Alert archive / Louisiana / Tornado Warnings in 2024

Tornado Warning 107, NWS Shreveport, LA

December 28, 2024Grant Parish, Winn Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Dec 28, 2024, 2:02 PM CST for Grant Parish, Winn Parish, Louisiana. It was in force for 28 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: Dec 28, 2024, 2:02 PM CST (20:02 UTC)
Expired: Dec 28, 2024, 2:30 PM CST
In force: 28 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Grant Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 77 km from the middle of the area, began a volume at 20:05 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
Dec 28, 7:38 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 8.0 hours before the alert went out and 134 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: 1542 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Dec 28, 11:20 AM CST, 2 hours 42 minutes earlier.

Area forecast discussion, Dec 28, 11:20 AM CST, 2 hours 42 minutes before

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In the hours before

Special weather statement, Dec 28, 12:48 PM CST, 1 hour 14 minutes before

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Special weather statement, Dec 28, 12:53 PM CST, 1 hour 9 minutes before

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Special weather statement, Dec 28, 1:01 PM CST, 1 hour 1 minute before

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Local storm report, Dec 28, 1:21 PM CST, 41 minutes before

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Special weather statement, Dec 28, 1:26 PM CST, 36 minutes before

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Special weather statement, Dec 28, 1:54 PM CST, 8 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
Dec 28, 1:27 AM CST	Dense Fog Advisory	SHV	Angelina, Cherokee, Harrison, Nacogdoches, Panola, Rusk and 3 more	8 hr
Dec 28, 5:57 AM CST	Special Weather Statement	SHV	Panola	33 min
Dec 28, 6:27 AM CST	Special Weather Statement	SHV	Harrison	33 min
Dec 28, 6:51 AM CST	Severe Thunderstorm Warning	SHV	Cass	24 min
Dec 28, 7:25 AM CST	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	50 min
Dec 28, 7:29 AM CST	Special Weather Statement	SHV	Bowie	46 min
Dec 28, 7:41 AM CST	Severe Thunderstorm Warning	SHV	Panola	49 min
Dec 28, 7:47 AM CST	Special Weather Statement	SHV	Camp, Franklin, Titus, Upshur, Wood	43 min
Dec 28, 7:56 AM CST	Special Weather Statement	SHV	Bowie	49 min
Dec 28, 8:30 AM CST	Special Weather Statement	SHV	Camp, Franklin, Titus, Upshur, Wood	45 min
Dec 28, 9:04 AM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Camp, Cass, Franklin, Marion, Morris, Titus and 2 more	39 min
Dec 28, 9:31 AM CST	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion, Morris, Upshur	44 min
Dec 28, 10:13 AM CST	Special Weather Statement	SHV	Cass, Harrison, Marion	47 min
Dec 28, 10:14 AM CST	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	46 min
Dec 28, 10:58 AM CST	Special Weather Statement	SHV	Panola	62 min
Dec 28, 11:07 AM CST	Severe Thunderstorm Warning	SHV	Harrison, Panola	53 min
Dec 28, 12:53 PM CST	River Flood Warning	SHV	Anderson, Cherokee, Houston	54 hr
Dec 28, 12:53 PM CST	Special Weather Statement	SHV	Sabine	52 min
Dec 28, 12:54 PM CST	River Flood Warning	SHV	Gregg	46 hr
Dec 28, 1:01 PM CST	Special Weather Statement	SHV	Angelina	44 min
Dec 28, 1:18 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Nacogdoches, San Augustine	42 min
