Inundation Analysis Tool


8774513 Copano Bay, TX

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 -1.707 -5.6 NOS Major Flood Threshold
NOS Moderate -1.707 -5.6 NOS Moderate Flood Threshold
NOS Minor -1.707 -5.6 NOS Minor Flood Threshold
MHHW 0.0 0.0 Mean Higher-High Water
MHW -0.001 0.0 Mean High Water
DTL -0.059 -0.19 Mean Diurnal Tide Level
MTL -0.06 -0.2 Mean Tide Level
MSL -0.056 -0.18 Mean Sea Level
MLW -0.118 -0.39 Mean Low Water
MLLW -0.118 -0.39 Mean Lower-Low Water
NAVD88 -0.31 -1.02 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