Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 29, NWS New Orleans, LA

February 11, 2024East Baton Rouge Parish, Livingston Parish, West Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Feb 11, 2024, 11:07 PM CST for East Baton Rouge Parish, Livingston Parish, West Baton Rouge Parish, Louisiana. It was in force for 23 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 11, 2024, 11:07 PM CST (05:07 UTC)
Expired: Feb 11, 2024, 11:30 PM CST
In force: 23 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties East Baton Rouge Parish, LA, Livingston Parish, LA, West Baton Rouge 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, 5.1 hours before the alert went out and 132 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 11, 7:59 PM CST, 3 hours 8 minutes earlier.

Area forecast discussion, Feb 11, 7:59 PM CST, 3 hours 8 minutes before

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In the hours before

Special weather statement, Feb 11, 10:12 PM CST, 55 minutes before

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Special weather statement, Feb 11, 10:21 PM CST, 46 minutes before

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Special weather statement, Feb 11, 10:23 PM CST, 44 minutes before

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Local storm report, Feb 11, 10:35 PM CST, 32 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
1035 PM CST Sun Feb 11 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1025 PM     Hail             2 NNE Watson            30.60N 90.94W
02/11/2024  E1.00 inch       Livingston         LA   Public

            Quarter sized hail starting approx. 10:25 PM
            lasting for roughly 10 minutes.

&&

KLG

Special weather statement, Feb 11, 10:46 PM CST, 21 minutes before

Special Weather Statement
National Weather Service New Orleans LA
1046 PM CST Sun Feb 11 2024

LAZ037-048-071-083-120515-
Northern Livingston LA-St. Helena LA-Northern Tangipahoa LA-
East Baton Rouge LA-
1046 PM CST Sun Feb 11 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHERN ST. HELENA,
NORTH CENTRAL LIVINGSTON, NORTHERN TANGIPAHOA AND NORTHEASTERN EAST
BATON ROUGE PARISHES THROUGH 1115 PM CST
...

At 1046 PM CST, Doppler radar was tracking a strong thunderstorm near
Montpelier, or 13 miles southwest of Greensburg, moving northeast at
60 mph.

HAZARD...Winds in excess of 40 mph and penny size 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...
Greensburg, Amite, Amite City, Kentwood, Roseland, Montpelier,
Wilmer, and Tangipahoa.

This includes Interstate 55 in Louisiana between mile markers 43 and
61.

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.

A Tornado Watch remains in effect until 100 AM CST for southeastern
Louisiana...and southern Mississippi.

&&

LAT...LON 3100 9035 3091 9034 3089 9032 3078 9028
      3066 9053 3055 9082 3067 9092 3100 9043
TIME...MOT...LOC 0446Z 235DEG 54KT 3065 9076

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Zeringue

Special weather statement, Feb 11, 11:04 PM CST, 3 minutes before

Special Weather Statement
National Weather Service New Orleans LA
1104 PM CST Sun Feb 11 2024

LAZ047-048-083-120530-
Northern Livingston LA-West Baton Rouge LA-East Baton Rouge LA-
1104 PM CST Sun Feb 11 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN WEST
BATON ROUGE, NORTHWESTERN LIVINGSTON AND CENTRAL EAST BATON ROUGE
PARISHES THROUGH 1130 PM CST
...

At 1104 PM CST, Doppler radar was tracking a strong thunderstorm over
Port Allen, moving northeast at 50 mph.

HAZARD...Winds in excess of 40 mph and nickel size 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...
Baton Rouge, Zachary, Baker, Denham Springs, Port Allen, Brusly,
Merrydale, Watson, Brownfields, Greenwell Spring, and Baton Rouge
Airport.

This includes the following Interstates...
 Interstate 10 in Louisiana between mile markers 145 and 158.
 Interstate 110 in Louisiana between mile markers 1 and 8.

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.

A Tornado Watch remains in effect until 100 AM CST for southeastern
Louisiana.

&&

LAT...LON 3071 9103 3071 9101 3065 9091 3057 9073
      3037 9129 3043 9137
TIME...MOT...LOC 0504Z 237DEG 44KT 3045 9125

MAX HAIL SIZE...0.88 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
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, 11:12 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, 1:56 AM CST	Severe Thunderstorm Warning	LIX	Terrebonne	38 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.