New York Severe Lakeshore Flood Warning | Effective 06/17/2026 09:58
* WHAT...Minor lakeshore flooding expected.
* WHERE...Lake Ontario shore of Oswego and Jefferson counties.<br />
Water rises are also possible along the upper Saint Lawrence<br />
River in the Thousand Islands region.
* WHEN...From 2 PM Thursday to 8 PM EDT Friday.
* IMPACTS...The combination of high lake levels and significant<br />
wave action may result in minor lakeshore flooding along the<br />
immediate lakeshore, especially in bays, inlets, harbors, and<br />
other low lying areas along the shoreline. Shoreline erosion is<br />