Inundation Analysis Tool


8772479 Freeport Entrance Jetty, TX

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 1977-10-20 00:00:00 and 2020-06-15 00:01:00


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 -0.042 -0.14 Mean High Water
DTL -0.26 -0.85 Mean Diurnal Tide Level
MTL -0.247 -0.81 Mean Tide Level
MSL -0.239 -0.78 Mean Sea Level
MLW -0.452 -1.48 Mean Low Water
MLLW -0.521 -1.71 Mean Lower-Low Water
NAVD88 -0.41 -1.35 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