North Star EDITIONS WWW NORTHSTAREDITIONS COM Copyright 2017 by North Star Editions Lake Elmo MN 55042 All rights reserved No part of this book may be reproduced or utilized in any form or by any means without written permission from the publisher Produced for North Star Editions by Red Line Editorial Photographs Lysogor Roman Shutterstock Images cover 1 Lee Chamberlin Shutterstock Images 4 5 Rapho Agence Science Source 7 marima design iStockphoto 8 9 Kevin Davidson iStockphoto 11 Travers Eric Sipa AP Images 13 Smith Collection Gado Getty Images 14 15 Patrick Gardin AP Images 16 Ashley Smith Times News AP Images 18 National Weather Service 20 21 mato Shutterstock Images 22 23 Patrick Landmann Science Source 25 Matthias Schrader AP Images 27 Rick Bowmer AP Images 28 Content Consultant Jordy Hendrikx Associate Professor of Geography Snow and Avalanche Lab Department of Earth Sciences Montana State University ISBN 978 1 63517 000 9 hardcover 978 1 63517 056 6 paperback 978 1 63517 162 4 ebook pdf 978 1 63517 112 9 hosted ebook Library of Congress Control Number 2016950114 Printed in the United States of America Mankato MN November 2016 ABOUT THE AUTHOR A former television weather forecaster Trudi Strain Trueit has written more than 100 fiction and nonfiction books for children Born and raised in the Pacific Northwest she enjoys hiking and photography often both at the same time
TABLE OF CONTENTS CHAPTER 1 White Death 5 CHAPTER 2 Signs of Trouble 9 CHAPTER 3 Weather Watch 15 A CLOSER LOOK Doppler Radar 20 CHAPTER 4 In the Slide Zone 23 Avalanche Safety Checklist 29 Focus on Detecting Avalanches 30 Glossary 31 To Learn More 32 Index 32
CHAPTER 1 WHITE DEATH In In February 2012 a group of 16 expert skiers gathered at Stevens Pass ski resort in Washington State Nearly 3 feet 0.9 m of snow had fallen on the mountains in the past three days The skiers planned to ski an area called Tunnel Creek It was risky At first everything seemed fine The Stevens Pass area in Washington State has a history of dangerous avalanches