Olympic Snowboarder Julie Pomagalski Dead At 40 After Avalanche In Swiss Alps

French Olympian snowboarder Julie Pomagalski -- who won a World Championship in 1999 -- has died after an avalanche in the Swiss Alps on Tuesday.

She was 40.

The French Ski Federation made the announcement Wednesday .. saying Pomagalski and a guide, Bruno Cutelli, died in the accident.

Police say the cause of the avalanche is unknown at this time.

Pomagalski was a two-time Olympian for France ... finishing 6th in the parallel giant slalom at the 2002 Salt Lake City games ... and also competed in the 2006 games in Torino, Italy.

She was also the 1999 World Champion in snowboard cross, and won the 2004 Snowboard World Cup and was Vice-World Champion in parallel giant in 2003.

Skiing runs in Pomagalski's family ... her grandfather, Jean Pomagalski, invented the first ski lift in 1934 and is the founder of POMA, a manufacturer for chairlifts.

The French Olympics team made a statement Wednesday, saying "the tragic death of Julie, snowboard world champion and Olympian, leaves the France OLY team in mourning for one of their own."