San Diego County 6 hours ago Desert heat can make crossing deadly for migrants in San Diego Activists are warning about the possible need for migrant rescues as temperatures in San Diego County mountains are set to rise, reports NBC 7 and Telemundo 20’s Tania Luviano. US & World Videos 1:34 Sea lion attacks swimmer at Mission Beach, San Diego lifeguards say 3:06 She died on operating table. Now, her South Bay surgeon and nurse head to prison 6:08 Fallbrook company accused of keeping $11.7M owed to customers 2:45 Ramona turns out to support boy whose lemonade stand was stolen 2:12 Clear the drains: 40th annual Coastal Cleanup Day set for Saturday