Inundation Dashboard provides real-time alerts and historical inundation information at select NOS stations. The product is available in three regions: New York City/Long Island Sound; Lower Chesapeake Bay; and coastal North Carolina with additional regions to follow.
Alerts are triggered when observed or forecast water levels at NOS tide stations exceed NOAA minor flood thresholds. Stations experiencing possible inundation are listed at the top and have blinking station markers.
Latest water level observations, next high tide information and forecasted peak water level for today and tomorrow available by clicking on a station.
Water level observations over the past 24 hours with respect to the station minor flood threshold, along with tide predictions and, if available, model forecast water level (available under Inundation History).
Number of historical flood days per year at select NOS stations (accessible under Inundation History).
Top ten historic water levels (accessible under Inundation History).
Latest sea level trend and 1%, 10%, 50%, and 99% annual exceedance probability levels, where available(accessible under Inundation History).
Inundation benchmarks available at select locations providing inundation information at local landmarks.
Links to additional real-time water level data collected at stations operated by the U.S. Geological Survey (USGS).