SACRAMENTO, Calif. (AP) – A staggering rise in coronavirus cases could overwhelm California’s health system within weeks. Gov. Gavin Newsom is warning that “drastic” action such as a widespread stay-at-home order may be needed to combat the threat. Newsom on Monday said “red flags are flying.” Hospitalizations from COVID-19 have increased nearly 90% and officials say they could triple by Christmas, overwhelming intensive care units. Public health officials say people who ignored safety measures to gather for Thanksgiving could lead to a massive surge in cases by Christmas. Authorities say about 12% of those who are infected could wind up in the hospital.