Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 199, NWS Lake Charles, LA

September 7, 2023Iberia Parish, Saint Martin Parish, St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Sep 7, 2023, 8:50 PM CDT for Iberia Parish, Saint Martin Parish, St. Mary Parish, Louisiana. It was in force for 55 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: Sep 7, 2023, 8:50 PM CDT (01:50 UTC)
Expired: Sep 7, 2023, 9:45 PM CDT
In force: 55 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.8 hours before the alert went out and 195 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: 282 J/kg
Mixed-layer CIN: -218 J/kg
Mixed-layer LCL: 1751 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -90 m²/s²
0-3 km storm-relative helicity: -26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 7, 7:10 PM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, Sep 7, 7:10 PM CDT, 1 hour 40 minutes before

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Hazardous weather outlook, Sep 7, 3:37 PM CDT, 5 hours 13 minutes before

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In the hours before

Special weather statement, Sep 7, 5:34 PM CDT, 3 hours 16 minutes before

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Local storm report, Sep 7, 6:11 PM CDT, 2 hours 39 minutes before

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Special weather statement, Sep 7, 7:14 PM CDT, 1 hour 36 minutes before

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Special weather statement, Sep 7, 7:41 PM CDT, 1 hour 9 minutes before

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Local storm report, Sep 7, 8:02 PM CDT, 48 minutes before

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Local storm report, Sep 7, 8:07 PM CDT, 43 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
Sep 7, 7:14 PM CDT	Special Weather Statement	LCH	Avoyelles	31 min
Sep 7, 7:15 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Saint Martin	60 min
Sep 7, 7:19 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Lafayette, Saint Martin	30 min
Sep 7, 7:20 PM CDT	Severe Thunderstorm Warning	LCH	Lafayette, Saint Landry, Saint Martin	55 min
Sep 7, 7:31 PM CDT	Severe Thunderstorm Warning	LCH	St. Mary	59 min
Sep 7, 7:41 PM CDT	Special Weather Statement	LCH	Saint Landry	34 min
Sep 7, 7:45 PM CDT	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	30 min
Sep 7, 8:04 PM CDT	Special Marine Warning	LCH		86 min
Sep 7, 8:05 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Lafayette, Saint Landry	55 min
Sep 7, 8:28 PM CDT	Severe Thunderstorm Warning	LCH	Saint Martin, St. Mary	62 min
Sep 7, 8:32 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Lafayette, Saint Landry, Saint Martin	38 min
Sep 7, 8:39 PM CDT	Special Marine Warning	LCH		66 min
Sep 7, 9:11 PM CDT	Special Weather Statement	LCH	Lafayette	34 min
Sep 7, 9:42 PM CDT	Special Weather Statement	LCH	Vermilion	33 min
Sep 7, 9:43 PM CDT	Special Marine Warning	LCH		62 min
Sep 7, 9:58 PM CDT	Special Marine Warning	LCH		62 min
Sep 7, 10:50 PM CDT	Special Weather Statement	LCH	Vermilion	25 min
Sep 8, 11:52 AM CDT	Severe Thunderstorm Warning	LCH	Vernon	68 min
Sep 8, 12:08 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	67 min
Sep 8, 12:37 PM CDT	Severe Thunderstorm Warning	LCH	Rapides, Vernon	23 min
Sep 8, 12:44 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Beauregard, Evangeline, Rapides	61 min
Sep 8, 12:47 PM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	58 min
Sep 8, 1:03 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard	57 min
Sep 8, 1:14 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Calcasieu, Jefferson Davis	61 min
Sep 8, 1:27 PM CDT	Severe Thunderstorm Warning	LCH	Lafayette, Saint Martin	63 min
Sep 8, 1:50 PM CDT	Special Marine Warning	LCH		55 min
Sep 8, 1:54 PM CDT	Severe Thunderstorm Warning	LCH	Cameron, Vermilion	66 min
Sep 8, 1:56 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, St. Mary	64 min
Sep 8, 1:58 PM CDT	Special Marine Warning	LCH		62 min
Sep 8, 2:00 PM CDT	Special Marine Warning	LCH		60 min
Sep 8, 2:11 PM CDT	Special Marine Warning	LCH		2 hr
Sep 8, 2:17 PM CDT	Special Marine Warning	LCH		118 min
Sep 8, 2:19 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Jefferson Davis	26 min
Sep 8, 2:51 PM CDT	Special Marine Warning	LCH		114 min
Sep 8, 2:56 PM CDT	Special Marine Warning	LCH		2 hr
Sep 8, 3:07 PM CDT	Special Marine Warning	LCH		23 min
Sep 8, 5:34 PM CDT	Special Marine Warning	LCH		56 min
Sep 8, 5:38 PM CDT	Special Weather Statement	LCH	Avoyelles	37 min
Sep 8, 6:22 PM CDT	Special Marine Warning	LCH		53 min
Sep 8, 1:20 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	55 min
Sep 8, 1:41 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Newton, Orange	64 min
Sep 8, 2:07 PM CDT	Severe Thunderstorm Warning	LCH	Jefferson	53 min
Sep 8, 3:14 PM CDT	Special Weather Statement	LCH	Jefferson	31 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023 Every severe thunderstorm warning in 2023

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.