brennan: jonathan, thank you. there s a tropical storm warning in effect tonight for portions of south texas. a strong system is moving through the gulf of mexico right now. fo more, let s bring in dr. rick knabb from our partners at the weather channel. good evening to you, rick. reporter: margaret, the national hurricane center has written advisories now for the first time in a month and a half inspect time it s on potential tropical psyche loan four, and we ve got tropical storm warnings up for northeastern mexico and port mansfield, texas. that s because we re expecting this to become a tropical storm and make landfall, perhaps in northeastern mexico, late on saturday night, and this will bring strong winds and some moisture into south texas. and this will contribute to flooding farther to the north, well into next week. and look at the monsoon in the southwest, which is juiced up by a previous tropical system, and then this one will be becoming northward. and over the next few