Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 103, NWS New Orleans, LA

June 4, 2023Lafourche Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 4, 2023, 2:36 PM CDT for Lafourche Parish, Louisiana. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 4, 2023, 2:36 PM CDT (19:36 UTC)
Expired
Jun 4, 2023, 2:56 PM CDT
In force
20 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lafourche Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.6 hours before the alert went out and 107 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, Slidell Radar S, LA at 12:00Z on 2023-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 193 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, Slidell Radar S, LA at 12:00Z on 2023-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
193 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1536 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:12 PM CDTAreal Flood AdvisoryLIXLivingston3 hr
Jun 3, 7:30 PM CDTSpecial Weather StatementLIXAssumption45 min
Jun 3, 8:11 PM CDTSpecial Weather StatementLIXIberville34 min
Jun 3, 8:14 PM CDTSpecial Weather StatementLIXEast Baton Rouge46 min
Jun 3, 8:27 PM CDTSpecial Weather StatementLIXEast Feliciana33 min
Jun 3, 8:28 PM CDTSpecial Weather StatementLIXPointe Coupee32 min
Jun 3, 8:32 PM CDTSpecial Weather StatementLIXAssumption28 min
Jun 3, 8:52 PM CDTSpecial Weather StatementLIXSaint Helena83 min
Jun 3, 8:59 PM CDTSpecial Weather StatementLIXEast Baton Rouge31 min
Jun 3, 9:03 PM CDTSpecial Weather StatementLIXWest Baton Rouge27 min
Jun 3, 9:27 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, West Baton Rouge3 hr
Jun 3, 9:31 PM CDTSpecial Weather StatementLIXEast Baton Rouge, West Baton Rouge44 min
Jun 3, 9:34 PM CDTSpecial Marine WarningLIX56 min
Jun 3, 9:35 PM CDTSpecial Weather StatementLIXEast Feliciana55 min
Jun 3, 9:56 PM CDTSpecial Marine WarningLIX64 min
Jun 3, 10:03 PM CDTFlash Flood WarningLIXEast Baton Rouge, West Baton Rouge3 hr
Jun 3, 10:17 PM CDTSpecial Weather StatementLIXEast Baton Rouge43 min
Jun 4, 1:42 PM CDTSpecial Weather StatementLIXSaint Charles33 min
Jun 4, 2:02 PM CDTSpecial Weather StatementLIXWest Feliciana28 min
Jun 4, 2:23 PM CDTSpecial Weather StatementLIXLafourche37 min
Jun 4, 2:29 PM CDTSpecial Weather StatementLIXWest Feliciana31 min
Jun 4, 3:11 PM CDTSpecial Weather StatementLIXWest Feliciana34 min
Jun 4, 3:13 PM CDTSevere Thunderstorm WarningLIXTerrebonne47 min
Jun 4, 3:30 PM CDTSpecial Weather StatementLIXAscension, East Baton Rouge30 min
Jun 4, 3:42 PM CDTSpecial Weather StatementLIXEast Baton Rouge18 min
Jun 4, 3:51 PM CDTSpecial Marine WarningLIX54 min
Jun 4, 3:59 PM CDTSpecial Weather StatementLIXWest Baton Rouge31 min
Jun 4, 4:00 PM CDTSpecial Weather StatementLIXAssumption30 min
Jun 4, 4:10 PM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, Livingston, West Baton Rouge3 hr
Jun 4, 4:15 PM CDTSpecial Marine WarningLIX60 min
Jun 4, 4:26 PM CDTSpecial Weather StatementLIXAssumption, Iberville49 min
Jun 4, 4:37 PM CDTSpecial Weather StatementLIXPointe Coupee53 min
Jun 4, 4:55 PM CDTSpecial Weather StatementLIXAssumption50 min
Jun 4, 5:16 PM CDTSpecial Weather StatementLIXIberville29 min
Jun 3, 8:17 PM CDTSpecial Weather StatementLIXHarrison58 min
Jun 3, 8:46 PM CDTSpecial Weather StatementLIXHancock44 min
Jun 3, 8:51 PM CDTSevere Thunderstorm WarningLIXHancock, Harrison39 min
Jun 3, 9:06 PM CDTSpecial Weather StatementLIXWilkinson24 min
Jun 3, 9:28 PM CDTSpecial Weather StatementLIXHancock47 min
Jun 3, 9:51 PM CDTSpecial Weather StatementLIXHancock24 min
Jun 3, 10:15 PM CDTSpecial Weather StatementLIXHancock45 min
Jun 4, 3:18 PM CDTSpecial Weather StatementLIXWilkinson27 min
Jun 4, 3:54 PM CDTSpecial Weather StatementLIXJackson36 min
Jun 4, 4:33 PM CDTSpecial Weather StatementLIXHarrison42 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023Every severe thunderstorm warning in 2023

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.