Tropical Storm Nicholas, in the western Gulf of Mexico, will be a major rainfall flood threat to parts of the Texas and Louisiana coasts, in addition to strong wind gusts and storm surge.
Nicholas is centered over 200 miles south of Port O'Connor, Texas. It's helping to produce widespread showers and thunderstorms throughout a broad area of the western Gulf of Mexico right now. Some bands of rain associated with Nicholas have already spread into the Texas and Louisiana coasts.
Tropical storm warnings have been issued along the coast of Texas from the mouth of the Rio Grande River to High Island, as well as some inland counties near the Texas coast and the southeast Houston metro area. This means tropical-storm-force winds (39+ mph) are expected in these areas beginning as soon as Monday morning farther south and Monday night farther north.
A hurricane watch is also now in effect for a part of the middle Texas coast, from Port Aransas to Freeport. Hurricane conditions could occur in this area as early as this afternoon.
A tropical storm watch is in effect on the Texas coast from east of High Island to Sabine Pass, and also for some inland counties including Harris County and the city of Houston. These areas could see tropical-storm-force winds by late Monday night or early Tuesday.