8 miles, 33 degrees: Map shows most drastic Bay Area heat differences

Jackets at Ocean Beach, shorts in the Mission. San Francisco residents are used to dramatic variations in weather across the city, but the heat wave currently sweeping California is putting the whole Bay Area’s “microclimates” on prominent display. A map of real-time temperature readings, compiled by the National Weather Service from citizen stations and official sources like PG&E and the National Interagency Fire Center, shows how California’s heat wave has driven scorching temperatures to within a short drive or train ride from the still fairly chilly Pacific Coast. The shore...