Heat Advisory: Niagara; Orleans; Monroe; Wayne; Northern Cayuga; Oswego; Jefferson; Lewis; Northern Erie; Genesee; Wyoming; Livingston; Ontario; Chautauqua; Cattaraugus; Allegany; Southern Erie

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Heat Advisory — Niagara; Orleans; Monroe; Wayne; Northern Cayuga; Oswego; Jefferson; Lewis; Northern Erie; Genesee; Wyoming; Livingston; Ontario; Chautauqua; Cattaraugus; Allegany; Southern Erie Severity: Moderate. Certainty: Likely. * WHAT...Heat index values of 95 to 100 across much of western and north central NY, with as high as 104 possible across the lake plains, Genesee Valley, and Finger Lakes region. * WHERE...All of western and north central New York. * WHEN...From 11 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat related illnesses to occur.