Alert archive / Louisiana / Flash Flood Warnings in 1989

Flash Flood Warning 10, NWS New Orleans, LA

July 14, 1989Saint Landry Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Jul 14, 1989, 6:32 AM CDT for Saint Landry Parish, Louisiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 14, 1989, 6:32 AM CDT (11:32 UTC)
Expired
Jul 14, 1989, 10:30 AM CDT
In force
4 hr
Issued by
NWS New Orleans, LA
Area
Whole counties

County Saint Landry 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 00:00Z, 11.5 hours before the alert went out and 126 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 00:00Z on 1989-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2803 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1989-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939Sfc1 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
2803 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
122 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.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 6:29 AM CDTFlash Flood WarningLIXSt. Mary3 hr
Jul 14, 5:35 PM CDTSevere Thunderstorm WarningLIXAvoyelles40 min

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.