HURDAT

The Hurricane Databases (HURDAT), managed by the National Hurricane Center (NHC), are two separate databases that contain details on tropical cyclones that have occurred in the Atlantic Ocean and Eastern Pacific Ocean since 1851 and 1949, respectively.

The Eastern Pacific database was compiled at the NHC in 1976 to help create two tropical cyclone forecast models. Initially, tracks for the Central Pacific region and tracks for tropical depressions that did not develop into tropical storms or hurricanes were not included. Over the next few years, tracks from the Eastern Pacific Hurricane Center (EPHC) were archived by the NHC annually. In 1982, the NHC started to include data on Central Pacific tropical storms and hurricanes, and began issuing advisories in 1988. In 2013, the format of the Eastern Pacific database was changed to include non-synoptic best track times and non-developing tropical depressions.

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