During a nor’easter or another coastal storm, the tide table is only one part of the picture. Wind, pressure and waves can make actual water levels and shoreline conditions differ from the astronomical prediction.
Tide, surge and storm tide
The astronomical tide is the predicted cycle shown in our inlet table. Storm surge is the weather-driven change in water level beyond the astronomical tide. Storm tide combines the tide and surge. The National Weather Service storm surge explanation describes these terms.
Do not confuse any of these water-level terms with wave height. Waves can create additional shoreline hazards even when the prediction table does not look exceptional.
Why a low tide does not remove storm risk
A lower astronomical level can coincide with strong winds, rough surf or flooding impacts. A prediction does not include all storm effects and cannot certify a route or beach as usable. Avoid choosing a storm-time outing solely because the table shows a low event.
Use the forecast for the actual date
Check official Ocean City weather and alerts, then follow local closures and emergency instructions. Read the issue time and forecast area. A screenshot from a previous storm is not a current warning, and a guide’s publication date is not a weather observation.
Change the plan before reaching the shoreline
- Check alerts before travelling, not only after arrival.
- Consider whether the return road or access point can be affected.
- Choose a dry inland alternative when conditions or access are uncertain.
- Avoid exposed rocks, wave-washed structures and flooded roads.
- Keep distance from high water rather than using it as a photo opportunity.
After the event
Access can remain restricted after the astronomical tide falls or the sky clears. Check the local reopening status. Debris, erosion or altered routes are separate from the table’s next low-water time.
Further reading
See king tides and coastal flooding to separate predictions from impacts and beach safety guidance for the limits of a tide-based swimming decision.
