Malibu will be under a Red Flag warning starting at 8 p.m. Friday and lasting through 6 p.m. Saturday, with winds predicted to gust as high 70 mph in mountain areas. Humidity is expected to drop rapidly below critical levels Friday night and into Saturday morning. Residents should be cautious of increased fire danger. Malibu is also under a High Surf Advisory, with strong rip currents, and a High Wind Advisory.