This book is designed to enhance your understanding of fire weather by providing foundational knowledge in a clear and accessible manner. It aims to build your daily and seasonal awareness of fire weather conditions using straightforward explanations. The authors have minimized the use of technical jargon but have introduced and defined necessary terms to ensure clarity and accuracy. By focusing on practical, reliable information, the book helps you grasp the essential concepts related to fire weather, making it a valuable resource for both beginners and those looking to refresh their knowledge.

Set includes revised editions of some issues.

Weather is never static. It is always dynamic. Its interpretation is an art. The art of applying complex information about weather to the equally complex task of wildland fire control cannot be acquired easily especially not by the mere reading of a book. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing Mother Nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of fire weather can begin with reliable basic knowledge. We have kept the use of technical terms to a minimum, but where it was necessary for clear and accurate presentation, we have introduced and defined the proper terms. Growing awareness of fire weather, when combined with related experience on fires, can develop into increasingly intuitive, rapid, and accurate applications.

Weather is never static. It is always dynamic. Its interpretation is an art. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing Mother Nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of fire weather can begin with reliable basic knowledge. We have kept the use of technical terms to a minimum, but where it was necessary for clear and accurate presentation, we have introduced and defined the proper terms. Growing awareness of fire weather, when combined with related experience on fires, can develop into increasingly intuitive, rapid, and accurate applications. Toward this end, we have preceded each chapter with a paragraph or two on important points to look for in relating weather factors to fire control planning and action.

PULITZER PRIZE FINALIST • A NEW YORK TIMES TOP TEN BOOK OF THE YEAR • FINALIST FOR THE NATIONAL BOOK AWARD IN NONFICTION • A stunning account of a colossal wildfire and a panoramic exploration of the rapidly changing relationship between fire and humankind from the award-winning, best-selling author of The Tiger and The Golden Spruce • Winner of the Baillie Gifford Prize for Non-Fiction A BEST BOOK OF THE YEAR: The New York Times, The Washington Post, The New Yorker, TIME, NPR, Slate, and Smithsonian “Grips like a philosophical thriller, warns like a beacon, and shocks to the core." —Robert Macfarlane, bestselling author of Underland “Riveting, spellbinding, astounding on every page.” —David Wallace-Wells, #1 bestselling author of The Uninhabitable Earth In May 2016, Fort McMurray, the hub of Canada’s oil industry and America’s biggest foreign supplier, was overrun by wildfire. The multi-billion-dollar disaster melted vehicles, turned entire neighborhoods into firebombs, and drove 88,000 people from their homes in a single afternoon. Through the lens of this apocalyptic conflagration—the wildfire equivalent of Hurricane Katrina—John Vaillant warns that this was not a unique event, but a shocking preview of what we must prepare for in a hotter, more flammable world. Fire has been a partner in our evolution for hundreds of millennia, shaping culture, civilization, and, very likely, our brains. Fire has enabled us to cook our food, defend and heat our homes, and power the machines that drive our titanic economy. Yet this volatile energy source has always threatened to elude our control, and in our new age of intensifying climate change, we are seeing its destructive power unleashed in previously unimaginable ways. With masterly prose and a cinematic eye, Vaillant takes us on a riveting journey through the intertwined histories of North America’s oil industry and the birth of climate science, to the unprecedented devastation wrought by modern forest fires, and into lives forever changed by these disasters. John Vaillant’s urgent work is a book for—and from—our new century of fire, which has only just begun.

Data that represent average worst fire weather for a particular area are used to index daily fire danger; however, they do not account for different locations or diurnal weather changes that significantly affect fire behavior potential. To study the effects that selected changes in weather databases have on computed fire behavior parameters, weather data for the northern Rocky Mountains were treated as probability distributions, then used in computer simulation to estimate distributions of rate-of-spread (ROS) and fireline intensity (FLI). Sensitivity of ROS and FLl to weather input changes was analyzed by varying the source and amount of weather data, and diurnally adjusting temperature and relative humidity. In eight representative cases, a minimum amount of data produced the lowest cumulative probabilities of ROS and FLl, and data from a higher elevation produced the highest values. For long-term planning, within the region studied, a small subset of weather data distributions was adequate for estimating probabilistic distributions of ROS and FLI. Joint probabilities of ROS and FLI differed substantially among test cases. Fire behavior values obtained with observed data were higher than those obtained with diurnally adjusted data. The simulation techniques used are appropriate for use in long-term fire management planning models.