Astronomical High Tide.
The first questions to ask: How big is the passing storm system? What is its timing in relationship to the full moon?
Follow with: Checking the National Weather Service / NOAA forecasting website which provides detailed information on predicted wind direction and speed (in knots), and sea heights.
Followed by: Tide/Tidal search for the closest coastal near your location. (a few miles of coast line can make a difference) giving high/low tide times.
To complete the picture: The National Data Center Buoy App, real time measurements from instruments on that buoy you can see from shore giving exact wind speed and direction, wave height, wave frequency and more.
Living on the edge of open ocean the dangers are obvious. But the loveliness of marsh, the serene grasses and placid waters, can become swollen masses altering contours of wildlife refuges, tidal rivers, house distances from rising waters along marsh roadways. Serious business all.
Mostly, day-to-day life goes on. But ears or eyes stay alert for two phrases in proximity: “Astronomical High Tide” and the dreaded “Nor’easter”.
Together they scream “Watch Out!”. That’s when specific information becomes critical.
Note. For more information on astronomical high tides: https://tidesandcurrents.noaa.gov/restles4.html