Ode from an Avalanche Charlie Hagedorn Is a Physicist and Backcountry Skier from My Name Is Avalanche, and You Must Try— Seattle, WA
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last snow flake of winter storm creates instability 38.2 DECEMBER 2019 photo Art Burrows TOOLS FOR THE SEASON In the above photo you can see only a small portion of a massive D5 avalanche that ran off Garrett Peak above East Snowmass Creek overnight March 14–15, 2019. The full extent of the avalanche broke around two miles wide and ran over 2200 vertical feet to the creek bottom. In the right photo, this natural slide (HS-N-D3-O) near Stanley, Idaho released in late January during last winter’s first significant loading event. The thickest portions of the crown were over 15 feet tall. This avalanche released on a shady slope below Williams Peak in the northern Sawtooths on the same day two skiers self-rescued themselves from full burials 50 miles to the south in the mountains near Ketchum. photo Tanner Haskins //// AvAlAnche hAzArd - control MAnAgeMent One partner, many solutions TAS is the world leader in prevention systems for avalanche risk management. The company designs and manufactures gas RACS (Remote Avalanche Control Systems) without explosives use and avalanche barriers.TAS also offers advanced monitoring solutions in order to anticipate, analyze and control the global avalanche activity. 2 800 PRESENCE RACS IN 20 COUNTRIES 1 MND America PO Box 2167 063 Eagle Park E Dr Eagle CO 81631- 2167. UNITED STATES www.tas.fr - www.mndamerica.com 2 THE AVALANCHE REVIEW Vol. 38.2 December 2019 3 STAY CONNECTED TO YOUR STAFF. NO MATTER WHERE THE WORKDAY LEADS THEM. INREACH® SERIES Send and receive messages, track and share your location, and trigger an SOS, globally, 24/7, through the 100% global Iridium® satellite network¹. Because even when you can’t see your staff in the fi eld, our satellite network can. 1Satellite subscription required. NOTICE: Some jurisdictions regulate or prohibit the use of satellite communications devices. It is the responsibility of the user to know and follow all applicable laws in the jurisdictions where the device is intended to be used. ©2019 Garmin Ltd. or its subsidiaries. 19-MCJT27555 inReach Series Snow Sports Ad-9.5x13.375.indd 1 10/23/19 8:13 AM 38.2 CONTENTS TOOLS FOR THE UPCOMING SEASON December shadows grow A3 STATEMENT OF PURPOSE skis turned homeward The American Avalanche Association promotes and supports professionalism and FEATURE STORIES excellence in avalanche safety, education, and research in the United States. 24 OAT: Exploring the Virtues of Skiing One at a Time by Lou Dawson A3 STAFF AND BOARD Lisa Van Sciver .............................. 27 Lynne Wolfe.................................. 28 Executive Director............Dan Kaveney Ron Johnson .................................27 Henry Munter ............................... 29 Pro Training Coordinator.....Kate Koons Aaron Diamond ........................... 27 Steve Conger ................................30 Jed Porter ..................................... 27 Mark Saurer .................................. 30 A3 Governing Board Trustees Blase Reardon .............................. 27 Emily Johnston ............................. 30 President* .................Halsted Morris Dale Atkins ....................................28 Peter Thurston ............................. 31 Vice President* .........Erich Peitzsch Secretary* ................Katie Johnston Joe Stock ...................................... 28 Josh Kling ..................................... 32 Treasurer* .................Pete Woodring Courses for Croatia by Sean Zimmerman-Wall Membership* ........... Jake Hutchinson 33 Publications ............. Drew Pogge 36 HUCKEM by Steve Conger Education ................ Eeva Latosuo Lazy Brain by Sara Boilen Governance ............. Tom Mattice 38 At-Large Pro ............ Sean Zimmerman-Wall 40 How Old Are People Who Die in Avalanches? by Erich Peitzsch et. al. Member Affiliate ...... Jonathan Shefftz 44 Judgment Day: Importance of Partner Selection by Drew Pogge. Executive Committee denoted by * Editor ...................... Lynne Wolfe DEPARTMENTS Editors Emeriti Steve Conger 6 From A3 Sue Ferguson 10 News Blase Reardon Snow Science Bruce Tremper 16 A3 Research Report: Pattern Recognition by Andrew Schauer 18 Inter-party Avalanche Involvements by Charlie Hagedorn 21 Do You Know What Your Map Knows? by Jeff Deems The Avalanche Review is published each fall through spring by the American Avalanche Association, Inc., a nonprofit corporation. The Avalanche Review welcomes the submission of articles, photographs, ISSW 2020 and illustrations. Fernie, British Columbia CANADA Please send submissions to: Lynne Wolfe –– Editor tel: (208) 709-4073 [email protected] Design & Production: McKenzie Long –– Designer tel: (513) 515-0723 [email protected] MATT KUHN PHOTO KUHN MATT Business, Subscriptions, & Advertising: Dan Kaveney –– A3 Executive Director tel: (307) 264-5924 [email protected] Subscription: $35 per year (4 issues). Subscription is OCTOBER 4-9, 2020 included with membership dues to A3. For subscription and membership information, see Visit issw2020.com