EF0 Tornado — St. Tammany, Louisiana

2024-12-27 · near Florenville, St. Tammany, Louisiana

Event narrative

Tornado touched down near the intersection of W Moran Rd and John Keller Dr causing half of a water oak to snap. It moved northeastward causing sporadic tree damage and also caused minor roof damage on the east-facing side of a home on Hwy 41 before lifting near the intersection of Frank Jacken Rd and Onnis Evans Rd. Times estimated by radar. Lack of accessible roads to the southwest limited ability to track any damage beyond current start point toward where the stronger rotational signature showed up. On Hwy 36, the area nearest where the circulation crossed the road was actively being logged, and further SW toward Hwy 434, all damage noted was to dead trees which may or may not have been recent.

Wider weather episode

On December 27, 2024, an EF-0 tornado touched down in rural St. Tammany Parish, Louisiana, around 7:00 AM CST, as a strong upper-level disturbance moved across the central CONUS. A surface low over the Ozarks region, combined with increasing low-level wind shear and modest instability, created a favorable environment for brief tornado development along a prefrontal convergence zone. The tornado, with peak winds of 80 mph, touched down near the intersection of W Moran Road and John Keller Drive, snapping a water oak tree before moving northeast. It caused sporadic tree damage and minor roof damage to a home along Highway 41 before lifting near Frank Jacken Road and Onnis Evans Road. The tornado traveled nearly two miles and lasted about seven minutes. No injuries were reported.

View location on OpenStreetMap → (30.4600, -89.8300)

Source: NOAA Storm Events Database, event_id 1228584. Narrative written by the NWS forecast office that issued the report.