It is a weekend of extreme weather across the country. Much of the nation is hot. There have been heat advisories in the Midwest and Southwest. There's a heat warning in Phoenix tonight after another day of triple-digit temperatures.

But as you travel north you'll find something you don't expect this time of year: lots of snow.

CBS News correspondent Tony Guida reports that some say the world will end in fire, some say in ice. Robert Frost's words clearly were not on the minds of holiday skiers at Crystal Mountain, Washington.

"I'm so excited. It's great. Get a tan. All this snow is awesome," says Lukas Holland, a snowboarder.

Actually, it's 50 feet of awesome. This has been the mountain's best season in 12 years. All across the West this weekend, skiers are flocking to mountains flush with snow: 40 feet at Arapahoe Basin, west of Denver; 70 feet at Squaw Valley, Idaho.

But record snowfalls mean dangerously swollen rivers. Nowhere has that been more evident than Minot, N.D., where heavy rains compounded the massive snowmelt. Thousands are still homeless, while many returning this weekend found conditions unlivable: flooding forced sewage into their homes.

"We're just starting now to get other people moving in and i'm moving out," says Minot resident Tim Owen.

A huge wildfire continues burning in Northern New Mexico, but it no longer threatens the Los Alamos Nuclear Lab. It scarred a mountain on a nearby reservation and now endangers sites sacred to the Santa Clara Pueblo Indians. Some residents are angry.

"We see that their focus was to save the Los Alamos but what about us? We're still not even recovered from the last fire," says local Gilbert Naranjo.

Much of the West continues sweltering under relentless heat. You could fry a steak on the pavement in phoenix.

Saturday's official record -118 degrees - came with monsoon winds that toppled power lines. 4,000 homes lost air conditioning.

Prisoners were moved from jail cells to outdoor tents where temperatures reached 145. Sheriff Joe Arpaio supplied inmates with ice, but that was the limit of his sympathy.

"In Baghdad, it's about 115 degrees," the sheriff says.

Some Phoenix residents turned philosophical, saying it's better than shoveling snow. Fourth of July skiers would disagree.