Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 23, NWS Shreveport, LA

February 11, 2024Grant Parish, LaSalle Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 11, 2024, 3:04 PM CST for Grant Parish, LaSalle Parish, Louisiana. It was in force for 41 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: Feb 11, 2024, 3:04 PM CST (21:04 UTC)
Expired: Feb 11, 2024, 3:45 PM CST
In force: 41 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Grant Parish, LA, LaSalle Parish, LA

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 11, 12:18 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.1 hours before the alert went out and 161 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: 655 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 122 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 11, 11:55 AM CST, 3 hours 9 minutes earlier.

Area forecast discussion, Feb 11, 11:55 AM CST, 3 hours 9 minutes before

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Hazardous weather outlook, Feb 11, 2:40 PM CST, 24 minutes before

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In the hours before

Special weather statement, Feb 11, 11:39 AM CST, 3 hours 25 minutes before

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Local storm report, Feb 11, 11:46 AM CST, 3 hours 18 minutes before

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Special weather statement, Feb 11, 12:38 PM CST, 2 hours 26 minutes before

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Special weather statement, Feb 11, 1:20 PM CST, 1 hour 44 minutes before

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Special weather statement, Feb 11, 1:32 PM CST, 1 hour 32 minutes before

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Special weather statement, Feb 11, 1:45 PM CST, 1 hour 19 minutes before

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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 10, 6:40 PM CST	Special Weather Statement	SHV	Cherokee, Rusk, Smith	65 min
Feb 10, 8:19 PM CST	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	5 days
Feb 10, 8:22 PM CST	River Flood Warning	SHV	Nacogdoches, Rusk	62 hr
Feb 10, 8:26 PM CST	River Flood Warning	SHV	Anderson, Cherokee, Houston	6 days
Feb 10, 11:25 PM CST	Areal Flood Warning	SHV	Angelina, Nacogdoches, Panola, Rusk, San Augustine, Shelby	6 hr
Feb 10, 11:37 PM CST	Special Weather Statement	SHV	Nacogdoches	23 min
Feb 10, 11:49 PM CST	Special Weather Statement	SHV	Nacogdoches	26 min
Feb 11, 12:05 AM CST	Special Weather Statement	SHV	Nacogdoches	25 min
Feb 11, 12:18 AM CST	Special Weather Statement	SHV	Nacogdoches	27 min
Feb 11, 1:07 AM CST	Special Weather Statement	SHV	Rusk	23 min
Feb 11, 1:51 AM CST	Special Weather Statement	SHV	Cherokee	24 min
Feb 11, 2:10 AM CST	Severe Thunderstorm Warning	SHV	Cherokee, Smith	50 min
Feb 11, 2:50 AM CST	Special Weather Statement	SHV	Rusk	25 min
Feb 11, 6:22 AM CST	Severe Thunderstorm Warning	SHV	Cherokee, Smith	38 min
Feb 11, 6:41 AM CST	Special Weather Statement	SHV	Harrison	34 min
Feb 11, 7:00 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Cherokee, Gregg, Rusk, Smith, Upshur	60 min
Feb 11, 7:46 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Gregg, Harrison, Marion, Rusk	59 min
Feb 11, 7:52 AM CST	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Rusk	53 min
Feb 11, 7:58 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Gregg, Harrison, Panola, Rusk	47 min
Feb 11, 8:41 AM CST	Severe Thunderstorm Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	49 min
Feb 11, 8:42 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Harrison, Marion, Panola	48 min
Feb 11, 10:41 AM CST	Severe Thunderstorm Warning	SHV	Sabine	49 min
Feb 11, 11:39 AM CST	Special Weather Statement	SHV	San Augustine	36 min
Feb 11, 12:40 PM CST	Severe Thunderstorm Warning	SHV	Sabine, San Augustine	50 min
Feb 11, 12:50 AM CST	Special Weather Statement	SHV	Red River	25 min
Feb 11, 2:18 AM CST	Special Weather Statement	SHV	Red River	27 min
Feb 11, 2:48 AM CST	Special Weather Statement	SHV	Bienville	27 min
Feb 11, 2:57 AM CST	Special Weather Statement	SHV	Caddo	33 min
Feb 11, 3:23 AM CST	Special Weather Statement	SHV	Caddo	52 min
Feb 11, 3:34 AM CST	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Webster	41 min
Feb 11, 3:41 AM CST	Special Weather Statement	SHV	Lincoln	34 min
Feb 11, 9:22 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Bossier, Caddo, Claiborne, Webster	38 min
Feb 11, 9:31 AM CST	Special Weather Statement	SHV	De Soto	29 min
Feb 11, 9:57 AM CST	Special Weather Statement	SHV	Claiborne	33 min
Feb 11, 10:34 AM CST	Severe Thunderstorm Warning	SHV	Claiborne, Lincoln, Ouachita, Union	41 min
Feb 11, 10:36 AM CST	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Jackson, Lincoln, Natchitoches, Red River	39 min
Feb 11, 11:00 AM CST	Severe Thunderstorm Warning	SHV	Lincoln, Union	45 min
Feb 11, 11:13 AM CST	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Lincoln, Ouachita, Union	47 min
Feb 11, 11:19 AM CST	Special Weather Statement	SHV	Natchitoches	26 min
Feb 11, 12:38 PM CST	Special Weather Statement	SHV	Caldwell	37 min
Feb 11, 1:20 PM CST	Special Weather Statement	SHV	Natchitoches	25 min
Feb 11, 1:32 PM CST	Special Weather Statement	SHV	Sabine	28 min
Feb 11, 1:45 PM CST	Special Weather Statement	SHV	Sabine	30 min
Feb 11, 3:43 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle	47 min
Feb 11, 4:03 PM CST	Special Weather Statement	SHV	Grant	27 min
Feb 11, 4:26 PM CST	Special Weather Statement	SHV	LaSalle	49 min
Feb 11, 4:48 PM CST	Special Weather Statement	SHV	LaSalle	27 min
Feb 11, 4:23 AM CST	Special Weather Statement	SHV	Miller	37 min
Feb 11, 10:28 AM CST	Special Weather Statement	SHV	Union	32 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.