Lakeshore Flood — Northern Cayuga, New York

2019-05-20 to 2019-05-31 · Northern Cayuga, New York

Wider weather episode

Excessive runoff into the Ottawa River Basin in Canada restricted the outlet of Lake Ontario. This combined with above normal precipitation into the Lake Ontario Basin, record levels on the Great Lakes above Lake Ontario, and higher than normal flows into the lake from the Niagara River pushed the lake to well above normal levels. Over the course of May, the levels quickly approached those reached in 2017.

Source: NOAA Storm Events Database, event_id 829712. Narrative written by the NWS forecast office that issued the report.