Hurricane Hilary expected to bring heavy rain to the U.S. Southwest: Live Updates

Heavy rainfall, flash flooding possible across parts of Southwest

“Monsoonal moisture” along with tropical moisture connected with Hurricane Hilary are expected to increase thunderstorm coverage across parts of the Southwest today, with the possibility of heavy rainfall and flash flooding, forecasters said.

As Hilary continues to move north in the eastern Pacific near Baja California, the threat of heavy rainfall and flash flooding was likely to increase on Saturday, especially for parts of Southern California, western Arizona, and southern Nevada, the National Weather Service said in an early Friday update.

With an increase in cloud cover, “temperatures will return to more seasonal values today before dropping below normal across much of Southern California, western Arizona, and the Great Basin over the weekend, the weather service said.