Inundation Analysis Tool


8574070 Havre De Grace, MD

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

Note that this is a historical station and data may be available between 1972-11-17 00:00:00 and 2005-09-07 23:59:00


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
MHHW 0.0 0.0 Mean Higher-High Water
MHW -0.104 -0.34 Mean High Water
DTL -0.373 -1.22 Mean Diurnal Tide Level
MTL -0.393 -1.29 Mean Tide Level
MSL -0.385 -1.26 Mean Sea Level
MLW -0.682 -2.24 Mean Low Water
MLLW -0.746 -2.45 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