Tropical moisture will be moving into Southeast Texas mainly Sunday afternoon through Monday night and will bring round of showers and thunderstorms to the area. Rainfall totals of 2 to 4 inches with locally higher amounts can be expected. The higher totals will probably end up closer to the coast and the lower totals will end up well inland. Run up on the beaches will cause strong rip currents and beach flooding.
A tropical wave in the south central Gulf of Mexico will move toward the Texas coast over the next several days. Currently, the National Hurricane Center has a 20% chance of development through Wednesday. This system should push deep tropical moisture into Southeast Texas Sunday through Tuesday on breezy southeasterly winds. The greatest rain chances will be across the southern portions of the area with the most intense rainfall focused mainly south of the Interstate 10 corridor. Widespread accumulations of 0.75 to 1.50 inches across the northern portions of the area and 2 to 4 inches with higher isolated totals across the south are anticipated. The focus should be on locally heavy rainfall Sunday PM through Monday evening which could lead to street flooding.