The Little River in Niagara Falls was high and the surface frozen early Tuesday afternoon. This is a look towards the west from the bridge to Cayuga Island on South 86th Street. (Aaron Besecker/Buffalo News)
Updated 5:13 p.m.:
A flash-flood warning has been issued by the National Weather Service for the upper Niagara River area in Niagara Falls until 3:30 p.m. until 9:30 p.m.
Icebreakers from both the Canadian and U.S. side have been trying to dislodge an ice jam in the Niagara River between Cayuga Island and the New York Power Authority water intakes since about 9:30 a.m., said Niagara Falls Mayor Paul A. Dyster midnight, an authority spokeswoman said.
Police Superintendent Bryan DalPorto has been on Cayuga Island and has described the significance of the ice jam as something he had never seen before, calling it "unprecedented," Dyster said.
A police officer is being stationed on Cayuga Island, along with "assets" from the Department of Public Works.
At this point, evacuation is not warranted, but officials are keeping an eye on the situtation, Dyster said.
A flood gauge near the LaSalle Yacht Club has, thus far, indicated that the water level has not yet risen high enough to cause damages.
Water levels have risen over the banks of the Little River, causing some water to accumulate in Jayne Park, Dyster said.