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Unit 6: Local and General Winds

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Wind Effects   ::   General Winds   ::   Local Winds   ::   Winds of Concern   ::   Wind Input   ::   Exercises


Upon completion of this unit you will be expected to:

  • Explain the relationship between general, local, surface and midflame winds.
  • Give the origins or causes of six kinds of winds, local or general.
  • Given locations on a topographic map, describe typical slope and valley winds at those locations for various times of day.
  • Show the usual winds that result with a cold front passage.
  • Illustrate the first three stages of thunderstorm development, and describe the weather conditions associated with each stage.
  • Explain how windspeeds are measured, and how wind predictions are applied to fire spread calculations.
  • Determine midflame windspeeds when given the 20-foot surface winds, fuel type or model, and terrain features.


This unit addresses winds, both local and general, and what firefighters should know about them.

Copyright 2008, by the Contributing Authors. Cite/attribute Resource . admin. (2005, September 28). Unit 6: Local and General Winds. Retrieved January 07, 2011, from Free Online Course Materials — USU OpenCourseWare Web site: This work is licensed under a Creative Commons License Creative Commons License