The purpose of this unit is to introduce the online version of the Intermediate Wildland Fire Behavior, S-290 course. The unit discusses the overall course objectives, the content covered in the twelve units comprising this course, course navigation, and the contributors ... Read more »
S-290 Unit 1: The Fire Environment examines the components of the fire environment triangle and how each affects fire behavior. As part of this topic, heat transfer mechanisms and firebrand transport and the contribution to fire behavior are included. Basic fire terminology ... Read more »
S-290 Unit 2: Topographic Influences on Wildland Fire Behavior provides an overview of how topography affects fuels and the direction and spread of wildland fires. Information on features of topographic maps and estimating slope is also presented. This module is part ... Read more »
S-290 Unit 3: Fuels covers the effects of fuels on fire behavior and the terminology for describing fuel characteristics, as well as fuel models used for classification. This module is part of the Intermediate Wildland Fire Behavior ... Read more »
The “S-290 Unit 4: Basic Weather Processes” distance learning module summarizes atmospheric structure and composition, the Sun-Earth radiation budget, weather elements used to describe the atmosphere, the greenhouse effect, and temperature lags observed both daily and ... Read more »
“S-290 Unit 5: Temperature and Relative Humidity Relationships” module focuses on methods of describing humidity in the atmosphere and how temperature changes can affect relative humidity. Topics from this module will be further related to effects on potential fire ... Read more »
S-290 Unit 6: Atmospheric Stability introduces the processes related to stable and unstable atmospheric conditions and explains their impact on fire behavior. This Unit provides detailed information about how fire behavior is affected by stable and unstable atmospheric ... Read more »
S-290 Unit 7: Wind Systems outlines general and local winds and their processes. Detailed information is provided about critical fire weather winds, including frontal winds, foehn winds, and thunderstorm winds and the effects of these winds on wildland fires. The module ... Read more »
The "S-290 Unit 8: Keeping Current with the Weather" distance learning module describes fire weather information and products available from Predictive Services and the National Weather Service. Summaries of the products, including significant fire potential, monthly and ... Read more »
This webcast covers procedures for taking accurate weather observations using belt weather kits and descriptions of other common weather observing equipment used in fire weather. In addition, maintenance of the primary components of the belt weather kit are ... Read more »
S-290 Unit 10: Fuel Moisture provides information about live and dead fuel moisture contents and their relation to fire behavior. Influences on fuel moisture and methods for estimating dead fuel and live fuel moisture in the field are summarized, and guidance is offered for ... Read more »
S-290 Unit 11: Extreme Wildland Fire Behavior covers the characteristics and contributing factors of extreme fire conditions. Fire activity that is considered extreme includes crown fire, spotting, fire whirls, and wind-driven or plume-dominated fires. Description of what ... Read more »
S-290 Unit 12: Gauging Fire Behavior and Guiding Fireline Decisions examines how fire behavior is evaluated and changes are identified, and how these changes affect fireline decisions. Topics in this module build upon information covered in previous units and applies it to ... Read more »