Alert archive / Louisiana / Flash Flood Warnings in 1990

Flash Flood Warning 69, NWS Shreveport, LA

May 31, 1990Natchitoches Parish, Red River Parish, Sabine Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at May 31, 1990, 3:00 PM CDT for Natchitoches Parish, Red River Parish, Sabine Parish, Louisiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 31, 1990, 3:00 PM CDT (20:00 UTC)
Expired
May 31, 1990, 7:15 PM CDT
In force
4 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Natchitoches Parish, LA, Red River Parish, LA, Sabine 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 12:00Z, 8.0 hours before the alert went out and 135 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 12:00Z on 1990-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2910 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 12:00Z on 1990-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
2910 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
618 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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
May 30, 8:07 PM CDTFlash Flood WarningSHVCaddo, De Soto2 hr
May 30, 8:07 PM CDTFlash Flood WarningSHVBossier, Webster2 hr
May 30, 8:07 PM CDTTornado WarningSHVCaddo96 min
May 30, 8:07 PM CDTTornado WarningSHVBossier, Webster96 min
May 30, 8:07 PM CDTTornado WarningSHVDe Soto96 min
May 30, 9:43 PM CDTSevere Thunderstorm WarningSHVBienville, Bossier, Caddo, De Soto, Red River3 hr
May 30, 9:56 PM CDTFlash Flood WarningSHVCaddo4 hr
May 30, 9:56 PM CDTFlash Flood WarningSHVDe Soto4 hr
May 30, 9:56 PM CDTFlash Flood WarningSHVBossier, Red River4 hr
May 30, 10:40 PM CDTSevere Thunderstorm WarningSHVNatchitoches, Winn95 min
May 31, 10:25 AM CDTSevere Thunderstorm WarningSHVUnion95 min
May 31, 11:15 AM CDTFlash Flood WarningSHVCaddo, De Soto4 hr
May 31, 11:15 AM CDTFlash Flood WarningSHVBienville, Jackson, Lincoln, Ouachita, Winn4 hr
May 31, 11:15 AM CDTFlash Flood WarningSHVNatchitoches, Sabine4 hr
May 31, 11:15 AM CDTFlash Flood WarningSHVBossier, Claiborne, Webster4 hr
May 31, 11:15 AM CDTFlash Flood WarningSHVUnion4 hr
May 31, 11:15 AM CDTFlash Flood WarningSHVRed River4 hr
May 31, 1:45 PM CDTFlash Flood WarningSHVCaldwell, Franklin3 hr
May 31, 1:45 PM CDTFlash Flood WarningSHVMadison, Tensas3 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVCaddo, De Soto4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVBienville, Caldwell, Jackson, Lincoln, Ouachita, Winn4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVFranklin, Madison, Richland4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVBossier, Webster4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVTensas4 hr

Nearby

Flash Flood Warnings in Louisiana, 1990Every flash flood warning in 1990

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.