Overview
- The National Weather Service issued a flash flood warning for parts of Los Angeles County at 4:48 p.m. Monday, citing hourly rainfall rates of 0.4 to 0.8 inches and the risk of mudslides and rockslides.
- An NWS flood advisory covered Orange County from 6:49 p.m. to 7:48 p.m. Monday with expectations of minor flooding in low-lying and poor-drainage areas.
- As the system moves into the Mojave Desert, flood watches extend into late Tuesday for areas of California, Arizona and Nevada, with officials cautioning about quick runoff in sensitive basins.
- Earlier Monday, an updated alert flagged gusty showers along the 5 Freeway north of Los Angeles with winds near 40 mph, raising risks of downed limbs and hazardous driving.
- Officials urged residents to avoid flooded roads, prepare sandbags where available, monitor CalTrans for closures, and sign up for local alerts, noting that the most severe hazards can trigger wireless emergency notifications.