Record heat wave to scorch Northern California over holiday weekend

Northern California faces several days of triple-digit temperatures beginning Friday, with some areas potentially reaching 110 degrees.
The hottest temperatures are forecast for the Central Valley and inland areas, while coastal regions will remain 10 to 30 degrees cooler.
The heat wave comes as an atmospheric ridge builds over the West Coast, pushing hot, dry air into the region.
The National Weather Service has issued warnings advising people to limit outdoor activities, stay properly hydrated and remain indoors during the heat of the day.
The scorching temperatures threaten to overwhelm the state's power grid, and health officials caution the extreme heat can be deadly if the proper precautions aren't taken.