The National Weather Service has issued a coastal flood watch that will be in effect from Tuesday evening through Thursday morning.
High tides could come in between 1 and 2 feet above normal, meteorologists said. Persistent easterly winds and a large tidal cycle have already led tides to be 0.5 to 1.5 feet above normal.
Those winds will not let up for several days and could instead increase. The winds, combined with a swell likely developing from Tropical Depression 9, could lead to the inundation of low-lying coastal roadways and other areas not typically subject to flooding.
The latest forecast for Tropical Depression 9 continues to predict little to no impacts on Mississippi or Louisiana aside from the elevated tide levels. The system is still disorganized and moving slowly through the Gulf of Mexico, forecasters said.
There remains uncertainty about the storm’s track and intensity but current models have a slow track to the west, then a slow turn to the west-northwest Monday night and northwest Tuesday, possibly intensifying into a tropical storm. It is expected to curve north and northeast toward Florida by the middle of the week.