Fire Potential Wind Index (FPWI)

Fire Potential Wind Index (FPWI) is a discrete fire danger metric, ranging from one to four (low to extreme).

FPIW captures extreme wildfire conditions by combining two metrics:

• Fire Potential Index Composite (FPIC)

• Wind gust percentiles

FPWI extends the FPIC framework to specifically address utility operational needs, particularly for Public Safety Power Shutoff (PSPS) decision-making, recognizing that wind is a critical driver of both powerline-related ignitions and rapid fire spread.

FPWI is designed for seamless integration into utility operational workflows through platforms like Wildfire Analyst.