www.AmericanAvalancheAssociation.org. Articles, including editorials, appearing in The Avalanche Review reflect the individual views of the authors and not the official points of view adopted by A3 or the orga- nizations with which the authors are affiliated unless otherwise stated. © 2019 by the American Avalanche Association. SUPPORTING SPONSOR PRESENTED BY NATIONAL SUPPORTING SPONSOR Materials may be reproduced for research or classroom use. Permission is also granted for use of short quotations, figures, and tables in scientific books and journals. For permission for other uses, contact The Avalanche Review. FROM A3 FROM THE EDITOR: Tools for the Upcoming Season BY LYNNE WOLFE SAW season just came to an end, leaving me simultaneously tired and energized. We work remotely on my A3 avalanche team. Dan K is in Bozeman, but he’s pretty quick on reply with texts or phone calls. Kate Koons is just down the road in Victor, but she’s been on the road in in the air a lot this autumn, meeting with course providers and guiding the Pro education program through growing pains and vision clarification. When she and I get together it’s a mile a minute, as you can imagine, and while we each seek out the other’s insights, overlap in our schedules is rare. Our graph- ic designer McKenzie Long and I also work remotely, mostly via Dropbox. I admire her creativity and vision so much; every so often we talk on the phone and we’ve met in person once. I encounter you, my readers and authors, through the pages of TAR and the phosphorescence of email. When we connect in person, across the A3 table at a SAW or over a beer, I thrive on your energy, your ideas, and your experience. I want to know what you think about a presentation or how At the pre-NSAW party at 20 Corners Brewery I got to visit with my dear friend and continual inspiration Patty you used a TAR article in your practice. You inspire me, and in turn I want to share that inspiration. Morrison. Now if only I had opened my eyes for the Did you go to a local SAW this autumn? What tools or insight will you take into this winter? Look for SAW picture... reports in the February TAR, and feel free to email me any comments on this topic. Here’s a collection of tools, tips, tricks, insights, and inspiration from our community for this season. Need a visual reminder of last year’s avalanche drama? Black and white heightens contrast in the cover’s deep slab images—Snowmass from master photographer Art Burrows and the craggy Sawtooth from Tanner Haskins. We can always use some numbers to back up our intuition. Here’s an array of stories bringing data and subsequent insight into: • weather patterns and deep slab problems • Jeff Deems, in a reprise of his recent Haiku HUNT (Andrew Schauer, p 16) CSAW presentation, offers clarity into • a new formula for understanding inter- digital mapping technology. He has some Scattered throughout this issue are snow party avalanches in the busy backcountry clear take-home messages as well. Thanks, and avalanche-themed haiku composed by (Charlie Hagedorn, p 18) Jeff, for punctuating your busy schedule Jerry Roberts. Enjoy! • an increase in the ages of avalanche victims with an assignment from TAR. (p 21) (Erich Peitzsch, p 40) I had a great time bringing together an array of decision-making tools for you in this issue. • In his usual concise and entertaining fashion, Steve Conger has invented an acronym (no! not columns, needles, stellars another acronym) to help us make quick, efficient, and accurate decisions. I might even try bounce off to HUCKEM this winter, but only if it’s deep enough, haha. (p 36) midnight windshield • Clinical psychologist and backcountry skier Sara Boilen cautions us about reverting to our “lazy brain” default setting on page 38. • You guys know that Drew Pogge, formerly of Backcountry Magazine and currently of Mon- tana Alpine Adventures and the Bell Lake Yurt, is now our A3 publications chair, and Rich Marriott and Mark Moore put finishing touches on their therefore my boss? I always need help bal- highly entertaining presentation on the history of the Northwest ancing the intersection of guide and writ- Avalanche Center, which was hosted on October 19 at 20 Corners Brewing in Woodinville, WA. Select proceeds from the A3 AVSAR UPDATE ing skills, and Drew is a pro on both counts. sale of 20 Corners’ concurrent special release of Storm Cycle IPA He shares some words of advice on select- will benefit A3. Stay tuned to A3 social media for the link to a recording of this presentation. Over the last few years the American ing a backcountry partner on page 44. Avalanche Association (A3) has been • A3 at-large trustee Sean Zimmerman- working with industry professionals to Wall is a busy guy. So of course he has time craft proficiencies and guidelines for an to visit Croatia and write an article about his Avalanche Search and Rescue course. This experience teaching avalanche rescue to the course focuses on organized rescue, and Croatian Mountain Rescue Service. (p 33) goes beyond the companion rescue covered Putting together a round table of ideas in Avalanche Rescue Fundamentals, or any and reactions to a question is one of my other recreational level avalanche course.