Most cancellations are at Denver International Airport, where on Wednesday due to the icy conditions and extremely poor visibility due to the fierce winter storm, all the runways were closed. The airport tweeted. The roads around the airport were blocked or blocked by traffic accidents for much of the day.
The airport staff distributed blankets to accommodate the many overnight passengers.
"For the passengers who come to us overnight, we want you to feel as comfortable as possible, please visit the customer service booths at Concourses A, B or Baggage Claim 9 in the terminal and get a blanket," the airport wrote Wednesday.
The stormy storm will move east, calling the "National Meteorological Service" a "Great Plains cyclone of historical proportions".
A bomb cyclone occurs when a rapid pressure drop occurs with a decrease of at least 24 millibars – a measure of air pressure – over 24 hours. This storm has dropped 33 millibars from Tuesday to Wednesday.
From blizzards to tornadoes
As the storm moves in the US, a mix of thunderstorms is expected.
Colorado blizzard conditions have caused blizzards in Iowa, Illinois and Missouri, mostly along the Mississippi River.
It has also triggered strong winds in several states. Winds of hurricane strength were felt from Colorado all the way to Amarillo, Texas.
Thursday morning winds of 50 to 70 mph are expected in Colorado, New Mexico, Texas and Oklahoma, said CNN meteorologist Monica Garrett. In some areas gusts can reach up to 90 km / h.
Heavy storms, flash floods, dense fog and possible tornadoes are also a threat as the storm moves across the central part of the country.
125,000 without electricity
Strong winds have eroded the power 125,000 people, most of them in Colorado and Texas.
Wyoming had closed state offices in Cheyenne, while the governor of South Dakota had ordered the closure of state offices in 39 central and western districts due to the storm.
Deadlocked at the terminal and on the street
Travelers are in trouble both at the airport and on the road.
According to Wellington Fire Protection, 100 vehicles crashed on Interstate 25 near Wellington, Colorado on Wednesday.
According to the fire department's Facebook page, there were no fatalities, but there were minor to severe injuries, and emergency workers came from Colorado and Wyoming.
Around 1,100 motorists were stranded in a storm in Colorado.
The weather in the state was so harsh that law enforcement agencies had to abandon their vehicles and seek shelter themselves instead of responding to major motor vehicle accidents, officials said.
"We're at the point where we're rescuing rescue workers out there," said Elbert County Manager Sam Albrecht.
In Weld County, north of Denver, State Patrol Cpl. Daniel Groves, 52, was hit by a car Wednesday morning when he assisted a driver whose car slipped off Interstate 76, the state police said. Groves, in action since 2007, were declared dead in a hospital.
The high speed at bad driving conditions was examined as a possible factor, said the patrol. No charges were filed.