Hilary updates: Over 1 foot of rain hits San Bernardino as LA avoids catastrophe
Hilary soaked Southern California, flooding roads and knocking out power.
All tropical storm warnings have been canceled across Southern California as the remnants of Hilary, which no longer meet the threshold of a tropical cyclone, track north.
Once a Category 4 hurricane, Hilary tore through Southern California with historic rainfall on Sunday, flooding roads and knocking out power.
Latest headlines:
Hurricane Hilary downgraded to a category 3 storm
Hurricane Hilary has entered cooler water and is starting to weaken, now a category 3 hurricane with sustained winds reaching 125 mph as it moves north-northwest at 16 mph.
Landfall is expected in Mexico on Sunday. The storm is then expected to be at tropical storm strength as it enters southern California, marking the first tropical storm in Southern California since Nora in 1997, more than 25 years ago.
Catastrophic and life-threatening flooding is expected in Southern California.
Rain from Hilary should reach California later Saturday. Early morning monsoonal showers have lead to flash flooding Saturday morning, but that is not associated with Hilary.
-ABC News' Kenton Gewecke
Nearly 1,000 flights canceled ahead of storm
Airlines have canceled 944 flights so far as Tropical Storm Hilary approaches the West Coast, according to FlightAware.
The majority of the affected airports are in the West.
Southwest Airlines has cancelled 683 flights, the most flights of all U.S. airlines.
The airline has canceled all flights in and out of Palm Springs International Airport until at least Monday.
-ABC News' Sam Sweeny