A tropical disturbance in the northern Gulf of Mexico is on a course that approaches Southeast Texas on Friday and brings a risk of urban flooding.

The wet pattern gives way to drying conditions by Sunday as high pressure rebuilds. Sun returns, rain chances taper off, and the stage is set for a significant heat rise. Highs climb into the upper 90s, with humidity bringing the heat index up to 105.

With tropical moisture increasing Friday, expect more widespread showers and storms to build in the next few days with the best chance for heavy rain along the SE Texas Gulf coast.