Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 47, NWS New Orleans, LA

March 8, 2024Terrebonne Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Mar 8, 2024, 2:05 PM CST for Terrebonne Parish, Louisiana. It was in force for 40 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: Mar 8, 2024, 2:05 PM CST (20:05 UTC)
Expired: Mar 8, 2024, 2:45 PM CST
In force: 40 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Terrebonne Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.1 hours before the alert went out and 150 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 105 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 354 m²/s²
0-3 km storm-relative helicity: 560 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 8, 12:32 PM CST, 1 hour 33 minutes earlier.

Area forecast discussion, Mar 8, 12:32 PM CST, 1 hour 33 minutes before

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In the hours before

Special weather statement, Mar 8, 1:50 PM CST, 15 minutes before

Special Weather Statement
National Weather Service New Orleans LA
150 PM CST Fri Mar 8 2024

LAZ066-082015-
Lower Terrebonne LA-
150 PM CST Fri Mar 8 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN
TERREBONNE PARISH THROUGH 215 PM CST
...

At 150 PM CST, Doppler radar was tracking a strong thunderstorm 16
miles west of Cocodrie, or 30 miles southwest of Houma, moving
northeast at 50 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Dulac, Montegut, Chauvin, Cocodrie, and Lumcon Center Buoy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2914 9095 2915 9098 2915 9101 2920 9106
      2955 9066 2955 9062 2937 9044 2909 9090
TIME...MOT...LOC 1950Z 229DEG 42KT 2919 9093

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Zeringue

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 3:28 AM CST	Small Craft Advisory	LIX		53 hr
Mar 8, 1:50 PM CST	Special Weather Statement	LIX	Terrebonne	25 min
Mar 8, 2:26 PM CST	Small Craft Advisory	LIX		42 hr
Mar 8, 2:35 PM CST	Severe Thunderstorm Warning	LIX	Lafourche	40 min
Mar 8, 2:39 PM CST	Special Weather Statement	LIX	Saint Helena	36 min
Mar 8, 2:59 PM CST	Special Weather Statement	LIX	Jefferson	31 min
Mar 8, 3:51 PM CST	Special Marine Warning	LIX		54 min
Mar 8, 4:07 PM CST	Flash Flood Warning	LIX	Washington	114 min
Mar 8, 4:16 PM CST	Special Weather Statement	LIX	Jefferson	29 min
Mar 8, 5:14 PM CST	Areal Flood Advisory	LIX	Jefferson, Orleans, Saint Bernard	100 min
Mar 8, 3:02 PM CST	Flash Flood Warning	LIX	Amite, Pike	96 min
Mar 8, 3:14 PM CST	Special Weather Statement	LIX	Walthall	46 min
Mar 8, 5:30 PM CST	Special Weather Statement	LIX	Pearl River	45 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2024 Every severe thunderstorm warning in 2024

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.