Temperature and Moisture Relationships

Summary

Weather is the most variable and, at times, the most difficult to predict component of the fire environment. Temperature and moisture are two weather components that are closely monitored by firefighters because they have a direct impact on fuels and potential fire behavior.

Objectives

• Describe dry bulb temperature, wet bulb temperature, dew point, and relative humidity.

• Describe how temperature and relative humidity can influence wildland fire behavior.

• Determine relative humidity and dew point by using a Pyschometric Table and given inputs.