Coastal Flood Watch

* WHAT...For the High Surf Advisory, large breaking waves of 8 to 12 feet expected in the surf zone. For the Coastal Flood Watch, 2 to 4 feet of inundation above ground level possible in low- lying areas near shorelines and tidal waterways.

* WHERE...Hatteras Island.

* WHEN...For the High Surf Advisory, from 2 PM Saturday to 8 AM EDT Tuesday. For the Coastal Flood Watch, from Saturday afternoon through Tuesday morning.

* IMPACTS...2 to 4 feet of inundation above ground level is possible in some areas near shorelines and tidal waterways resulting in an elevated threat of property damage. Flooding will extend inland from the waterfront threatening some homes and businesses. Numerous road closures and flooding of vehicles will be possible. Vulnerable portions of NC-12 may be inundated, especially around high tide. Dangerous swimming and surfing conditions and localized beach erosion.

* ADDITIONAL DETAILS...This has the potential to be a long duration event bringing more significant ocean overwash impacts to vulnerable oceanside areas through multiple high tide cycles into next week. Minor soundside water level rises will also be possible.