Lake Ontario's southern shoreline is about to get swamped again.
The National Weather Service issued a lakeshore flood warning for Niagara, Orleans, Monroe and Wayne counties from 7 a.m. to 4 p.m. Tuesday.
"The combination of high lake levels and wave action may worsen flooding in low-lying areas along the Lake Ontario shoreline," the weather service statement said.
Flooding and erosion is expected along the immediate lakeshore, forecasters said.
Lake Ontario's water levels are near their highest on record this month, according to U.S. Army Corps of Engineers data.
The weather service also issued a bulletin for Lake Erie's shoreline in Chautauqua County, posting a beach hazards statement running through 11 p.m. today.
"Strong currents and dangerous swimming conditions" are expected along the shoreline in places like Ripley, Westfield, Lake Erie State Park in Portland, Point Gratiot and Wright Park beaches in Dunkirk and Sunset Bay in Hanover, according to forecasters.
"This means life-threatening waves and currents are expected," the bulletin stated. "Stay out of the water and stay away from dangerous areas like piers and breakwalls."