New York Severe Lakeshore Flood Warning | Effective 06/18/2026 18:59
* WHAT...Minor lakeshore flooding expected.
* WHERE...Lake Ontario shore of Oswego and Jefferson counties.
Water rises are also possible along the upper Saint Lawrence
River in the Thousand Islands region.
* WHEN...Until 8 PM EDT Friday.
* IMPACTS...The combination of high lake levels and significant
wave action will result in minor lakeshore flooding along the
immediate lakeshore, especially in bays, inlets, harbors, and
other low lying areas along the shoreline. Shoreline erosion
is also expected.