Live updates: Gov. Kathy Hochul declares state of emergency ahead of nor'easter

The storm is moving along Long Island's South Shore and could dump up to six inches of rain on some areas, according to forecasters. A prolonged stretch of rainfall is expected to continue straight through Monday, saturating the ground and raising the risk of downed trees and power lines.

Forecasters warned the nor'easter could also bring significant coastal flooding on top of the storm surge already reported in some spots. Saturated soil combined with high winds makes trees more likely to topple, a common cause of widespread power outages during storms like this one. People across Long Island are looking at a multi-day weather event, not a quick pass-through storm, with the heaviest impacts stacking up over the weekend before tapering off Monday.

Six inches of rain is a lot to ask of ground that's already soggy from storm surge flooding, and the timeline means Long Island residents could be dealing with wind, rain and flooding worries well into the start of next week.