Craig Gordon, from the Utah Avalanche Center, said around 2.5ft (76cm) of heavy, wet snow had fallen in the area in the past three days during the snow storms, which he said had also brought very strong winds.
“With spring, avalanche conditions can change in an instant,” Mr Gordon said.
He also described the sight of the avalanche, near Lone Peak, as “very serious” and “steep” terrain.
Lone Peak, is one of the highest peaks in the Wasatch Range, towering over Utah’s capital city.
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Its steep, rugged terrain makes it a popular destination for advanced back country skiers and experienced climbers.
The sheriff’s office said the families of the two skiers had been notified of their deaths.
The deaths bring this winter’s tally of avalanche deaths in the US to at least 15 – which is less than the average of about 30 people who are killed by avalanches each year.