A severe weather threat is expected for Houston on Saturday, with thunderstorms potentially turning severe. The cold front is moving into warm, humid Gulf air and could trigger thunderstorms across Southeast Texas. The storms could occur around 3pm Saturday, followed by an isolated light rain shower. The severe weather is expected to be widespread, with large hail, heavy rain, and a potential tornado. The next cold front will move through Houston, bringing strong thunderstorms, possibly severe, and potentially lower temperatures.