Haines Index
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Haines Index is a weather index developed by the meteorologist Donald Haines in 1988 that measures the potential for forest fires to grow rapidly. The index is derived from the stability (temperature difference between different levels of the atmosphere) and moisture content (Dew point depression) of the lower atmosphere. The index is calculated over three ranges; low elavation (950-850mb), mid elevation (850-700mb), and high elevation (700-500mb).[1]
A Haines index of 6 means a high potential for large fire growth. 5 means medium potential, 4 low potential, and anything less than 4 means very low potential.
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