Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 87, NWS Lake Charles, LA

April 27, 2023Saint Martin Parish, St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 27, 2023, 7:34 AM CDT for Saint Martin Parish, St. Mary Parish, Louisiana. It was in force for 26 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: Apr 27, 2023, 7:34 AM CDT (12:34 UTC)
Expired: Apr 27, 2023, 8:00 AM CDT
In force: 26 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 0.6 hours before the alert went out and 182 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: 1731 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 476 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 6.1

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 Apr 27, 6:58 AM CDT, 36 minutes earlier.

Area forecast discussion, Apr 27, 6:58 AM CDT, 36 minutes before

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Hazardous weather outlook, Apr 27, 5:55 AM CDT, 1 hour 39 minutes before

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In the hours before

Special weather statement, Apr 27, 3:12 AM CDT, 4 hours 22 minutes before

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Special weather statement, Apr 27, 3:33 AM CDT, 4 hours 1 minute before

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Special weather statement, Apr 27, 3:36 AM CDT, 3 hours 58 minutes before

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Special weather statement, Apr 27, 4:04 AM CDT, 3 hours 30 minutes before

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Special weather statement, Apr 27, 4:21 AM CDT, 3 hours 13 minutes before

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Special weather statement, Apr 27, 7:28 AM CDT, 6 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
Apr 27, 12:33 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard	27 min
Apr 27, 12:46 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Beauregard, Vernon	29 min
Apr 27, 12:57 AM CDT	Special Weather Statement	LCH	Vernon	33 min
Apr 27, 12:58 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	32 min
Apr 27, 1:00 AM CDT	Special Weather Statement	LCH	Vernon	30 min
Apr 27, 1:14 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	31 min
Apr 27, 1:18 AM CDT	Special Weather Statement	LCH	Vernon	27 min
Apr 27, 1:20 AM CDT	Special Weather Statement	LCH	Calcasieu	25 min
Apr 27, 1:40 AM CDT	Special Weather Statement	LCH	Vernon	35 min
Apr 27, 1:43 AM CDT	Special Weather Statement	LCH	Allen	32 min
Apr 27, 1:58 AM CDT	Special Weather Statement	LCH	Vernon	32 min
Apr 27, 2:02 AM CDT	Special Marine Warning	LCH		26 min
Apr 27, 2:02 AM CDT	Special Weather Statement	LCH	Jefferson Davis	28 min
Apr 27, 2:14 AM CDT	Special Weather Statement	LCH	Allen	31 min
Apr 27, 2:27 AM CDT	Special Weather Statement	LCH	Acadia, Cameron, Jefferson Davis	33 min
Apr 27, 2:30 AM CDT	Special Weather Statement	LCH	Rapides	30 min
Apr 27, 2:31 AM CDT	Special Weather Statement	LCH	Rapides	14 min
Apr 27, 2:39 AM CDT	Special Weather Statement	LCH	Evangeline	36 min
Apr 27, 3:04 AM CDT	Special Weather Statement	LCH	Acadia	26 min
Apr 27, 3:07 AM CDT	Special Weather Statement	LCH	Avoyelles	23 min
Apr 27, 3:08 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Evangeline, Rapides	37 min
Apr 27, 3:12 AM CDT	Special Weather Statement	LCH	Saint Landry	33 min
Apr 27, 3:15 AM CDT	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	30 min
Apr 27, 3:33 AM CDT	Special Weather Statement	LCH	Avoyelles	27 min
Apr 27, 3:36 AM CDT	Special Weather Statement	LCH	Lafayette, Saint Martin	24 min
Apr 27, 3:39 AM CDT	Severe Thunderstorm Warning	LCH	Saint Landry	36 min
Apr 27, 4:04 AM CDT	Special Weather Statement	LCH	Saint Martin	26 min
Apr 27, 4:21 AM CDT	Special Weather Statement	LCH	Saint Martin	24 min
Apr 27, 4:44 AM CDT	Severe Thunderstorm Warning	LCH	Saint Martin	16 min
Apr 27, 5:34 AM CDT	Special Marine Warning	LCH		41 min
Apr 27, 6:18 AM CDT	Special Marine Warning	LCH		27 min
Apr 27, 6:44 AM CDT	Special Marine Warning	LCH		31 min
Apr 27, 6:47 AM CDT	Special Marine Warning	LCH		28 min
Apr 27, 7:06 AM CDT	Special Marine Warning	LCH		24 min
Apr 27, 7:28 AM CDT	Special Weather Statement	LCH	St. Mary	32 min
Apr 27, 8:11 AM CDT	Special Marine Warning	LCH		34 min
Apr 27, 9:11 AM CDT	Special Marine Warning	LCH		64 min
Apr 27, 9:20 AM CDT	Special Marine Warning	LCH		55 min
Apr 26, 11:18 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Tyler	42 min
Apr 26, 11:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Jasper, Tyler	45 min
Apr 26, 11:52 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Tyler	38 min
Apr 27, 12:02 AM CDT	Special Weather Statement	LCH	Hardin	28 min
Apr 27, 12:19 AM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton, Tyler	26 min
Apr 27, 2:47 AM CDT	Special Weather Statement	LCH	Jefferson	28 min
Apr 27, 3:10 AM CDT	Special Weather Statement	LCH	Orange	20 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.