Inundation Analysis Tool


8514779 Seaview Ferry Dock, NY

Please see the data inventory to find a period with hourly or six-minute data available.
Data Inventory

Select a reference elevation and specify a date range for analysis.

You may select from an accepted tidal datum or specify a different elevation.
Most elevations on land are given relative to a geodetic datum such as NAVD88

All analysis results are presently provided in meters relative to the requested threshold.

Meters relative to MHHWFeet relative to MHHWDatum
NOS Major -9.35 -30.68 NOS Major Flood Threshold
NOS Moderate -9.35 -30.68 NOS Moderate Flood Threshold
NOS Minor -9.35 -30.68 NOS Minor Flood Threshold
MHHW 0.0 0.0 Mean Higher-High Water
MHW -0.043 -0.14 Mean High Water
DTL -0.221 -0.73 Mean Diurnal Tide Level
MTL -0.222 -0.73 Mean Tide Level
MSL -0.227 -0.74 Mean Sea Level
MLW -0.401 -1.32 Mean Low Water
MLLW -0.442 -1.45 Mean Lower-Low Water
User Specified Elevation         in       relative to   


Note: Data query is limited to a 10 year maximum and 1 month minimum date range when requesting an analysis of 6-minute data


6-minute Height and High Water Analysis
Hourly Height and High Water Analysis
Hourly Height Analysis