The unusual early heat wave is heightening concerns about public safety and marks a test of the state's efforts to combat heat-related deaths in a time of rising temperatures.

SAN FRANCISCO (AP) — San Franciscans bared an unusual amount of skin for this time of year Tuesday, as a city better known for its chilly summers, drizzle and fog is seeing its hottest March in at lea...

The downtown area saw a high of 98 degrees, toppling the March 17, 1914, record of 94, the NWS said.