Alert archive / Louisiana / Flash Flood Warnings in 1989

Flash Flood Warning 81, NWS Shreveport, LA

July 2, 1989Natchitoches Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Jul 2, 1989, 5:35 AM CDT for Natchitoches Parish, Louisiana. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1989, 5:35 AM CDT (10:35 UTC)
Expired
Jul 2, 1989, 7:30 AM CDT
In force
115 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Natchitoches 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

Longview/Gregg, TX (KGGG), launched 00:00Z, 10.6 hours before the alert went out and 158 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, Longview/Gregg, TX at 00:00Z on 1989-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 915 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, Longview/Gregg, TX at 00:00Z on 1989-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
915 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1115 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
91 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 Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 4:06 PM CDTSevere Thunderstorm WarningSHVCaddo69 min
Jul 2, 4:06 PM CDTSevere Thunderstorm WarningSHVBossier, Webster69 min
Jul 2, 4:37 PM CDTSevere Thunderstorm WarningSHVDe Soto68 min
Jul 2, 5:07 PM CDTSevere Thunderstorm WarningSHVBienville, Claiborne68 min
Jul 2, 5:07 PM CDTSevere Thunderstorm WarningSHVRed River68 min
Jul 2, 5:07 PM CDTSevere Thunderstorm WarningSHVSabine68 min
Jul 2, 5:47 PM CDTSevere Thunderstorm WarningSHVNatchitoches, Sabine, Winn88 min
Jul 2, 6:15 PM CDTSevere Thunderstorm WarningSHVJackson, Lincoln, Morehouse, Ouachita, Union60 min
Jul 2, 2:49 PM CDTSevere Thunderstorm WarningSHVBowie56 min
Jul 2, 3:47 PM CDTSevere Thunderstorm WarningSHVCass43 min
Jul 2, 2:49 PM CDTSevere Thunderstorm WarningSHVHoward, Sevier56 min
Jul 2, 2:49 PM CDTSevere Thunderstorm WarningSHVPike56 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.