Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 173, NWS Lake Charles, LA

May 17, 2024Saint Martin Parish, St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at May 17, 2024, 12:25 AM CDT for Saint Martin Parish, St. Mary Parish, Louisiana. It was in force for 35 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: May 17, 2024, 12:25 AM CDT (05:25 UTC)
Expired: May 17, 2024, 1:00 AM CDT
In force: 35 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Saint Martin Parish, LA, St. Mary Parish, LA

The radar

The Hammond radar (KHDC), 130 km from the middle of the area, began a volume at 05:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.4 hours before the alert went out and 162 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: 1243 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 779 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 342 m²/s²
0-3 km storm-relative helicity: 496 m²/s²
Significant tornado parameter: 3.8
Supercell composite: 18.2

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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 16, 11:43 PM CDT, 42 minutes earlier.

Area forecast discussion, May 16, 11:43 PM CDT, 42 minutes before

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In the hours before

Local storm report, May 16, 11:53 PM CDT, 32 minutes before

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Local storm report, May 16, 11:54 PM CDT, 31 minutes before

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Local storm report, May 16, 11:55 PM CDT, 30 minutes before

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Local storm report, May 16, 11:57 PM CDT, 28 minutes before

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Local storm report, May 16, 11:59 PM CDT, 26 minutes before

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Special weather statement, May 17, 12:15 AM CDT, 10 minutes before

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The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 7:13 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	62 min
May 16, 7:16 PM CDT	Flash Flood Warning Considerable damage threat	LCH	Allen, Beauregard	3 hr
May 16, 7:18 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu	27 min
May 16, 7:26 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Allen, Avoyelles, Evangeline, Jefferson Davis, Lafayette and 3 more	64 min
May 16, 7:39 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Beauregard, Calcasieu, Jefferson Davis	51 min
May 16, 7:41 PM CDT	Special Marine Warning	LCH		34 min
May 16, 7:52 PM CDT	Flash Flood Warning	LCH	Beauregard, Calcasieu	2 hr
May 16, 7:52 PM CDT	Special Marine Warning	LCH		68 min
May 16, 8:15 PM CDT	Special Marine Warning	LCH		90 min
May 16, 8:21 PM CDT	Tornado Warning	LCH	Calcasieu, Jefferson Davis	7 min
May 16, 8:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Acadia, Allen, Calcasieu, Evangeline, Jefferson Davis, Vermilion	49 min
May 16, 8:31 PM CDT	Flash Flood Warning	LCH	Allen, Calcasieu, Jefferson Davis	104 min
May 16, 8:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Calcasieu, Cameron, Jefferson Davis	37 min
May 16, 8:45 PM CDT	Special Marine Warning	LCH		60 min
May 16, 8:56 PM CDT	Flash Flood Warning	LCH	Acadia, Evangeline, Saint Landry	3 hr
May 16, 9:01 PM CDT	Special Weather Statement	LCH	Allen, Cameron, Jefferson Davis	44 min
May 16, 9:06 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Cameron, Vermilion	39 min
May 16, 9:10 PM CDT	Tornado Warning	LCH	Cameron, Vermilion	24 min
May 16, 9:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Acadia, Cameron, Evangeline, Iberia, Jefferson Davis, Lafayette and 3 more	47 min
May 16, 9:27 PM CDT	Tornado Warning	LCH	Lafayette, Saint Martin	18 min
May 16, 9:30 PM CDT	Special Marine Warning	LCH		60 min
May 16, 9:40 PM CDT	Severe Thunderstorm Warning Destructive damage threat	LCH	Iberia, Lafayette, Saint Martin, St. Mary, Vermilion	35 min
May 16, 9:47 PM CDT	Tornado Warning	LCH	Iberia, Saint Martin	28 min
May 16, 9:49 PM CDT	Flash Flood Warning	LCH	Acadia, Iberia, Lafayette, Saint Landry, Saint Martin, St. Mary and 1 more	2 hr
May 16, 10:02 PM CDT	Severe Thunderstorm Warning	LCH	Saint Landry, Saint Martin	12 min
May 16, 10:07 PM CDT	Areal Flood Warning	LCH	Acadia, Allen, Beauregard, Calcasieu, Jefferson Davis, Vernon	7 hr
May 16, 10:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Iberia, Lafayette, Saint Martin, St. Mary	63 min
May 16, 10:28 PM CDT	Special Marine Warning	LCH		62 min
May 16, 10:48 PM CDT	Flash Flood Warning	LCH	Iberia, Saint Martin, St. Mary	3 hr
May 16, 11:10 PM CDT	Severe Thunderstorm Warning	LCH	Saint Martin, St. Mary	35 min
May 16, 11:41 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, St. Mary	34 min
May 16, 11:59 PM CDT	Special Marine Warning	LCH		31 min
May 17, 12:01 AM CDT	Areal Flood Warning	LCH	Acadia, Allen, Evangeline, Lafayette, Saint Landry, Saint Martin	5 hr
May 17, 12:15 AM CDT	Special Weather Statement	LCH	Assumption	30 min
May 16, 7:44 PM CDT	Flash Flood Warning Considerable damage threat	LCH	Hardin, Jasper, Jefferson, Newton, Orange	3 hr

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; radar from the NEXRAD Level II archive.