Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 113, NWS Lake Charles, LA

May 9, 2024Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at May 9, 2024, 11:39 PM CDT for Vernon Parish, Louisiana. It was in force for 51 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 9, 2024, 11:39 PM CDT (04:39 UTC)
Expired: May 10, 2024, 12:30 AM CDT
In force: 51 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 20 km from the middle of the area, began a volume at 04:40 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 9, 8:13 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 4.7 hours before the alert went out and 323 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: 4062 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.2

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 9, 9:25 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, May 9, 9:25 PM CDT, 2 hours 14 minutes before

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In the hours before

Local storm report, May 9, 9:29 PM CDT, 2 hours 10 minutes before

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Local storm report, May 9, 9:59 PM CDT, 1 hour 40 minutes before

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Local storm report, May 9, 10:13 PM CDT, 1 hour 26 minutes before

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Special weather statement, May 9, 10:48 PM CDT, 51 minutes before

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Local storm report, May 9, 11:10 PM CDT, 29 minutes before

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Special weather statement, May 9, 11:28 PM CDT, 11 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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, 11:28 PM CDT	Special Weather Statement	LCH	Vernon	32 min
May 10, 12:37 AM CDT	Special Weather Statement	LCH	Rapides	53 min
May 9, 8:40 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	65 min
May 9, 9:17 PM CDT	Flash Flood Warning	LCH	Jasper, Tyler	3 hr
May 9, 9:44 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	61 min
May 9, 10:43 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton	62 min
May 9, 10:48 PM CDT	Special Weather Statement	LCH	Hardin	42 min

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.