A man uses a snowblower to clear a business parking lot in Denver, Friday, Dec. 22, 2006, after a paralyzing two-day snowstorm. (AP Photo/Bill Ross) 

Motorists work on digging out their cars on a snow-covered street in Denver, Friday, Dec. 22, 2006. A major snowstorm blew across Colorado toward the Plains on Wednesday, canceling hundreds of airline flights for holiday travelers and shutting down major highways in parts of four states. (AP Photo/Bill Ross) 

A Regional Transportation District bus sits sidelined on Colorado Highway 297 in Lafayette, Colo., Friday, Dec. 22, 2006, The bus has been on the side of the highway since Wednesday's snowstorm sidelined the bus. (AP Photo/Peter M. Fredin) 

Vehicles sit buried after a blizzard swept over Denver in a neighborhood on the city's westside on Friday, Dec. 22, 2006. Some mountain areas got more than 3 feet (90 centimeters) of snow, and up to 25 inches (63.5 centimeters) fell in the Denver metropolitan area. Bus and train service was shut down. (AP Photo/David Zalubowski) 

Sheldon Van Valkenburg clears his driveway of snow in Denver, Thursday, Dec. 21, 2006. A powerful winter storm brought heavy snow and strong winds to Colorado Wednesday and Thursday closing Denver International Airport and shutting down most of the state east of the Rocky Mountains. (AP Photo/Ed Andrieski).

Airport collects blowing snow, preventing passengers from walking to the terminal, Thursday, Dec. 21, 2006. A powerful blizzard has closed the airport until Friday afternoon. (AP Photo/Will Powers) 

Jesus Velasquez gets a face full of snow as he tries clearing the Union Station platform for the Light Rail in Denver, Colo. on Thursday Dec. 21, 2006. (AP Photo/Andrew Otto)

A snowplow clears 18th Street in downtown Denver on Thursday, Dec. 21, 2006. A powerful winter storm brought heavy snow and strong winds to Colorado Wednesday and Thursday closing Denver International Airport and shutting down most of the state east of the Rocky Mountains. (AP Photo/Ed Andrieski) 

A Colorado Department of Transportation snowplow clears Highway 287 south of Longmont, Colo., Thursday, Dec. 21, 2006. (AP Photo/Peter M. Fredin) 

A snow-covered automobile waits to be dug out in downtown Denver, Thursday, Dec. 21, 2006. Nearly 5,000 travelers who mistakenly thought they were beating the Christmas rush struggled to find a hotel room or faced another night on the hard floor at Denver's snowbound airport Thursday after a blizzard paralyzed the city. (AP Photo/Bill Ross) 

A snow-capped SUV makes its way through the streets in downtown Denver, Thursday, Dec. 21, 2006. A major snowstorm blew across Colorado toward the Plains on Wednesday, canceling hundreds of airline flights for holiday travelers and shutting down major highways in parts of four states. (AP Photo/Bill Ross) 

Cars are covered with snow drifts at Denver International Airport, Thursday, Dec. 21, 2006. A powerful snowstorm paralyzed Colorado's biggest cities with up to 2 feet of snow. (AP Photo/Will Powers) 

Mary Swartz digs her car out of the snow in Denver on Thursday, Dec. 21, 2006. A powerful winter storm brought heavy snow and strong winds to Colorado Wednesday and Thursday closing Denver International Airport and shutting down most of the state east of the Rocky Mountains. (AP Photo/Ed Andrieski) 

AP - Thu Dec 21, 1:45 PM ET A Continental Airlines plane sits near the concourse at Denver International Airport covered with ice and snow Thursday, Dec. 21, 2006. A powerful snowstorm has closed the airport until Friday. The planes will have to be de-iced and the runways cleared before the airport can open. (AP Photo/Will Powers) 

AP - Thu Dec 21, 1:44 PM ET A Continental Airlines plane sits near the concourse at Denver International Airport covered with ice and snow Thursday, Dec. 21, 2006. 
(AP Photo/Will Powers) 

A vehicle is covered with snow in a parking spot in downtown Denver on Thursday, Dec. 21, 2006. More than two feet of snow fell on some parts of Colorado before a powerful snowstorm moved out of the interior West on Thursday. (AP Photo/David Zalubowski) 
 
 

Snow tops the boxes on a street corner in downtown Denver on Thursday, Dec. 21, 2006.  (AP Photo/David Zalubowski) 

Snow tops the boxes on a street corner in downtown Denver on Thursday, Dec. 21, 2006. (AP Photo/David Zalubowski) 
 

Traffic along southbound Interstate 25 toward Denver at the Colorado Highway 7 overpass comes to a standstill during a winter storm, Wednesday, Dec. 20, 2006, near Erie, Colo. (AP Photo/Peter M. Fredin)