Alert archive / Louisiana / Flash Flood Warnings in 2023

Flash Flood Warning 38, NWS Lake Charles, LA

December 1, 20236 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood warning at Dec 1, 2023, 1:34 AM CST for 6 parishes in Louisiana. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 1, 2023, 1:34 AM CST (07:34 UTC)
Expired: Dec 1, 2023, 3:50 AM CST
In force: 2 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

Counties Acadia Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vermilion Parish, LA

The radar

The Lake Charles radar (KLCH), 98 km from the middle of the area, began a volume at 07:33 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 00:00Z, 7.6 hours before the alert went out and 97 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 653 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Nov 30, 11:47 PM CST, 1 hour 47 minutes earlier.

Area forecast discussion, Nov 30, 11:47 PM CST, 1 hour 47 minutes before

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In the hours before

Special weather statement, Nov 30, 11:18 PM CST, 2 hours 16 minutes before

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Special weather statement, Nov 30, 11:56 PM CST, 1 hour 38 minutes before

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Special weather statement, Dec 1, 12:01 AM CST, 1 hour 33 minutes before

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Special weather statement, Dec 1, 12:51 AM CST, 43 minutes before

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Special weather statement, Dec 1, 1:01 AM CST, 33 minutes before

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Special weather statement, Dec 1, 1:19 AM CST, 15 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
Nov 30, 6:20 PM CST	Special Weather Statement	LCH	Calcasieu	25 min
Nov 30, 6:53 PM CST	Special Marine Warning	LCH		67 min
Nov 30, 8:03 PM CST	Severe Thunderstorm Warning	LCH	Cameron	42 min
Nov 30, 8:16 PM CST	Special Marine Warning	LCH		59 min
Nov 30, 8:44 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron, Jefferson Davis	61 min
Nov 30, 9:31 PM CST	Flash Flood Warning	LCH	Calcasieu, Cameron, Jefferson Davis	3 hr
Nov 30, 9:34 PM CST	Special Marine Warning	LCH		56 min
Nov 30, 9:38 PM CST	Special Weather Statement	LCH	Cameron	52 min
Nov 30, 9:45 PM CST	Special Weather Statement	LCH	Jefferson Davis	45 min
Nov 30, 10:06 PM CST	Special Marine Warning	LCH		24 min
Nov 30, 10:21 PM CST	Special Weather Statement	LCH	Acadia	54 min
Nov 30, 10:25 PM CST	Special Weather Statement	LCH	Cameron	50 min
Nov 30, 10:26 PM CST	Special Marine Warning	LCH		64 min
Nov 30, 10:53 PM CST	Special Marine Warning	LCH		67 min
Nov 30, 11:16 PM CST	Special Weather Statement	LCH	Cameron	44 min
Nov 30, 11:18 PM CST	Special Weather Statement	LCH	Lafayette	42 min
Nov 30, 11:56 PM CST	Special Weather Statement	LCH	Vermilion	64 min
Dec 1, 12:01 AM CST	Special Weather Statement	LCH	Acadia	59 min
Dec 1, 12:51 AM CST	Special Weather Statement	LCH	Lafayette	39 min
Dec 1, 1:01 AM CST	Special Weather Statement	LCH	Vermilion	44 min
Dec 1, 1:19 AM CST	Special Weather Statement	LCH	Saint Martin	41 min
Dec 1, 1:46 AM CST	Special Weather Statement	LCH	Vermilion	44 min
Dec 1, 1:48 AM CST	Special Marine Warning	LCH		27 min
Dec 1, 2:15 AM CST	Special Weather Statement	LCH	Lafayette	30 min
Dec 1, 2:51 AM CST	Special Weather Statement	LCH	Lafayette	39 min
Dec 1, 2:55 AM CST	Severe Thunderstorm Warning	LCH	Iberia, Lafayette, Saint Martin, St. Mary, Vermilion	65 min
Dec 1, 3:59 AM CST	Special Weather Statement	LCH	Saint Martin	31 min
Dec 1, 4:06 AM CST	Special Weather Statement	LCH	Vermilion	24 min
Dec 1, 4:31 AM CST	Special Weather Statement	LCH	Saint Martin	44 min
Dec 1, 4:37 AM CST	Special Marine Warning	LCH		68 min
Dec 1, 5:11 AM CST	Special Weather Statement	LCH	Saint Martin	34 min
Dec 1, 1:31 PM CST	River Flood Warning	LCH	Lafayette, Vermilion	21 hr
Dec 1, 1:31 PM CST	River Flood Warning	LCH	Calcasieu	5 days
Dec 1, 1:51 PM CST	Flood Watch	LCH	Acadia, Iberia, Jefferson Davis, Lafayette, Saint Martin, St. Mary and 1 more	19 hr
Dec 1, 5:26 PM CST	Special Marine Warning	LCH		64 min
Nov 30, 6:19 PM CST	Special Weather Statement	LCH	Jefferson, Orange	41 min
Nov 30, 6:59 PM CST	Flash Flood Warning	LCH	Jefferson	3 hr
Nov 30, 7:21 PM CST	Special Weather Statement	LCH	Jefferson	39 min
Nov 30, 7:45 PM CST	Flash Flood Warning	LCH	Jefferson	2 hr
Nov 30, 11:04 PM CST	River Flood Warning	LCH	Hardin, Jasper, Jefferson, Orange	12 hr

Nearby

Flash Flood Warnings in Louisiana, 2023 Every flash flood 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.