A longwave trough shifted east out of the Rockies and into the Central and Southern Plains during the day on March 27th, with the southwest flow ahead of the trough ejecting a series of upper level disturbances northeast across Northeast Texas, Southwest Arkansas, and Northwest Louisiana during the afternoon and evening. Meanwhile, a broad warm and moist sector had spread north across all of the Ark-La-Tex into Eastern Oklahoma and much of Arkansas ahead of this trough, with temperatures warming into the upper 70s and lower 80s areawide. This resulted in moderate instability developing as large scale forcing increased during the late afternoon through the evening hours, resulting in scattered to numerous shower and thunderstorm development across much of these areas. Increasing wind shear late in the afternoon also promoted the development of scattered severe thunderstorms over East Texas, Southwest Arkansas, and Northwest Louisiana, with various reports of damaging winds and large hail received. However, one lone supercell developed over Eastern Anderson County Texas, which produced multiple tornadoes along its track across East Texas, before eventually moving into Northern Desoto and Southeast Caddo Parishes in Northwest Louisiana. These storms eventually organized along a broken line as it pushed into North Louisiana, ahead of a cold front that shifted southeast into the area through the early morning hours of the 28th.

Tornado in DE SOTO, LOUISIANA
From 27-MAR-21 19:22:00 to 27-MAR-21 19:40:00 (CST-6)
Location: KICKAPOO
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado with estimated maximum winds near 105 mph touched down in the North Desoto Estates subdivision in Stonewall, where two homes sustained moderate roof damage. The tornado continued northeast while crossing Highway 171 just north of the North Desoto Elementary/Middle/High School campus, where it crossed Ann Francis Drive. At this location, an attached garage of a home was completely destroyed after the tornadic winds compromised the garage door, removed the roof, and caused the collapse of the exterior brick walls, which were lightly mortared to the foundation. The roof was lifted nearly 30 feet into the air and thrown over a set of trees and into a field to the northeast. The remainder of the home was left relatively undamaged. The tornado continued east-northeast over open country snapping and uprooting numerous trees. It turned more to the northeast after crossing Interstate 49 and produced more consistent tree damage along Rodeo Drive just north of Stonewall-Frierson Road. Roofing was also peeled back from a small outbuilding at the north end of Rodeo Drive. The tornado continued to track northeast across a heavily wooded area before crossing the extreme southeast sections of Wallace Lake into extreme Southeast Caddo Parish.

Thunderstorm Wind in CADDO, LOUISIANA
From 27-MAR-21 19:16:00 to 27-MAR-21 19:16:00 (CST-6)
Location: CADDO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down on Belcher Oil City Road.

Thunderstorm Wind in CADDO, LOUISIANA
From 27-MAR-21 21:52:00 to 27-MAR-21 21:52:00 (CST-6)
Location: METCALF
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down completely blocking Buncombe Road at Woolworth Road.

Hail in BOSSIER, LOUISIANA
From 27-MAR-21 22:17:00 to 27-MAR-21 22:17:00 (CST-6)
Location: BODCAU
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail fell just southwest of the Eastwood community. Report from mPING.

Hail in BOSSIER, LOUISIANA
From 27-MAR-21 22:31:00 to 27-MAR-21 22:31:00 (CST-6)
Location: HAUGHTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter and slightly larger size hail fell in Haughton.

Thunderstorm Wind in CADDO, LOUISIANA
From 27-MAR-21 19:15:00 to 27-MAR-21 19:15:00 (CST-6)
Location: CADDO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines were downed just north of Oil City.

Tornado in CADDO, LOUISIANA
From 27-MAR-21 19:40:00 to 27-MAR-21 19:41:00 (CST-6)
Location: NORTON
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is a continuation of the Northern Desoto Parish tornado. This EF1 tornado, which had weakened slightly with estimated maximum winds near 90 mph, tracked across the extreme southeast sections of Wallace Lake over Wallace Lake Dam where additional hardwood and softwood trees were snapped and uprooted, with minor roof damage occurring to a home along Ellerbe Road. The tornado lifted in a pecan orchard shortly after crossing Ellerbe Road.

Tornado in CADDO, LOUISIANA
From 27-MAR-21 19:11:00 to 27-MAR-21 19:13:00 (CST-6)
Location: FOUR FORKS
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This is a continuation of the Northwest Desoto Parish EF1 tornado northwest of Keachi. This tornado, with estimated maximum winds near 90 mph, continued to track northeast along the Caddo/Desoto Parish line across an open field just south of Majestic Road, before lifting in a heavily wooded area just beyond the triple intersection of Majestic Road, Pluto Road, and Keatchie-Marshall Road. The damage consisted entirely of snapped and uprooted trees. During the survey, it was found that tree damage was found on both the Caddo and Desoto Parish sides of the parish line. The end point was determined to be in Caddo Parish as the damage indicators depicted stronger winds on the Caddo Parish side of the parish line on Keatchie-Marshall Road.

Tornado in DE SOTO, LOUISIANA
From 27-MAR-21 19:08:00 to 27-MAR-21 19:11:00 (CST-6)
Location: KOLTER
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado with estimated maximum winds near 90 mph touched down on Holmes Road between Highway 168 and Highway 172, and tracked northeast across a heavily wooded area into extreme Southwest Caddo Parish northwest of Keachi near the end of Majestic Road. The damage consisted entirely of snapped and uprooted trees.