From the NWS:
Tropical Storm Harvey will slowly weaken as it moves across central Louisiana tonight, heading towards northeast Louisiana by Thursday morning.
The major problem will continue to be the ongoing flooding in southeast Texas and east Texas, as well as the potential for flooding in central Louisiana.
Winds will be gusty tonight in Louisiana. This evening, expect to see wind gusts in the 25 to 35 mph range in central and south central Louisiana this evening, and 20 to 30 mph in southeast Texas and southwest Louisiana. After midnight, winds will gust in the 20 to 25 mph range in southwest, south central, and central Louisiana. Wind gusts will be less than 20 mph in southeast Texas. Expect to see some trees fall down due to the winds and saturated grounds across our entire forecast area.
The storm surge threat has decreased in southeast Texas and Cameron Parish, but there is a lot of standing flood waters that will take days to drain.
The storm surge threat is low for Vermilion, Iberia, and St. Mary Parishes, where water can be 1 to 2 feet above ground level through high tide late tonight due to the strong onshore flow of winds.
We are forecasting an additional one to three inches of rain in parts of east Texas and central Louisiana tonight. Amounts will be less than an inch of rain for southeast Texas, and southwest and south central Louisiana.
Record river flooding is occurring on Pine Island Bayou near Sour Lake and Bevil Oaks, Village Creek near Kountze, and the Neches River near Beaumont. Major flooding is forecast for the Sabine River near Bon Wier, Deweyville, and Orange, Bayou Anacoco near Rosepine, Bundick Creek near Bundick Lake, Calcasieu River near Old Town Bay, Salt Water Barrier, and Sam Houston Jones State Park.
The threat for isolated tornadoes is very low in central Louisiana tonight.