SATURATED ACROSS THESE PARISHES AND
ADDITIONAL RAINFALL WILL CAUSE FLOODING OF LOW LYING AREAS AND
ROADWAYS.

RESIDENTS SHOULD CHECK PREPAREDNESS REQUIREMENTS AND MOVE TO
A PLACE OF SAFETY FLOODING OCCURS OR A WARNING IS ISSUED.

IN ADDITION...STRONG GUSTY WINDS...AND DANGEROUS CLOUD TO GROUND
LIGHTNING CAN BE ANTICIPATED WITH THE PASSAGE OF THE THUNDERSTORMS.
Special weather statement, Apr 14, 12:56 PM CDT, 5 hours 39 minutes before
LAZ001-002-003-005-006-007-008-009-011-012-013-014-MSZ010-
TXZ028-032-033-045-046-047-048-049-141845-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1245 PM CDT SUN APR 14 1991

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1 PM CDT FOR VERNON
PARISH...
...A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR CENTRAL AND SOUTHWEST
LOUISIANA...

...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE TO MOVE ACROSS
PARTS OF BEAUREGARD AND VERNON PARISHES THIS AFTERNOON...

AT 1232 PM...A LINE OF THUNDERSTORMS WAS SHOWN FROM JUST WEST OF
JENA...TO THE DE RIDDER AREA...INTO TO TEXAS TO JUST NORTH OF
BEAUMONT.  THE STRONGEST THUNDERSTORMS WERE DETECTED FROM THE
DE RIDDER AREA...TO 25 MILES WEST OF VINTON.  THE THUNDERSTORMS
WERE MOVING NORTHEAST AT 50 MILES AN HOUR.

ALTHOUGH THE THUNDERSTORMS WERE MOVING AT A RAPID PACE...THE
ACTIVITY HAS BE MOVING OVER THE SAME AREA DURING THE PAST
TWO HOURS.  THE GROUND IS SATURATED ACROSS THESE PARISHES AND
ADDITIONAL RAINFALL WILL CAUSE FLOODING OF LOW LYING AREAS AND
ROADWAYS.

RESIDENTS SHOULD CHECK PREPAREDNESS REQUIREMENTS AND MOVE TO
A PLACE OF SAFETY FLOODING OCCURS OR A WARNING IS ISSUED.

IN ADDITION...STRONG GUSTY WINDS...AND DANGEROUS CLOUD TO GROUND
LIGHTNING CAN BE ANTICIPATED WITH THE PASSAGE OF THE THUNDERSTORMS.

ELSEHWERE...A LARGE AREA OF RAIN CONTINUED FROM OVER THE COASTAL
WATERS FROM WHITE LAKE LOUISIANA TO HIGH ISLAND TEXAS...INLAND
TO THE BUNKIE LOUISIANA AND CONROE TEXAS AREAS...TO WELL NORTH JENA
...MANSFIELD LOUISIANA...AND LUFKIN TEXAS.
Special weather statement, Apr 14, 1:53 PM CDT, 4 hours 42 minutes before
LAZ001-002-003-005-006-007-008-009-011-012-013-014-MSZ010-
TXZ028-032-033-045-046-047-048-049-141952-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
150 PM CDT SUN APR 14 1991

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

...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE TO MOVE ACROSS
PARTS OF BEAUREGARD PARISH THIS AFTERNOON...

AT 130 PM...A CLUSTER OF THUNDERSTORMS WAS NEAR DE RIDDER TO JUST
WEST OF DE QUINCY.  THESE THUNDERSTORMS CONTINUE OVER AN AREA WHERE
HEAVY RAIN HAS BEEN FALLING FOR THE PAST COUPLE OF HOURS.

PERIODS OF VERY HEAVY RAIN..STRONG GUSTY WINDS..SMALL HAIL..AND STREET
FLOODING ARE POSSIBLE WITH THESE THUNDERSTORMS OVER BEAREGUARD PARISH
DURING THE NEXT HOUR OR TWO AS THEY MOVE NORTHEAST AT 45 MPH.
A LARGE AREA OF RAIN WITH A FEW THUNDERSTORMS..WITH VERY HEAVY RAIN..
CONTINUED ALONG AND NORTHWEST OF A LINE FROM NATCHEZ MISSISSIPPI TO
NEAR JENNINGS TO NEAR GALVESTON.  THE ACTICITY EXTENDED TO NORTHERN
TOLEDO BEND LAKE AND TO JUST EAST OF COLLEGE STATION TEXAS.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE SHOWN FROM NORTHEAST OF
LAFAYETTE TO NORTHEAST OF BATON ROUGE.

WIDMELY SCATTERED SHOWERS AND THUNDERSTORMS WERE ALSO SHOWN OVER THE GULF
FROM EAST OF GALVESTON TO 20 MILES SOUTH OF CAMERON AND EXTENDED TO 80
MILES OFFSHORE SOUTH OF CAMERON.

MOVEMENT WAS NORTHEAST AT 45 MPH.
Local storm report, Apr 14, 5:54 PM CDT, 41 minutes before
ATTN SELS BPT

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PORT ARTHUR TX

1032 AM CDT...NACOGDOCHES COUNTY SHERIFFS OFFICE REPORTED PARTS
              OF STATE HIGHWAY 21 AND 7 WEST IN NACOGDOCHES
              COUNTY UNDER A FOOT OF WATER.

1135 AM CDT...SAN AUGUSTINE COUNTY SHERIFFS OFFICE REPORTED SOME
              URBAN STREET FLOODING IN SAN AUGUSTINE IN SAN
              AUGUSTINE COUNTY.

105 PM CDT...KTRK LUFKIN RADIO STATION REPORTED WIDESPREAD STREET
             FLOODING IN LUFKIN IN ANGELINA GOUNTY WITH WATER
             DEPTHS NEAR 16 INCHS.

413 PM CDT...PORT ARTHUR POLICE DEPARTMENT REPORTED 9TH AVE. IN
             PORT ARTHUR IN JEFFERSON COUNTY WAS CLOSED FROM
             TURTLE CREEK TO 75TH. ALSO MEMORAL BLVD CLOSED NEAR
             19TH ST. IN PORT ARTHUR. ALSO REPORTED WIDESPREAD
             FLOODING IN PORT ACRES IN JEFFERSON COUNTY.

455 PM CDT...ORANGE COUNTY POLICE DEPARTMENT REPORTED ALL STREETS
             IN ORANGE FLOODED WITH BLUEBONNET ROAD INPASSABLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 9:01 PM CDTSevere Thunderstorm WarningLCHLafayette44 min
Apr 14, 2:36 PM CDTSevere Thunderstorm WarningLCHBeauregard54 min
Apr 14, 3:59 PM CDTTornado WarningLCHCameron76 min
Apr 14, 4:09 PM CDTFlash Flood WarningLCHAllen, Evangeline2 hr
Apr 14, 4:09 PM CDTFlash Flood WarningLCHCalcasieu2 hr
Apr 14, 4:27 PM CDTSevere Thunderstorm WarningLCHCalcasieu63 min
Apr 14, 5:14 PM CDTSevere Thunderstorm WarningLCHCameron61 min
Apr 14, 5:29 PM CDTSevere Thunderstorm WarningLCHCalcasieu61 min
Apr 14, 6:14 PM CDTSevere Thunderstorm WarningLCHCameron61 min

Nearby

Flash Flood Warnings in Louisiana, 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.