Jan 30, 2019

In photos: Boiling water freezes, train tracks lit on fire in severe cold

In New York City on Wednesday. Photo: Scott Olson via Getty Images

Temperatures overnight sank into the negative double digits in nearly a dozen states, with the polar vortex descending on the Midwest and threatening to break all-time cold records.

The big picture: Mail deliveries have been suspended, schools and businesses closed, and Midwesterners warned that the frigid cold is not to be trifled with. Even so, some brave souls have ventured outside to test out the temperatures.

A bicyclist in southwest Minneapolis in below-freezing temperatures. Photo: Kerem Yucel/AFP via Getty Images
Steam rises above the North Branch Chicago River as temperatures dropped to minus 22°F. Photo: Joshua Lott/AFP via Getty Images

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Fear of coronavirus pandemic escalates

Photo: Abdulgani Basheer/AFP/Getty Images

In the blink of an eye, we've entered a new phase on the coronavirus.

The big picture: Italy, Iran and South Korea are at "decisive" points in their responses, the World Health Organization said on Thursday.

Stocks fall 4% as sell-off worsens

A trader on the floor of the New York Stock Exchange. Photo: Johannes Eisele/AFP via Getty Images

Stocks fell more than 4% on Thursday, extending the market’s worst week since the financial crisis in 2008 following a spike in coronavirus cases around the world.

The big picture: All three indices are in correction, down over 10% from recent record-highs, amid a global market rout. It's the S&P 500's quickest decline into correction territory in the index's history, per Deutsche Bank.

Coronavirus updates: California monitors 8,400 potential cases

Data: The Center for Systems Science and Engineering at Johns Hopkins, the CDC, and China's Health Ministry. Note: China numbers are for the mainland only and U.S. numbers include repatriated citizens.

33 people in California have tested positive for the coronavirus, and health officials are monitoring 8,400 people who have recently returned from "points of concern," Gov. Gavin Newsom said Thursday.

The big picture: COVID-19 has killed more than 2,800 people and infected over 82,000 others in some 50 countries and territories. The novel coronavirus is now affecting every continent but Antarctica, and the WHO said Wednesday the number of new cases reported outside China has exceeded those inside the country for the first time.

Go deeperArrowUpdated 2 hours ago - Health