Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 39, NWS New Orleans, LA

February 12, 2024Terrebonne Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 12, 2024, 1:56 AM CST for Terrebonne Parish, Louisiana. It was in force for 38 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: Feb 12, 2024, 1:56 AM CST (07:56 UTC)
Expired: Feb 12, 2024, 2:34 AM CST
In force: 38 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Terrebonne Parish, LA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 11, 6:56 PM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.9 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: 1167 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 666 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 5.5

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 Feb 12, 12:50 AM CST, 1 hour 6 minutes earlier.

Area forecast discussion, Feb 12, 12:50 AM CST, 1 hour 6 minutes before

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In the hours before

Special weather statement, Feb 12, 1:29 AM CST, 27 minutes before

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Local storm report, Feb 12, 1:33 AM CST, 23 minutes before

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Local storm report, Feb 12, 1:37 AM CST, 19 minutes before

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Local storm report, Feb 12, 1:49 AM CST, 7 minutes before

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Special weather statement, Feb 12, 1:50 AM CST, 6 minutes before

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Local storm report, Feb 12, 1:54 AM CST, 2 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 11, 7:46 PM CST	Marine Dense Fog Advisory	LIX		10 hr
Feb 11, 8:45 PM CST	Special Weather Statement	LIX	Iberville	30 min
Feb 11, 9:09 PM CST	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, West Baton Rouge	20 min
Feb 11, 9:25 PM CST	Special Weather Statement	LIX	Livingston	35 min
Feb 11, 9:43 PM CST	Special Weather Statement	LIX	Iberville	32 min
Feb 11, 9:54 PM CST	Special Weather Statement	LIX	Tangipahoa	36 min
Feb 11, 10:00 PM CST	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	18 min
Feb 11, 10:12 PM CST	Special Weather Statement	LIX	East Baton Rouge	33 min
Feb 11, 10:17 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	28 min
Feb 11, 10:21 PM CST	Special Weather Statement	LIX	West Feliciana	24 min
Feb 11, 10:23 PM CST	Special Weather Statement	LIX	Washington	37 min
Feb 11, 10:35 PM CST	Severe Thunderstorm Warning	LIX	Washington	14 min
Feb 11, 10:46 PM CST	Special Weather Statement	LIX	Saint Helena	29 min
Feb 11, 11:04 PM CST	Special Weather Statement	LIX	East Baton Rouge, West Baton Rouge	26 min
Feb 11, 11:07 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, Livingston, West Baton Rouge	23 min
Feb 11, 11:12 PM CST	Special Weather Statement	LIX	Livingston	33 min
Feb 11, 11:14 PM CST	Areal Flood Advisory	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, West Baton Rouge	3 hr
Feb 11, 11:22 PM CST	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, West Baton Rouge	11 min
Feb 11, 11:34 PM CST	Flash Flood Warning	LIX	East Baton Rouge, Livingston, West Baton Rouge	2 hr
Feb 11, 11:37 PM CST	Special Weather Statement	LIX	Iberville	23 min
Feb 11, 11:43 PM CST	Special Weather Statement	LIX	East Feliciana	32 min
Feb 11, 11:55 PM CST	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston	35 min
Feb 12, 12:10 AM CST	Special Weather Statement	LIX	East Baton Rouge, Saint Helena	35 min
Feb 12, 12:17 AM CST	Severe Thunderstorm Warning Considerable damage threat	LIX	Livingston	28 min
Feb 12, 12:33 AM CST	Severe Thunderstorm Warning Considerable damage threat	LIX	Livingston, Tangipahoa	27 min
Feb 12, 12:38 AM CST	Special Weather Statement	LIX	Assumption	37 min
Feb 12, 12:49 AM CST	Special Weather Statement	LIX	Assumption	26 min
Feb 12, 12:54 AM CST	Severe Thunderstorm Warning	LIX	Saint Tammany, Tangipahoa, Washington	36 min
Feb 12, 12:59 AM CST	Severe Thunderstorm Warning	LIX	Ascension, Assumption, Saint James	31 min
Feb 12, 1:01 AM CST	Severe Thunderstorm Warning	LIX	Assumption, Lafourche, Terrebonne	29 min
Feb 12, 1:22 AM CST	Severe Thunderstorm Warning	LIX	Washington	38 min
Feb 12, 1:23 AM CST	Special Weather Statement	LIX	Saint John the Baptist	37 min
Feb 12, 1:29 AM CST	Special Weather Statement	LIX	Saint James	31 min
Feb 12, 1:38 AM CST	Special Marine Warning	LIX		67 min
Feb 12, 1:57 AM CST	Special Weather Statement	LIX	Saint Tammany	33 min
Feb 12, 2:26 AM CST	Severe Thunderstorm Warning	LIX	Lafourche, Saint Charles	34 min
Feb 12, 2:40 AM CST	Special Marine Warning	LIX		65 min
Feb 12, 2:47 AM CST	Special Marine Warning	LIX		58 min
Feb 12, 3:01 AM CST	Special Weather Statement	LIX	Orleans	29 min
Feb 12, 3:11 AM CST	Severe Thunderstorm Warning	LIX	Jefferson, Orleans, Saint Bernard	20 min
Feb 12, 3:27 AM CST	Special Marine Warning	LIX		63 min
Feb 12, 3:45 AM CST	Special Marine Warning	LIX		18 min
Feb 12, 3:56 AM CST	Wind Advisory	LIX	Jefferson, Orleans	20 hr
Feb 12, 3:58 AM CST	Gale Warning	LIX		18 hr
Feb 12, 3:58 AM CST	Small Craft Advisory	LIX		29 hr
Feb 12, 3:58 AM CST	Special Weather Statement	LIX	Jefferson	32 min
Feb 12, 4:07 AM CST	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Plaquemines, Saint Bernard	38 min
Feb 12, 4:32 AM CST	Special Marine Warning	LIX		58 min
Feb 12, 5:34 AM CST	Special Marine Warning	LIX		41 min
Feb 12, 10:34 AM CST	River Flood Warning	LIX	Washington	13 days
Feb 11, 7:45 PM CST	Dense Fog Advisory	LIX	Hancock, Harrison, Jackson	13 hr
Feb 11, 11:14 PM CST	Special Weather Statement	LIX	Pike	31 min
Feb 11, 11:17 PM CST	Special Weather Statement	LIX	Walthall	28 min
Feb 11, 11:34 PM CST	Severe Thunderstorm Warning	LIX	Walthall	26 min
Feb 11, 11:59 PM CST	Special Weather Statement	LIX	Amite	31 min
Feb 12, 12:41 AM CST	Special Weather Statement	LIX	Walthall	34 min
Feb 12, 1:50 AM CST	Special Weather Statement	LIX	Pearl River	40 min
Feb 12, 2:29 AM CST	Special Weather Statement	LIX	Pearl River	46 min
Feb 12, 4:01 AM CST	Special Weather Statement	LIX	Hancock	29 min
Feb 12, 5:39 AM CST	Special Weather Statement	LIX	Harrison	51 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.