Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 52, NWS New Orleans, LA

March 15, 20246 parishes in Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Mar 15, 2024, 2:48 PM CDT for 6 parishes in Louisiana. It was in force for 57 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 15, 2024, 2:48 PM CDT (19:48 UTC)
Expired: Mar 15, 2024, 3:45 PM CDT
In force: 57 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jefferson Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint John the Baptist 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
Mar 15, 12:01 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.8 hours before the alert went out and 56 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: 1294 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 563 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 253 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.9

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 15, 1:52 PM CDT, 56 minutes earlier.

Area forecast discussion, Mar 15, 1:52 PM CDT, 56 minutes before

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In the hours before

Local storm report, Mar 15, 1:40 PM CDT, 1 hour 8 minutes before

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Local storm report, Mar 15, 2:08 PM CDT, 40 minutes before

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Local storm report, Mar 15, 2:13 PM CDT, 35 minutes before

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Special weather statement, Mar 15, 2:13 PM CDT, 35 minutes before

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      <p id="message2">
        Please try again in a few minutes.
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Special weather statement, Mar 15, 2:15 PM CDT, 33 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Mar 15, 2:46 PM CDT, 2 minutes before

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<body>
  <main class="wrap">
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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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
Mar 15, 11:40 AM CDT	Special Weather Statement	LIX	Saint John the Baptist	50 min
Mar 15, 11:41 AM CDT	Special Marine Warning	LIX		34 min
Mar 15, 11:55 AM CDT	Special Weather Statement	LIX	Livingston	35 min
Mar 15, 12:08 PM CDT	Special Marine Warning	LIX		79 min
Mar 15, 12:29 PM CDT	Special Weather Statement	LIX	East Feliciana, Pointe Coupee, West Feliciana	61 min
Mar 15, 12:51 PM CDT	Special Weather Statement	LIX	Saint Tammany	54 min
Mar 15, 12:56 PM CDT	Special Marine Warning	LIX		64 min
Mar 15, 1:11 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Tammany	46 min
Mar 15, 1:16 PM CDT	Special Weather Statement	LIX	Washington	59 min
Mar 15, 1:21 PM CDT	Tornado Warning	LIX	Orleans, Saint Tammany	39 min
Mar 15, 1:26 PM CDT	Special Weather Statement	LIX	East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, Tangipahoa and 1 more	49 min
Mar 15, 1:30 PM CDT	Special Marine Warning	LIX		60 min
Mar 15, 2:15 PM CDT	Special Weather Statement	LIX	Ascension, Assumption, Iberville, Livingston, Saint James, Saint John the Baptist and 3 more	45 min
Mar 15, 2:20 PM CDT	Special Marine Warning	LIX		115 min
Mar 15, 2:20 PM CDT	Special Marine Warning	LIX		85 min
Mar 15, 2:58 PM CDT	Special Weather Statement	LIX	Assumption, Lafourche	62 min
Mar 15, 3:11 PM CDT	Special Marine Warning	LIX		2 hr
Mar 15, 3:21 PM CDT	Marine Dense Fog Advisory	LIX		13 hr
Mar 15, 3:32 PM CDT	Special Weather Statement	LIX	Jefferson	43 min
Mar 15, 3:55 PM CDT	Special Weather Statement	LIX	Lafourche, Terrebonne	50 min
Mar 15, 4:00 PM CDT	Special Marine Warning	LIX		2 hr
Mar 15, 5:15 PM CDT	Special Marine Warning	LIX		59 min
Mar 15, 12:34 PM CDT	Special Weather Statement	LIX	Pike, Walthall	41 min
Mar 15, 1:04 PM CDT	Severe Thunderstorm Warning	LIX	Walthall	14 min
Mar 15, 1:40 PM CDT	Severe Thunderstorm Warning	LIX	Hancock	50 min
Mar 15, 2:13 PM CDT	Special Weather Statement	LIX	Harrison	32 min
Mar 15, 3:05 PM CDT	Special Weather Statement	LIX	Hancock, Harrison, Jackson	25 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.