January 21, 2021 9:13 am Cold Storms vs. Warm Storms: How Do They Impact San Diego County? NBC 7 meteorologist Sheena Parveen breaks down the differences between cold storms and warm storms, and how they impact San Diego County. US & World Videos 2:10 Thousands run in San Diego's annual Rock ‘n' Roll Marathon 2:43 Large voter turnout at San Diego Mexican Consulate in Little Italy for presidential election 2:26 Shark attacks swimmer in Del Mar, beaches closed 2:38 National City family honors teen bicyclist fatally hit by car on way to school 3:13 Spring Valley protesters call on San Diego County to scrap homeless shelter project