Coastal Flood — Lower Jefferson, Louisiana

2017-04-30 · Lower Jefferson, Louisiana

Event narrative

Strong onshore flow caused tides to rise approximately 1.5 feet above normal resulting in impassible roads during high tide on Grand Isle.

Wider weather episode

A squall line with embedded severe thunderstorms moved through the area ahead of a cold front. Strong onshore flow ahead of the front also led to coastal flooding.

Source: NOAA Storm Events Database, event_id 696538. Narrative written by the NWS forecast office that issued the report.