Inundation Analysis Tool


8637712 Jamestown Wharf, VA

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 -0.36 -1.18 NOS Major Flood Threshold
NOS Moderate -0.36 -1.18 NOS Moderate Flood Threshold
NOS Minor -0.36 -1.18 NOS Minor Flood Threshold
MHHW 0.0 0.0 Mean Higher-High Water
MHW -0.054 -0.18 Mean High Water
DTL -0.341 -1.12 Mean Diurnal Tide Level
MTL -0.348 -1.14 Mean Tide Level
MSL -0.345 -1.13 Mean Sea Level
MLW -0.641 -2.1 Mean Low Water
MLLW -0.681 -2.23 Mean Lower-Low Water
NAVD88 -0.306 -1.0 North American Vertical Datum
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