//California will ‘tighten things up’ on coronavirus heading into Fourth, Newsom says

California will ‘tighten things up’ on coronavirus heading into Fourth, Newsom says

<span class="image" data-attrib="Rich Pedroncelli / Associated Press" data-caption="

Gov. Gavin Newsom at a news conference in Sacramento on May 5.

“>Gavin Newsom holding a sign posing for the camera: Gov. Gavin Newsom at a news conference in Sacramento on May 5. © Rich Pedroncelli / Associated Press

Gov. Gavin Newsom at a news conference in Sacramento on May 5.

California health officials are worried about the spread of the coronavirus at family gatherings heading into the Fourth of July weekend, Gov. Gavin Newsom said Tuesday at a news conference where he revealed plans to reinstitute more restrictions on public life this week.

Visiting a motel in Pittsburg that was converted into homeless housing during the coronavirus pandemic, Newsom said he planned to announce efforts Wednesday to “use that dimmer switch that we refer to and begin to toggle back on our stay-home-order and tighten things up.”

“If you’re not going to stay home and you’re not going to wear masks in public, we have to enforce and we will,” he said.

Newsom hinted that the changes would affect counties that have moved to resume indoor activities such as shopping and dining.

“We also have to recognize that the spread, when you’re not at home, in indoor facilities is much more probable than in outdoor settings,” he said.

The coronavirus outbreak in California has been accelerating in recent weeks as the economy has reopened. The state reported 6,367 new cases Monday, Newsom said, one of the highest single-day totals yet. Hospitalizations, patients in intensive care and the rate of positive tests are also are increasing.

State health officials are likely to begin more closely monitoring four additional counties with outbreaks that are growing at a concerning pace, Newsom said. That watch list already includes 19 of California’s 58 counties, encompassing nearly three-quarters of the population.

Over the weekend, Newsom ordered seven counties on the list to close down bars or keep them shuttered if they haven’t reopened, and recommended eight others do the same.

But he said Tuesday that a survey of public health officials identified their top concern as intimate gatherings where “extended and immediate family members, begin to mix and start to take down their guard.” Acknowledging that family gatherings are a tradition for Fourth of July, Newsom said his administration would offer “more aggressive” guidelines this week about celebrations.

“We bent the curve in the state of California once. We will bend the curve again,” Newsom said. “Mark my word. We will crush this pandemic, we will annihilate it. We will get past this.”

Alexei Koseff is a San Francisco Chronicle staff writer. Email: alexei.koseff@sfchronicle.com Twitter: @akoseff