A de-icing crew works during winter storm Fern on a Southwest Airlines flight at Nashville International Airport in Nashville, Tennessee, US on Jan 24, 2026. (Photo: Reuters/USA Today/Andrew Nelles)

Thousands of flights cancelled as major winter storm moves across the US

Winter storm Fern threatens tens of millions of Americans with blackouts, transportation chaos and bone-chilling cold.

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HOUSTON: A massive winter storm dumped snow and freezing rain on New Mexico and Texas on Saturday (Jan 24) as it spread across the United States towards the northeast, threatening tens of millions of Americans with blackouts, transportation chaos and bone-chilling cold.

Shoppers stripped supermarket shelves as the National Weather Service forecast huge snowfall in some areas and possibly "catastrophic" ice accumulations from freezing rain.

Transportation Secretary Sean Duffy warned that up to 240 million Americans could be affected by Winter Storm Fern. At least 16 states and the US capital, Washington, declared states of emergency.

"Take this storm seriously, folks," the National Weather Service said on X, predicting an "astonishingly long swath" of snowfall from New Mexico to Maine.

About 13,000 flights were cancelled Saturday and Sunday across the US, according to the flight tracking website FlightAware. Sunday's cancellations, which are still growing, already are the most on any single day since the pandemic, according to aviation analytics firm Cirium.

Singapore Airlines also cancelled some flights to and from New York due to the snowstorm. 

Planes move on the tarmac at the Nashville International Airport during a winter storm on Jan 24, 2026, in Nashville. (Photo: AP/George Walker IV)
Snow falls downtown in the lower Broadway area on Jan 24, 2026, in Nashville, Tennessee. A massive winter storm is bringing frigid temperatures, ice, and snow to millions of Americans across the nation. (Photo: Getty Images via AFP/Brett Carlsen)

In Dallas, which has typically mild temperatures in January, freezing rain pelted the Texas city and the mercury plummeted to -6°C.

Houston Mayor John Whitmire urged residents of the country's fourth most populous city to hunker down by late Saturday: "Be where you need to be for the next 72 hours."

Eric Maple, a 56-year-old homeless man, was waiting Sunday for a warming centre to open in Houston.

"We're not used to what's supposed to be coming," he told AFP.

"It disrupts things in Houston, but our city's strong and we've got good people here, so we all try to pull together."

State officials vowed that the Texas power grid was in better shape than five years ago, when it failed during a deadly winter storm and left millions without power.

Nearly 130,000 US customers were without power as of Saturday afternoon, according to tracking site poweroutage.us, with over 50,000 reported in both Texas and neighboring Louisiana.

Snow also hit Oklahoma and Arkansas, where some spots already recorded 15cm on the ground, the NWS said.

After battering the country's southwest and central areas, the storm system was expected to hit the heavily populated mid-Atlantic and northeastern states before a frigid air mass settles in.

"The snow/sleet impacts will linger well into next week with rounds of re-freezing that keeps surfaces icy and dangerous to both drive and walk on for the foreseeable future," the weather service said. 

The US federal government preemptively announced offices would be closed on Monday.

"We will continue to monitor and stay in touch with all States in the path of this storm. Stay Safe, and Stay Warm!" US President Donald Trump, who was riding out the storm in Washington, said on his Truth Social platform. 

Pedestrians cross the street along Broadway during a winter storm on Jan 24, 2026, in Nashville. (Photo: AP/George Walker IV)

POLAR VORTEX

The brutal storm system is the result of a stretched polar vortex, an Arctic region of cold, low-pressure air that normally forms a relatively compact, circular system but sometimes morphs into a more oval shape, sending cold air spilling across North America.

Scientists say the increasing frequency of such disruptions of the polar vortex may be linked to climate change, though the debate is not settled and natural variability plays a role.

But Trump - who scoffs at climate change science and has rolled back green energy policies - questioned how the cold front fit into broader climate shifts.

"WHATEVER HAPPENED TO GLOBAL WARMING???" the Republican leader posted on Truth Social.

The National Weather Service warned that heavy ice could cause "long-duration power outages, extensive tree damage, and extremely dangerous or impassable travel conditions," including in many states less accustomed to intense winter weather.

A parent and kid play in the snow on Palm Street on Jan 24, 2026 in Little Rock, Arkansas. (Photo: AFP/Getty Images/Will Newton)

"FIVE OR SIX MINUTES"

In New York state, Democratic Governor Kathy Hochul warned residents to stay inside amid frigid conditions: "Five or six minutes outside could literally be dangerous for your health."

She stressed precautions like protecting pipes, using heaters safely, and checking on vulnerable neighbours.

Authorities warned of a life-threatening cold that could last a week post-storm, especially in the Northern Plains and Upper Midwest, where wind chill lows were forecast to dip to extremes under -45°C.

Such temperatures can cause frostbite within minutes.

Source: AFP/CNA/fs/zl

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