Used to indicate the potential for rapid fire growth, due to dry and unstable atmospheric conditions over a fire area. The index is a simple way to measure the atmosphere’s contribution to the fire’s growth potential. A High Haines Index is correlated with large fire growth, where winds do not dominate fire behavior.
|Index||Fire’s Growth Potential|
|2||Very Low Potential (moist and unstable lower atmosphere)|
|3||Very Low Potential|
|6||High Potential (dry and unstable lower atmosphere)|