Richard Clark snaps a photo of Olcott Beach Thursday, May 4, 2017. (Mark Mulville/Buffalo News) By Maki Becker Published Sat, May 6, 2017 SHARE TWEET EMAIL The National Weather Service has issued a flood warning for Niagara and Orleans counties for Sunday. The warning is in effect from 2 a.m. until 8 p.m. More flooding is expected along the south shore of Lake Ontario in low-lying, flood-prone areas as well as around bays and inlets. Click here to see the comments. Add yours now!