Alert archive / Louisiana / Flash Flood Warnings in 1989

Flash Flood Warning 22, NWS Lake Charles, LA

May 18, 1989Allen Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at May 18, 1989, 1:03 PM CDT for Allen Parish, Louisiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 18, 1989, 1:03 PM CDT (18:03 UTC)
Expired
May 18, 1989, 5:00 PM CDT
In force
4 hr
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Allen 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, 6.1 hours before the alert went out and 69 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 1989-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 1989-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, May 18, 7:42 AM CDT, 5 hours 21 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
741 AM CDT THU MAY 18 1989

...A FLASH FLOOD WATCH IS IN EFFECT THROUGH TODAY INCLUDING PARTS OF
CENTRAL...SOUTHWEST...AND SOUTH CENTRAL LOUISIANA.

AT 730 AM...THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED OVER PARTS OF
CAMERON...CALCASIEU...BEAUREGARD...AND ALLEN PARISHES AND HAD DEVELOPED
OVER JEFF DAVIS PARISH.

THESE STORMS WERE PRODUCING VERY HEAVY RAINS CAUSING FLOODING OF
STREETS AND SMALL STREAMS AS WELL AS DANGEROUS LIGHTNING AND POSSIBLY
SOME SMALL HAIL.

REPORTS INDICATE SOME STREET FLOODING IN THE CITY OF LAKE CHARLES AS
WELL AS VINTON AND DEQUINCY IN CALCASIEU PARISH.

THESE WERE PART OF A LARGE MASS OF RAIN AND THUNDERSTORMS THAT COVERED
MOST OF SOUTHWEST AND CENTRAL LOUISIANA AND EXTENDED INTO SOUTHEAST
TEXAS. NEW DEVELOPMENT WAS TAKING PLACE IN TEXAS BETWEEN JASPER...
HOUSTON...AND LAKE LIVINGSTON.

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 10:42 PM CDTSevere Thunderstorm WarningLCHVernon63 min
May 17, 11:05 PM CDTSevere Thunderstorm WarningLCHBeauregard55 min
May 17, 11:50 PM CDTSevere Thunderstorm WarningLCHGrant, LaSalle, Rapides2 hr
May 18, 2:30 AM CDTSevere Thunderstorm WarningLCHRapides60 min
May 18, 7:51 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Jefferson Davis3 hr
May 18, 7:51 AM CDTFlash Flood WarningLCHAllen3 hr
May 18, 8:28 AM CDTFlash Flood WarningLCHVernon3 hr
May 18, 11:04 AM CDTFlash Flood WarningLCHAllen, Evangeline, Jefferson Davis116 min
May 18, 11:04 AM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Vernon116 min
May 18, 11:25 AM CDTTornado WarningLCHAcadia35 min
May 18, 11:39 AM CDTTornado WarningLCHLafayette51 min
May 18, 12:22 PM CDTTornado WarningLCHLafayette38 min
May 18, 12:28 PM CDTTornado WarningLCHCalcasieu62 min
May 18, 12:34 PM CDTSevere Thunderstorm WarningLCHBeauregard56 min
May 18, 12:41 PM CDTSevere Thunderstorm WarningLCHCameron49 min
May 18, 1:03 PM CDTFlash Flood WarningLCHBeauregard, Calcasieu, Jefferson Davis4 hr
May 18, 1:31 PM CDTSevere Thunderstorm WarningLCHAcadia, Allen, Evangeline, Jefferson Davis, Lafayette, Vermilion119 min
May 18, 1:31 PM CDTSevere Thunderstorm WarningLCHCameron119 min
May 17, 8:07 PM CDTFlash Flood WarningLCHAngelina, Nacogdoches, San Augustine2 hr
May 17, 10:12 PM CDTFlash Flood WarningLCHHardin, Jasper, Tyler3 hr
May 17, 10:12 PM CDTFlash Flood WarningLCHNacogdoches3 hr
May 17, 10:24 PM CDTSevere Thunderstorm WarningLCHHardin66 min
May 17, 10:43 PM CDTFlash Flood WarningLCHNewton3 hr
May 18, 1:29 AM CDTFlash Flood WarningLCHNewton2 hr
May 18, 1:29 AM CDTFlash Flood WarningLCHHardin, Jasper2 hr
May 18, 6:20 AM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange5 hr
May 18, 6:20 AM CDTFlash Flood WarningLCHTyler5 hr
May 18, 11:09 AM CDTFlash Flood WarningLCHHardin2 hr
May 18, 12:07 PM CDTFlash Flood WarningLCHJasper, Newton2 hr
May 18, 12:22 PM CDTFlash Flood WarningLCHOrange2 hr
May 18, 1:23 PM CDTFlash Flood WarningLCHHardin2 hr
May 18, 2:03 PM CDTSevere Thunderstorm WarningLCHJasper, Newton57 min
May 18, 2:03 PM CDTSevere Thunderstorm WarningLCHTyler57 min
May 18, 2:09 PM CDTFlash Flood WarningLCHJasper, Newton2 hr
May 18, 3:30 PM CDTFlash Flood WarningLCHHardin3 hr
May 18, 4:21 PM CDTFlash Flood WarningLCHNewton3 hr

Nearby

Flash Flood Warnings in Louisiana, 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.