Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 43, NWS Lake Charles, LA

April 15, 2023Acadia Parish, Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 15, 2023, 9:21 AM CDT for Acadia Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 24 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 15, 2023, 9:21 AM CDT (14:21 UTC)
Expired: Apr 15, 2023, 9:45 AM CDT
In force: 24 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Acadia Parish, LA, Evangeline Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 96 km from the middle of the area, began a volume at 14:20 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 12:00Z, 2.4 hours before the alert went out and 100 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: 1980 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 758 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 6.4

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 15, 6:35 AM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Apr 15, 6:35 AM CDT, 2 hours 46 minutes before

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Hazardous weather outlook, Apr 15, 4:51 AM CDT, 4 hours 30 minutes before

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In the hours before

Special weather statement, Apr 15, 6:39 AM CDT, 2 hours 42 minutes before

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Special weather statement, Apr 15, 7:38 AM CDT, 1 hour 43 minutes before

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Special weather statement, Apr 15, 8:29 AM CDT, 52 minutes before

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Special weather statement, Apr 15, 9:02 AM CDT, 19 minutes before

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Special weather statement, Apr 15, 9:07 AM CDT, 14 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 15, 7:38 AM CDT	Special Weather Statement	LCH	Beauregard, Calcasieu	52 min
Apr 15, 8:29 AM CDT	Special Weather Statement	LCH	Acadia, Allen, Calcasieu, Cameron, Evangeline, Jefferson Davis	31 min
Apr 15, 8:38 AM CDT	Severe Thunderstorm Warning	LCH	Allen, Beauregard, Rapides, Vernon	9 min
Apr 15, 9:02 AM CDT	Special Weather Statement	LCH	Acadia, Avoyelles, Cameron, Evangeline, Jefferson Davis, Lafayette and 1 more	28 min
Apr 15, 9:07 AM CDT	Special Weather Statement	LCH	Avoyelles	23 min
Apr 15, 9:34 AM CDT	Special Weather Statement	LCH	Avoyelles	26 min
Apr 15, 9:37 AM CDT	River Flood Warning	LCH	Lafayette, Vermilion	33 hr
Apr 15, 9:41 AM CDT	Special Weather Statement	LCH	Saint Landry	34 min
Apr 15, 9:43 AM CDT	Special Weather Statement	LCH	Cameron	32 min
Apr 15, 9:45 AM CDT	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	30 min
Apr 15, 9:49 AM CDT	Severe Thunderstorm Warning	LCH	Acadia, Lafayette, Saint Landry, Saint Martin	15 min
Apr 15, 10:01 AM CDT	Special Weather Statement	LCH	Avoyelles	29 min
Apr 15, 10:13 AM CDT	Special Weather Statement	LCH	Saint Landry	32 min
Apr 15, 10:15 AM CDT	Special Weather Statement	LCH	Vermilion	30 min
Apr 15, 10:41 AM CDT	Special Weather Statement	LCH	Saint Martin	19 min
Apr 15, 10:44 AM CDT	Special Marine Warning	LCH		31 min
Apr 15, 10:49 AM CDT	Special Weather Statement	LCH	Lafayette	26 min
Apr 15, 11:00 AM CDT	Special Weather Statement	LCH	Saint Martin	30 min
Apr 15, 11:14 AM CDT	Special Marine Warning	LCH		31 min
Apr 15, 2:37 PM CDT	Small Craft Advisory	LCH		25 hr
Apr 15, 6:39 AM CDT	Special Weather Statement	LCH	Hardin	51 min
Apr 15, 5:14 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Tyler	61 min
Apr 15, 5:17 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jefferson, Orange	58 min
Apr 15, 5:48 PM CDT	Severe Thunderstorm Warning	LCH	Hardin	57 min
Apr 15, 6:12 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Jefferson, Orange	48 min
Apr 15, 6:14 PM CDT	Severe Thunderstorm Warning	LCH	Tyler	46 min
Apr 15, 6:49 PM CDT	Special Weather Statement	LCH	Hardin	26 min
Apr 15, 6:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LCH	Jasper, Newton, Tyler	37 min
Apr 15, 6:59 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jefferson, Orange	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; radar from the NEXRAD Level II archive.