Tropical Storm Hilary Threatens California with Heavy Rain and Swell

Tropical Storm Hilary is expected to strengthen into a hurricane off Mexico's Baja Peninsula before weakening and becoming a remnant low. The remnants of Hilary are likely to bring heavy rain, high surf, coastal flooding, and gusty winds to parts of Southern California and the Desert Southwest this weekend and into early next week. Flash flooding, landslides, and mudslides are possible, especially in areas recently affected by wildfires. The storm's track is influenced by a strong "heat dome" of high pressure in the central U.S. and a trough of low pressure near the West Coast.