PHOENIX —The remnants of Hurricane Norbert pushed into the desert Southwest and swamped Phoenix with record rainfall for a single day, turning freeways into small lakes and sending rescuers scrambling to get drivers out of inundated cars.

At least two people died in the flooding, including a woman who was swept away in her car by rushing water and became trapped against a bridge. In addition, a 76-year-old woman drowned in floodwaters.

By Monday evening, floodwaters were threatening up to 100 homes in suburban Mesa after retention basins and channels along the U.S. 60 freeway reached or exceeded capacity, allowing water to flow into some neighborhoods, city officials said.

Crews were working to disconnect power to submerged transformers, provide sandbags to threatened homes, and pump water from affected areas. The flooding was caused by heavy thunderstorms and showers associated with Norbert after it was downgraded to a tropical depression.