Thunderstorm Wind — Caddo, Louisiana

2020-01-11 · near Caddo, Caddo, Louisiana

Event narrative

A damage survey confirmed that straight line winds estimated around 80 mph caused sporadic tree and branch damage along with some minor damage to homes in and near Oil City. One large tree was uprooted onto a home in Oil City, killing a 75 year old man inside.

Wider weather episode

An upper level longwave trough emerged out of the Intermountain West and into the Central and Southern Plains during the daytime and evening hours of January 10th. A strong southerly return flow commenced out ahead of the trough during the 8th-9th, allowing for unseasonably warm and humid conditions to advance northward across Southern Oklahoma, much of Central and Eastern Texas, as well as Louisiana, Arkansas, and the Lower Mississippi Valley. Meanwhile, an intensifying surface low pressure system and associated dry line developed along the Red River of North Texas into Southern Oklahoma during the afternoon hours, which spread east northeast across the Ark-La-Tex during the early morning hours on January 11th. With afternoon temperatures climbing into the mid 70s ahead of this trough, moderate instability developed across the broad warm sector, with very strong wind shear in place as large scale forcing increased ahead of the trough axis across East Texas, Southeast Oklahoma, Southwest Arkansas, and North Louisiana. Thus, an axis of strong to severe showers and thunderstorms developed during the evening hours across Southeast Oklahoma, adjacent sections of Southwest Arkansas and East Texas, which advanced east into North Louisiana during the early morning hours of the 11th. Widespread damaging winds downed trees and power lines across much of Northwest and Northcentral Louisiana, with even a long track tornado developing along the line of severe thunderstorms across Central Bossier, Southern Webster, and Southern Claiborne Parishes. Another isolated tornado touched down in Western Union Parish, before these storms exited the region shortly before daybreak on the 11th. Unfortunately, these storms resulted in four fatalities across Northwest Louisiana, three of which occurred from the Haughton tornado.

View location on OpenStreetMap → (32.7475, -93.9719)

Source: NOAA Storm Events Database, event_id 866671. Narrative written by the NWS forecast office that issued the report.