Inundation Analysis Tool


8664699 North Charleston, Ashley River

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 2021-11-23 00:00:00.0 and 2022-07-21 14:46:00.0


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 -0.085 -0.28 Mean High Water
DTL -0.977 -3.21 Mean Diurnal Tide Level
MTL -0.986 -3.23 Mean Tide Level
MSL -0.835 -2.74 Mean Sea Level
MLW -1.887 -6.19 Mean Low Water
MLLW -1.955 -6.41 Mean Lower-Low Water
NAVD88 -0.868 -2.85 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