Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 92, NWS Lake Charles, LA

May 10, 2023Calcasieu Parish, Cameron Parish, Louisiana; Jefferson County, Orange County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at May 10, 2023, 5:12 PM CDT for Calcasieu Parish, Cameron Parish, Louisiana; Jefferson County, Orange County, Texas. It was in force for 33 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 10, 2023, 5:12 PM CDT (22:12 UTC)
Expired: May 10, 2023, 5:45 PM CDT
In force: 33 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Calcasieu Parish, LA, Cameron Parish, LA, Jefferson County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 44 km from the middle of the area, began a volume at 22:11 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, 10.2 hours before the alert went out and 45 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: 326 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 1029 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 10, 3:38 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, May 10, 3:38 PM CDT, 1 hour 34 minutes before

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Hazardous weather outlook, May 10, 3:36 PM CDT, 1 hour 36 minutes before

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In the hours before

Special weather statement, May 10, 3:25 PM CDT, 1 hour 47 minutes before

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Special weather statement, May 10, 4:41 PM CDT, 31 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 9, 7:49 PM CDT	Flash Flood Warning	LCH	Calcasieu	3 hr
May 10, 9:48 AM CDT	Special Marine Warning	LCH		42 min
May 10, 11:15 AM CDT	Special Marine Warning	LCH		30 min
May 10, 11:43 AM CDT	Special Marine Warning	LCH		47 min
May 10, 11:59 AM CDT	Tornado Warning	LCH	Cameron	31 min
May 10, 3:25 PM CDT	Special Weather Statement	LCH	Vermilion	35 min
May 10, 5:00 PM CDT	Special Marine Warning	LCH		60 min
May 10, 5:46 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	29 min
May 10, 6:21 PM CDT	Special Weather Statement	LCH	Calcasieu	39 min
May 10, 11:03 AM CDT	Flash Flood Warning	LCH	Jefferson, Orange	117 min
May 10, 4:41 PM CDT	Special Weather Statement	LCH	Jefferson	34 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023 Severe Thunderstorm Warnings in Texas, 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.