Hurricane
A Hurricane is a tropical cyclone or localized, low-pressure weather system that has organized thunderstorms but no front (a boundary separating two air masses of different densities) and maximum sustained winds of at least 74 mph.
In the National Risk Index, a Hurricane Risk Index score and rating represent a community's relative risk for Hurricanes when compared to the rest of the United States. A Hurricane Expected Annual Loss score and rating represent a community's relative level of expected building and population loss each year due to Hurricanes when compared to the rest of the United States.
Hurricane Exposure
A Hurricane exposure value represents a community's building value (in dollars), population (in both people and population equivalence), and agriculture value (in dollars) exposed to Hurricanes.
Hurricane Annualized Frequency
A Hurricane annualized frequency value represents the average number of recorded Hurricane hazard occurrences (events) per year over the period of record (169.9 years for the Atlantic Basin and 69.04 years for the Pacific Basin).
Source Data
Hurricane Historic Loss Ratio
A Hurricane historic loss ratio provides an estimate for the representative percentage of the exposed consequence type value (building, population, or agriculture) expected to be lost due to a Hurricane hazard occurrence.
For comprehensive details about the Hurricane historic loss ratio methodology, see the National Risk Index Technical Documentation.
Hurricane Processing Methodology
For comprehensive details about the Hurricane processing methodology, see the National Risk Index Technical Documentation.