Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 308, NWS Shreveport, LA

December 26, 20244 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Dec 26, 2024, 7:27 PM CST for 4 parishes in Louisiana. It was in force for 48 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 26, 2024, 7:27 PM CST (01:27 UTC)
Expired: Dec 26, 2024, 8:15 PM CST
In force: 48 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 77 km from the middle of the area, began a volume at 01:31 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 26, 6:09 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.5 hours before the alert went out and 190 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: 289 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 236 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.8

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 Dec 26, 5:33 PM CST, 1 hour 54 minutes earlier.

Area forecast discussion, Dec 26, 5:33 PM CST, 1 hour 54 minutes before

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In the hours before

Special weather statement, Dec 26, 5:22 PM CST, 2 hours 5 minutes before

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Special weather statement, Dec 26, 5:24 PM CST, 2 hours 3 minutes before

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Local storm report, Dec 26, 6:04 PM CST, 1 hour 23 minutes before

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Special weather statement, Dec 26, 6:47 PM CST, 40 minutes before

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Local storm report, Dec 26, 7:07 PM CST, 20 minutes before

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Local storm report, Dec 26, 7:08 PM CST, 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
Dec 26, 9:35 PM CST	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	9 days
Dec 26, 9:36 PM CST	River Flood Warning	SHV	Gregg	24 hr
Dec 26, 9:36 PM CST	River Flood Warning	SHV	Nacogdoches, Rusk	5 days
Dec 26, 6:47 PM CST	Special Weather Statement	SHV	Bienville, Jackson, Lincoln, Red River	43 min
Dec 26, 7:12 PM CST	Tornado Warning	SHV	Bienville, Jackson, Lincoln	48 min
Dec 26, 7:43 PM CST	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Lincoln, Natchitoches, Ouachita, Winn	47 min
Dec 26, 8:16 PM CST	Special Weather Statement	SHV	Natchitoches, Winn	44 min
Dec 26, 9:51 PM CST	Special Weather Statement	SHV	LaSalle	24 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.