[citation needed] Another storm struck on February 4, with the National Weather Service categorizing it as "potentially life-threatening", and forcing Los Angeles into a state of emergency.

Additionally, portions of the San Bernardino Mountains' foothills were expected to receive substantial rainfall, with estimates ranging from 10 to 12 inches (250 to 300 mm).

[19] Downtown Los Angeles had received 7.03 inches (179 mm) of rain in two days from February 4–5 making it the second wettest two-day span in the city's history.

[22][18] Two tornado warnings would be issued for portions of San Diego County by the National Weather Service due to a severe thunderstorm produced by the storm complex, although no damage would be caused.

[20] Following 1.66 in (42 mm) of rain in Death Valley in 72 hours, California State Route 190 was closed and the park experienced a setback in the recovery from Hurricane Hilary.

Landslides and fallen trees due to the heavy rain and high wind gusts destroyed and damaged many homes and closed roads throughout California.

Bel-Air had a peak 24-hour rainfall of 12.42 inches (315 mm) which equates to a 380-year return interval (0.3%).Los Angeles had been incorporating elements of a stormwater harvesting design to retain the rainwater.