Denver snow travel flights cancelled_00000107.jpg
KMGH
Denver snow travel flights cancelled_00000107.jpg
Now playing
00:45
Denver spring snow cancels flights
The Visible Infrared Imaging Radiometer Suite (VIIRS) on NOAA-20 acquired this image of Hurricane Laura at 2:20 a.m. Central Daylight Time on August 26, 2020.
NASA Earth Observatory/Joshua Stevens
The Visible Infrared Imaging Radiometer Suite (VIIRS) on NOAA-20 acquired this image of Hurricane Laura at 2:20 a.m. Central Daylight Time on August 26, 2020.
Now playing
01:13
Another active hurricane season is forecasted with 17 named storms
This picture taken on July 26, 2015 shows a child playing in a fountain on a square to cool himself amid a heatwave in Binzhou, eastern China's Shandong province.   CHINA OUT     AFP PHOTO        (Photo credit should read STR/AFP/Getty Images)
STR/AFP/AFP/Getty Images
This picture taken on July 26, 2015 shows a child playing in a fountain on a square to cool himself amid a heatwave in Binzhou, eastern China's Shandong province. CHINA OUT AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
Now playing
01:14
What NOT to do in a heat wave
Larry Pierson, from the Isle of Palms, S.C., purchases bottled water from the Harris Teeter grocery store on the Isle of Palms in preparation for Hurricane Florence at the Isle of Palms S.C., Monday, Sept. 10, 2018. (AP Photo/Mic Smith)
Mic Smith/AP
Larry Pierson, from the Isle of Palms, S.C., purchases bottled water from the Harris Teeter grocery store on the Isle of Palms in preparation for Hurricane Florence at the Isle of Palms S.C., Monday, Sept. 10, 2018. (AP Photo/Mic Smith)
Now playing
00:57
How to prepare for a hurricane
how hail is formed explainer orig_00000021.jpg
how hail is formed explainer orig_00000021.jpg
Now playing
01:00
How hail is formed
IN SPACE - In this handout photo provided by NASA, Hurricane Patricia is seen from the International Space Station. The hurricane made landfall on the Pacfic coast of Mexico on October 23. (Photo by Scott Kelly/NASA via Getty Images)
NASA
IN SPACE - In this handout photo provided by NASA, Hurricane Patricia is seen from the International Space Station. The hurricane made landfall on the Pacfic coast of Mexico on October 23. (Photo by Scott Kelly/NASA via Getty Images)
Now playing
01:07
Why hurricanes are so hard to predict
Storm chasing photographers take photos underneath a rotating supercell storm system in Maxwell, Nebraska on September 3, 2016. Although multiple tornado warnings were issued throughout the area, no funnel cloud touched down. / AFP / Josh Edelson / XGTY
RESTRICTED TO EDITORIAL USE  / MANDATORY CREDIT:  "AFP PHOTO / Josh EDELSON" / NO MARKETING / NO ADVERTISING CAMPAIGNS /  DISTRIBUTED AS A SERVICE TO CLIENTS  ==        (Photo credit should read JOSH EDELSON/AFP/Getty Images)
JOSH EDELSON/AFP/AFP/Getty Images
Storm chasing photographers take photos underneath a rotating supercell storm system in Maxwell, Nebraska on September 3, 2016. Although multiple tornado warnings were issued throughout the area, no funnel cloud touched down. / AFP / Josh Edelson / XGTY RESTRICTED TO EDITORIAL USE / MANDATORY CREDIT: "AFP PHOTO / Josh EDELSON" / NO MARKETING / NO ADVERTISING CAMPAIGNS / DISTRIBUTED AS A SERVICE TO CLIENTS == (Photo credit should read JOSH EDELSON/AFP/Getty Images)
Now playing
00:59
The difference between a tornado watch and a warning
Now playing
01:26
Hurricanes: What you don't know
Courtesy Amy Lloyd
Now playing
01:06
Why flash floods are so dangerous
Now playing
01:54
Why snow and blackouts in Texas are a preview for all of us
ring of fire chad myers weather orig_00003221.jpg
ring of fire chad myers weather orig_00003221.jpg
Now playing
01:13
What is the 'Ring of Fire'?
TOPSHOT - A city worker drives through the flooded street during Hurricane Sally in downtown Pensacola, Florida on September 16, 2020. - Hurricane Sally barrelled into the US Gulf Coast early Wednesday, with forecasts of drenching rains that could provoke "historic" and potentially deadly flash floods.The National Hurricane Center (NHC) said the Category 2 storm hit Gulf Shores, Alabama at about 4:45 am (0945 GMT), bringing maximum sustained winds of about 105 miles (165 kilometers) per hour."Historic life-threatening flooding likely along portions of the northern Gulf coast," the Miami-based center had warned late Tuesday, adding the hurricane could dump up to 20 inches (50 centimeters) of rain in some areas. (Photo by CHANDAN KHANNA / AFP) (Photo by CHANDAN KHANNA/AFP via Getty Images)
CHANDAN KHANNA/AFP/AFP via Getty Images
TOPSHOT - A city worker drives through the flooded street during Hurricane Sally in downtown Pensacola, Florida on September 16, 2020. - Hurricane Sally barrelled into the US Gulf Coast early Wednesday, with forecasts of drenching rains that could provoke "historic" and potentially deadly flash floods.The National Hurricane Center (NHC) said the Category 2 storm hit Gulf Shores, Alabama at about 4:45 am (0945 GMT), bringing maximum sustained winds of about 105 miles (165 kilometers) per hour."Historic life-threatening flooding likely along portions of the northern Gulf coast," the Miami-based center had warned late Tuesday, adding the hurricane could dump up to 20 inches (50 centimeters) of rain in some areas. (Photo by CHANDAN KHANNA / AFP) (Photo by CHANDAN KHANNA/AFP via Getty Images)
Now playing
01:41
How to prepare for severe weather
Franck Verdière/Twitter
Now playing
01:10
What 'rapid intensification' means for storms
natural disasters climate change project planet weir orig_00000313.jpg
CNN
natural disasters climate change project planet weir orig_00000313.jpg
Now playing
03:42
The future of climate change is here, scientist warns
Now playing
01:29
Steer like this to stay out of accidents in the snow
how hurricanes are named orig_00002729.jpg
how hurricanes are named orig_00002729.jpg
Now playing
01:38
How are hurricanes named?

Story highlights

70% of Saturday's flights to, from Denver canceled due to snow

Some airlines offer change-fee waivers

CNN —  

A strong spring snowstorm is stopping travelers in their tracks this weekend in the mountainous state of Colorado.

The near-blizzard weather is expected to bring treacherous travel conditions, close roads and ground flights in and out of the city, officials said.

Denver International Airport reports that approximately 70% of Saturday’s flights have been canceled due to the snow.

The aviation tracking website, FlightAware.com, reports 795 flights, both in and out, have been called off.

Some airlines are offering change-fee waivers due to the inclement weather conditions.

Denver airport advises passengers to check flight statuses early and often, via Twitter.

United, Frontier and Southwest airlines are some of the airlines offering change-fee waivers or refunds to affected passengers. United is planning to resume its operations on Sunday.

Denver is likely to see 8 inches-16 inches of slushy snow by Sunday, the National Weather Service forecasts. The majority of Colorado and southeastern Wyoming are expected to have large amounts of snow. Some higher-elevation areas will see 24 inches or more.

March and April are generally the snowiest months in Denver.

CNN’s Alex Medeiros and Keith Allen contributed to this report.