Alert archive / Louisiana / Flash Flood Warnings in 1991

Flash Flood Warning 72, NWS Shreveport, LA

April 27, 1991Claiborne Parish, Lincoln Parish, Union Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Apr 27, 1991, 8:58 PM CDT for Claiborne Parish, Lincoln Parish, Union Parish, Louisiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 27, 1991, 8:58 PM CDT (01:58 UTC)
Expired
Apr 28, 1991, 12:00 AM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Claiborne Parish, LA, Lincoln Parish, LA, Union Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.0 hours before the alert went out and 248 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, Jackson, MS at 00:00Z on 1991-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3219 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, Jackson, MS at 00:00Z on 1991-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 square meters per square second.193958Sfc1 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
3219 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

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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
Apr 27, 7:30 PM CDTSevere Thunderstorm WarningSHVBienville, Claiborne, Webster75 min
Apr 27, 8:13 PM CDTSevere Thunderstorm WarningSHVMorehouse, Ouachita, Union2 hr
Apr 27, 8:58 PM CDTFlash Flood WarningSHVBienville, Jackson, Webster3 hr
Apr 27, 9:06 PM CDTSevere Thunderstorm WarningSHVEast Carroll, West Carroll2 hr
Apr 27, 9:19 PM CDTSevere Thunderstorm WarningSHVClaiborne56 min
Apr 27, 9:40 PM CDTFlash Flood WarningSHVMorehouse, Ouachita2 hr
Apr 27, 9:40 PM CDTFlash Flood WarningSHVEast Carroll, West Carroll2 hr
Apr 27, 11:51 PM CDTFlash Flood WarningSHVBienville, Claiborne, Webster3 hr
Apr 28, 1:32 AM CDTFlash Flood WarningSHVBossier, Caddo118 min
Apr 28, 3:07 AM CDTFlash Flood WarningSHVClaiborne, Webster6 hr
Apr 28, 3:07 AM CDTFlash Flood WarningSHVBossier, Caddo6 hr
Apr 28, 5:23 AM CDTFlash Flood WarningSHVMorehouse, Ouachita, Union4 hr
Apr 28, 7:33 AM CDTSevere Thunderstorm WarningSHVLincoln, Union57 min
Apr 28, 8:11 AM CDTFlash Flood WarningSHVEast Carroll, Richland, West Carroll4 hr
Apr 28, 9:23 AM CDTFlash Flood WarningSHVClaiborne, Lincoln, Ouachita, Union4 hr
Apr 28, 9:23 AM CDTFlash Flood WarningSHVWebster4 hr
Apr 28, 9:23 AM CDTFlash Flood WarningSHVMorehouse4 hr
Apr 28, 2:17 PM CDTSevere Thunderstorm WarningSHVBienville, Natchitoches, Red River58 min
Apr 28, 2:25 PM CDTSevere Thunderstorm WarningSHVCaddo, De Soto65 min
Apr 28, 2:25 PM CDTSevere Thunderstorm WarningSHVBossier, Webster65 min
Apr 28, 3:21 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo, Webster99 min
Apr 28, 3:21 PM CDTSevere Thunderstorm WarningSHVClaiborne, Union99 min
Apr 28, 3:56 PM CDTSevere Thunderstorm WarningSHVMadison, Tensas2 hr
Apr 28, 3:56 PM CDTSevere Thunderstorm WarningSHVMorehouse2 hr
Apr 28, 4:36 PM CDTSevere Thunderstorm WarningSHVEast Carroll, West Carroll69 min
Apr 28, 5:20 PM CDTSevere Thunderstorm WarningSHVCaddo85 min
Apr 28, 5:54 PM CDTFlash Flood WarningSHVCaddo, De Soto4 hr
Apr 28, 5:54 PM CDTFlash Flood WarningSHVBossier, Webster4 hr
Apr 28, 6:26 PM CDTSevere Thunderstorm WarningSHVBossier, Webster79 min
Apr 28, 6:26 PM CDTSevere Thunderstorm WarningSHVDe Soto, Red River79 min
Apr 28, 6:45 PM CDTSevere Thunderstorm WarningSHVCaddo45 min
Apr 27, 11:07 PM CDTSevere Thunderstorm WarningSHVRusk88 min
Apr 27, 11:41 PM CDTTornado WarningSHVGregg94 min
Apr 28, 12:09 AM CDTSevere Thunderstorm WarningSHVCass2 hr
Apr 28, 12:09 AM CDTSevere Thunderstorm WarningSHVHarrison, Panola2 hr
Apr 28, 12:28 AM CDTSevere Thunderstorm WarningSHVBowie62 min
Apr 28, 12:28 AM CDTSevere Thunderstorm WarningSHVGregg62 min
Apr 28, 4:21 AM CDTFlash Flood WarningSHVHarrison5 hr
Apr 28, 3:56 PM CDTSevere Thunderstorm WarningSHVGregg, Rusk2 hr
Apr 28, 3:56 PM CDTSevere Thunderstorm WarningSHVCass, Marion2 hr
Apr 28, 5:00 PM CDTSevere Thunderstorm WarningSHVHarrison60 min
Apr 28, 5:20 PM CDTSevere Thunderstorm WarningSHVBowie, Cass85 min
Apr 28, 5:20 PM CDTSevere Thunderstorm WarningSHVRusk, Shelby85 min
Apr 28, 5:54 PM CDTFlash Flood WarningSHVGregg, Rusk91 min
Apr 28, 5:54 PM CDTFlash Flood WarningSHVBowie, Cass, Marion4 hr
Apr 28, 12:54 AM CDTFlash Flood WarningSHVColumbia2 hr
Apr 28, 12:54 AM CDTFlash Flood WarningSHVLittle River2 hr
Apr 28, 3:56 PM CDTSevere Thunderstorm WarningSHVColumbia, Lafayette2 hr
Apr 28, 5:54 PM CDTFlash Flood WarningSHVHempstead, Lafayette, Little River, Nevada4 hr

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.