Flash Flood — Terrebonne, Louisiana

2019-10-26 · near Gray, Terrebonne, Louisiana

Event narrative

Emergency Manager reported numerous roads completely covered in flood waters associated with Post Tropical Storm Olga.

Wider weather episode

Tropical Depression 17 formed in the western Gulf of Mexico early on Friday, October 25th 2019. By late on Friday, October 25th, TD#17 strengthened and organized into a tropical storm and was renamed Olga. By later that evening, Olga transitioned again into a post-tropical storm and crossed portions of coastal southeastern Louisiana. The system spread a large mass of heavy rain and thunderstorms north as it merged with a baroclinic trough digging deep into the southern United States which spawned a two day long event of severe weather across southeastern Louisiana on October 25th and 26th.

View location on OpenStreetMap → (29.7297, -90.7872)

Source: NOAA Storm Events Database, event_id 861726. Narrative written by the NWS forecast office that issued the report.