Alert archive / Louisiana / Flash Flood Warnings in 1991

Flash Flood Warning 9, NWS Shreveport, LA

February 19, 1991Caldwell Parish, Franklin Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Feb 19, 1991, 6:03 AM CST for Caldwell Parish, Franklin Parish, Louisiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 1991, 6:03 AM CST (12:03 UTC)
Expired
Feb 19, 1991, 9:00 AM CST
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Caldwell Parish, LA, Franklin Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.1 hours before the alert went out and 172 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 12:00Z on 1991-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 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 12:00Z on 1991-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.1939587897117Sfc1 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
211 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
663 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
132 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
Feb 18, 9:08 PM CSTSevere Thunderstorm WarningSHVBienville, Claiborne82 min
Feb 19, 1:33 AM CSTSevere Thunderstorm WarningSHVBossier, Caddo87 min
Feb 19, 1:45 AM CSTFlash Flood WarningSHVBienville, Lincoln, Union4 hr
Feb 19, 1:45 AM CSTFlash Flood WarningSHVDe Soto, Red River4 hr
Feb 19, 2:30 AM CSTSevere Thunderstorm WarningSHVDe Soto60 min
Feb 19, 3:06 AM CSTSevere Thunderstorm WarningSHVSabine69 min
Feb 19, 3:32 AM CSTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River88 min
Feb 19, 4:09 AM CSTSevere Thunderstorm WarningSHVWinn81 min
Feb 19, 5:25 AM CSTSevere Thunderstorm WarningSHVCaldwell, Franklin, Richland65 min
Feb 19, 5:25 AM CSTSevere Thunderstorm WarningSHVWest Carroll65 min
Feb 19, 6:03 AM CSTFlash Flood WarningSHVWinn3 hr
Feb 19, 6:03 AM CSTFlash Flood WarningSHVBienville, Lincoln, Union3 hr
Feb 18, 8:41 PM CSTSevere Thunderstorm WarningSHVBowie, Cass79 min
Feb 18, 11:48 PM CSTSevere Thunderstorm WarningSHVGregg87 min
Feb 19, 12:14 AM CSTSevere Thunderstorm WarningSHVCass61 min
Feb 19, 12:43 AM CSTSevere Thunderstorm WarningSHVHarrison, Marion77 min
Feb 19, 12:43 AM CSTSevere Thunderstorm WarningSHVLafayette, Miller77 min
Feb 19, 12:55 AM CSTTornado WarningSHVLafayette65 min

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.