and decades) with probabilistic or deterministic information to manage risk in advance of a heat event and increased ambient temperature. (8) Tribal government The term Tribal government means the recognized governing body of any Indian or Alaska Native tribe, band, nation, pueblo, village, community, component band, or component reservation, individually identified (including parenthetically) in the list published most recently as of the date of enactment of this Act pursuant to section 104 of the Federally Recognized Indian Tribe List Act of 1994 ( 25 U.S.C. 5131 ). (9) Urban heat island The term urban heat island means the phenomenon observed in urbanized areas in which heat is more extreme than in the surrounding exurban areas and heat is heterogeneously distributed within urbanized areas, due to factors including— (A) low albedo and impervious surfaces