Staff

Lel Tone

Lel Tone

Lel Has been working in the avalanche field since 1995. Over the years she has been a member of the Palisades Tahoe ski patrol as an avalanche technician and avalanche forecaster. This has provided her ample days in the field conducting mitigation work, in the Sierras and Alaska. Lel’s time as an avalanche professional has offered her many diverse opportunities in the mountains. She has worked as a helicopter ski guide since 1999, working for Points North Heli, Chugach Powder Guides and most recently Tordrillo Mountain Lodge. She has also worked as a technical representative for Back Country Access for the last 2 decades. Her passion and love for the mountains, drew her to avalanche education. Since 1997, Lel has been teaching avalanche awareness courses throughout the Mountain West, Avalanche Level 1 and 2 for AIARE and The National Ski Patrol and professional avalanche training classes for her local Search and Rescue and Fire Departments. She has also been honored to teach at the National Avalanche School.

Most recently, Lel has had the pleasure of working for DHA, helping design and implementing an avalanche forecasting and avalanche mitigation program for the Union Pacific Railroad out of Truckee, California.

When not on snow in ski boots, Lel splits her time between Tahoe, Alaska and Idaho with her partner and two dogs, enjoying the great outdoors as much as she can!


Dave Hamre
Founder/Owner/Senior Consultant
After a year on the ski patrol, Hamre was awarded the new position of Snow Safety Director at Alta, UT, in 1972.  He was then 20 years old.  After 5 years at Alta, he set his sights farther north, first… (Read more)
Don Sharaf
Avalanche Risk Consultant - Lead
Working for David Hamre and Associates LLC presents the perfect opportunity for Don to draw on his 30+ years as an avalanche professional.  Years of glacier mountaineering and backcountry ski guiding led into over 20 years of mechanized ski guiding… (Read more)
Ted Steiner
Burlington-Northern Avalanche Program Assistant Manager and Avalanche Risk Consultant
Richard (Ted) Steiner has been working in the avalanche safety arena as a practitioner since the mid-80s.  He began consulting with David Hamre & Associates in 2005 and since that time has assisted with the design and operation of various… (Read more)
Adam Clark
Burlington-Northern Avalanche Program Manager
Adam is a mountain professional based in Whitefish, MT where he leads the BNSF Railway Avalanche Program. He also works as researcher with the USGS Glaciology Program and as a professional mountain guide. Adam has a lifelong passion for the… (Read more)
Mark O'Geen
Union Pacific Avalanche Program Manager and Avalanche Risk Consultant
Mark grew up in the Sierra Foothills and developed a love for skiing and rivers as a youngster. He obtained a business degree from Washington State University and headed for Utah to work in the ski Industry. His fascination with… (Read more)
Aleph Johnston-Bloom
Avalanche Risk Consultant
Aleph is an avalanche risk consultant living in Girdwood, Alaska. Prior to joining David Hamre and Associates in 2022, she worked locally forecasting for the Chugach Electric Association powerline for a season and for six seasons as the Lead forecaster… (Read more)
Lel Tone
Avalanche Risk Consultant
Lel Has been working in the avalanche field since 1995. Over the years she has been a member of the Palisades Tahoe ski patrol as an avalanche technician and avalanche forecaster. This has provided her ample days in the field… (Read more)
Onno Wieringa
Avalanche Risk Consultant
Onno Wieringa was born in Conrad Montana and graduated from Montana State University with a B.S. in Commerce in 1972.  During college Onno was a part-time ski patroller at Bridger Bowl and worked with Duane Bowles, Jim Kanzler, Terry Onslow, … (Read more)
Ken Bokelund
Avalanche Risk Consultant
Ken Bokelund’s career in avalanche mitigation and risk management spans over three decades, commencing with ski patrolling at Homewood Mountain Resort in Lake Tahoe in 1990. In 1992, he transitioned to Alpine Meadows Professional Ski Patrol, culminating in his retirement… (Read more)
Andrew Schauer
Avalanche Risk Consultant
Andrew has worked in the avalanche industry for the past 7 years as a backcountry avalanche forecaster, educator, and guide in Alaska and Montana. He earned a Master’s degree from the Snow and Avalanche Lab at Montana State University and… (Read more)
Beth Cleary
Avalanche Risk Consultant
Beth graduated from Alaska Pacific University with a Bachelor of Arts in Outdoor Studies. During her time at APU, her studies focused on Snow and Avalanche Science. Beth worked for Alaska Mountaineering School for 10 years. She guided over a… (Read more)