A very cold, arctic air mass continued to deepen as it shifted south across Southeast Oklahoma, Southwest Arkansas, Northeast Texas, and North Louisiana on February 14th-15th, ahead of a large upper trough that traversed east across the Southern Plains. Ahead of this trough, ample Pacific moisture was transported northeast across much of Texas, Oklahoma, Arkansas, and the northern half of Louisiana, as large scale forcing increased atop this very cold air mass. Meanwhile, an associated cold front was able to push south off the Southeast Texas and Southern Louisiana coasts, with overrunning of a milder, moist air mass atop the front that streamed north into Deep East Texas and North Louisiana. The combined forcing ahead of the trough and overrunning resulted in a large winter storm affecting across all of the Southern Plains and much of the Lower Mississippi Valley, where areas of heavy snow were observed across much of Central and North Texas, Oklahoma, and Arkansas. Farther south over South and East-Central Texas and North Louisiana, a mix of sleet and freezing rain was observed, before the precipitation transitioned over to snow during the early morning hours of the 15th. Widespread snow and sleet amounts of 2-6 inches fell across much of North Louisiana, with isolated higher amounts up to 8 inches across extreme Northern Caddo and Bossier Parishes.
Listed below are accumulated snow/sleet reports across the various parishes in North Louisiana:
Caddo Parish: Ida: 8.0 inches, Mooringsport: 6.0 inches, 4 S Belcher: 5.0 inches, Shreveport Regional Airport: 3.8 inches, 6 S Shreveport, 3.5 inches, 2 NE Keithvlle, 2.5 inches.
Bossier Parish: 7 NNW Bossier City: 6.0 inches, 3 ESE Plain Dealing: 5.8 inches, 5 N Plain Dealing: 5.0 inches, Red River Research Station: 3.2 inches, 4 S Bossier City: 2.5 inches.
Desoto Parish: Mansfield: 4.9 inches, 5 NE Stonewall: 4.0 inches.
Red River Parish: Coushatta: 4.0 inches.
Bienville Parish: Arcadia: 5.0 inches.
Webster Parish: Springhill: 6.0 inches, Sarepta: 5.0 inches, Minden: 4.0 inches.
Claiborne Parish: 9 SE Shongaloo: 5.0 inches, 1 N Homer: 5.0 inches.
Lincoln Parish: Ruston: 6.0 inches.
Union Parish: 1 W Rocky Branch: 3.1 inches.
Ouachita Parish: Calhoun 4 SSE: 4.0 inches, Monroe 2 WNW: 3.5 inches, West Monroe: 3.3 inches, Monroe Regional Airport: 2.3 inches, 2 SSE Swartz: 2.3 inches.
Caldwell Parish: Columbia Lock and Dam: 3.5 inches.
Jackson Parish: Jonesboro: 4.0 inches.
Winn Parish: No report was available but significant snow did fall.
La Salle Parish: No report was available but significant snow did fall.
Grant Parish: Pollock: 4.5 inches.
Natchitoches Parish: 6 WNW Robeline: 4.0 inches, 2 E Natchitoches: 2.3 inches,  Natchitoches: 2.0 inches.
Sabine Parish: 10 SE Pleasant Hill: 2.0 inches.

The following are sleet reports submitted for various locations across North Louisiana:
Caddo Parish: 6 S Shreveport: 0.4 inches.
Bossier Parish: 2 N Bossier City: 0.3 inches.
Ouachita Parish: Swartz: 0.5 inches.

A freezing rain report of 0.10 inches was submitted at 7 SSW Brownsville-Bawcomville in Ouachita Parish.

Winter Storm in CADDO, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in BOSSIER, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in DE SOTO, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in RED RIVER, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BIENVILLE, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WEBSTER, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in CLAIBORNE, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in LINCOLN, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in JACKSON, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Storm in UNION, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in OUACHITA, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in CALDWELL, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WINN, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Storm in LA SALLE, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Storm in GRANT, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Winter Storm in NATCHITOCHES, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Storm in SABINE, LOUISIANA
From 14-FEB-21 00:00:00 to 15-FEB-21 14:27:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS