A longwave trough dug south through the Plains and Mississippi Valley on March 10th-11th, which ushered in a strong cold front south into Southeast Oklahoma, Southwest Arkansas, East Texas, and North Louisiana on the 11th. Pacific moisture increased beneath and ahead of this trough and approaching cold front, with large scale forcing also increasing ahead of these features to generate areas of light snow across portions of North Louisiana during the evening hours. Temperatures remained near or slightly above freezing with the frontal passage as the snow developed over the area, with snowfall rates high enough to allow for light accumulations across much of the area through the evening. Localized higher amounts of 2 inches was recorded in a couple of locations in Southeast Union Parish just west of Sterlington.
The following are snow totals at various locations across portions of North Louisiana:
Caddo Parish: Although no official reports were received, based on surrounding county/parish observations, 0.2 - 0.5 inches were estimated over the northern sections of the parish north of Shreveport.
Bossier Parish: 5 S of Benton: 0.3 inches
Webster Parish: 1 NW Springhill: 1.5 inches, 2 E of Minden, 1.3 inches, and 1 NNE of Doyline, 1.0 inches.
Red River Parish: 3 SW of Hall Summit: 0.5 inches.
Bienville Parish: Jamestown, 1.0 inches, and Arcadia, 1.0 inches.
Lincoln Parish: Ruston: 1.8 inches, 3 NW of Choudrant, 1.4 inches, 1 NNW of Simsboro, 1.0 inches, and Dubach, 1.0 inches.
Claiborne Parish: Homer, 1.5 inches, Athens, 1.3 inches, 9 NNE of Lisbon, 1.3 inches, 6 SSW of Homer, 0.8 inches.
Union Parish: 9 W of Sterlington, 2.1 inches, 6 NW of Sterlington, 2.0 inches, Spearsville, 1.5 inches, Bernice, 1.5 inches, and 9 W of Sterlington, 1.1 inches.
Ouachita Parish: 4 SSE of Sterlington, 1.0 inches, 2 SSW of Swartz, 0.5 inches, Monroe Regional Airport, 0.5 inches, and 2 ENE of West Monroe, 0.1 inches.
Jackson Parish: 8 NNE of Dodson, 0.7 inches.

Winter Storm in UNION, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Winter Weather in CADDO, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Weather in BOSSIER, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in RED RIVER, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in WEBSTER, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in BIENVILLE, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Weather in CLAIBORNE, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Weather in LINCOLN, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Winter Weather in JACKSON, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Winter Weather in OUACHITA, LOUISIANA
From 11-MAR-22 18:00:00 to 12-MAR-22 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS