California: Hurricane Hilary brought record-breaking rainfall to Southern California on August 20-21, 2023, flooding roads and causing mudslides and rock slides as it barreled north.
The storm was first a Category 4 hurricane, but it weakened to a tropical storm before making landfall in Baja California, Mexico. However, it still dumped more than half the average annual rain on some desert and mountain areas in Southern California, including Palm Springs, which saw nearly 3 inches of rain by Sunday evening.
The storm caused widespread flooding, with some roads impassable and cars stranded. Mudslides and rock slides also occurred, closing several highways and forcing evacuations in some areas.
There were no reports of deaths or serious injuries, but the storm caused significant damage to property. The Red Cross opened shelters for people who had been displaced by the flooding.
The storm is expected to continue to move north, bringing more rain and potential flooding to Arizona, Nevada, and Utah.
The National Weather Service has issued flood warnings and watches for these states, and residents are urged to be prepared for the possibility of flooding.
This is the first tropical storm to hit Southern California in 84 years. It is a reminder of the potential for these storms to cause widespread damage, even in areas that are not typically prone to flooding.
Residents of Southern California and the Southwest should be prepared for the possibility of flooding and other hazards associated with tropical storms. They should have a plan in place in case they need to evacuate their homes, and they should stay informed about the latest weather forecasts.