Today will be warm and humid with a southeast wind of 10 to 15 mph. High temperatures will be in the upper 70s. Disturbances moving through the upper-level flow will bring a slight chance of showers and thunderstorms after midnight. There is a slight risk some storms could be severe Wednesday. A stronger upper-level low pressure system will move across the west coast Wednesday morning and enter Texas Thursday. This system will bring a greater chance of severe weather.