Dec 28, 1:26 PM CST	Special Weather Statement	SHV	Cherokee	49 min
Dec 28, 1:40 PM CST	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Rusk	50 min
Dec 28, 1:54 PM CST	Special Weather Statement	SHV	San Augustine	51 min
Dec 28, 2:05 PM CST	Severe Thunderstorm Warning	SHV	Sabine, San Augustine, Shelby	32 min
Dec 28, 2:24 PM CST	Special Weather Statement	SHV	Angelina, Nacogdoches	66 min
Dec 28, 2:33 PM CST	Severe Thunderstorm Warning	SHV	Sabine, Shelby	30 min
Dec 28, 2:42 PM CST	Special Weather Statement	SHV	San Augustine	48 min
Dec 27, 9:29 PM CST	River Flood Warning	SHV	Webster	10 days
Dec 28, 7:05 AM CST	Special Weather Statement	SHV	Caddo	25 min
Dec 28, 7:38 AM CST	Special Weather Statement	SHV	Grant	52 min
Dec 28, 7:56 AM CST	Severe Thunderstorm Warning	SHV	Grant, LaSalle, Winn	28 min
Dec 28, 8:31 AM CST	Special Weather Statement	SHV	De Soto	44 min
Dec 28, 9:10 AM CST	Special Weather Statement	SHV	Webster	50 min
Dec 28, 9:24 AM CST	Severe Thunderstorm Warning	SHV	Bossier, Claiborne, Webster	25 min
Dec 28, 10:50 AM CST	Special Weather Statement	SHV	Bossier, Caddo, Claiborne, Webster	55 min
Dec 28, 11:01 AM CST	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Claiborne, Webster	44 min
Dec 28, 11:40 AM CST	Special Weather Statement	SHV	Bossier, Claiborne, Webster	50 min
Dec 28, 11:46 AM CST	Severe Thunderstorm Warning	SHV	Bossier, Claiborne, Webster	44 min
Dec 28, 11:51 AM CST	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, De Soto, Red River, Webster	46 min
Dec 28, 12:29 PM CST	Special Weather Statement	SHV	Claiborne, Lincoln, Union	61 min
Dec 28, 12:40 PM CST	Special Weather Statement	SHV	Bienville, De Soto, Red River	65 min
Dec 28, 12:48 PM CST	Special Weather Statement	SHV	Natchitoches	42 min
Dec 28, 1:10 PM CST	Severe Thunderstorm Warning	SHV	Grant, Natchitoches, Winn	65 min
Dec 28, 2:16 PM CST	Severe Thunderstorm Warning	SHV	Grant, Natchitoches, Winn	44 min
Dec 28, 2:34 PM CST	Special Weather Statement	SHV	LaSalle	41 min
Dec 28, 2:45 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, LaSalle	29 min
Dec 28, 2:47 PM CST	Tornado Warning	SHV	Caldwell	29 min
Dec 28, 2:48 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle, Winn	42 min
Dec 28, 2:51 PM CST	Tornado Warning	SHV	Caldwell, LaSalle	24 min
Dec 28, 3:22 PM CST	Special Weather Statement	SHV	LaSalle	23 min
Dec 28, 3:23 PM CST	Special Weather Statement	SHV	Caldwell	37 min
Dec 28, 3:25 PM CST	Special Weather Statement	SHV	Grant, Winn	50 min
Dec 28, 3:46 PM CST	Special Weather Statement	SHV	Natchitoches	29 min
Dec 28, 3:56 PM CST	Special Weather Statement	SHV	LaSalle	49 min
Dec 28, 4:14 PM CST	Special Weather Statement	SHV	Grant	46 min
Dec 28, 6:42 AM CST	Special Weather Statement	SHV	Miller	33 min
Dec 28, 7:13 AM CST	Special Weather Statement	SHV	Lafayette	32 min
Dec 28, 7:22 AM CST	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Miller	38 min
Dec 28, 7:34 AM CST	Special Weather Statement	SHV	Columbia	41 min
Dec 28, 7:54 AM CST	Severe Thunderstorm Warning	SHV	Columbia, Nevada, Union	36 min
Dec 28, 8:08 AM CST	Special Weather Statement	SHV	Columbia, Lafayette	52 min
Dec 28, 8:59 AM CST	Special Weather Statement	SHV	Columbia	46 min
Dec 28, 10:27 AM CST	Areal Flood Advisory	SHV	Union	3 hr

Nearby

Tornado Warnings in Louisiana, 2024 Every tornado warning in 2024 Tornadoes 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.