no navegable
Although we are confident that our tide predictions are useful they are WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. WeatherOnline assumes no liability for damages arising from use of this program OR of any 'harmonics data' that might be distributed with it.
 
Accurate tide predictions can only be made if the 'harmonics data' for the relevant location is good. Unfortunately, the only way the maintainer of that data has of knowing when it is bad is when someone with access to authoritative tide predictions or observations reports a problem.
 
You should not use this program or any data files that might be distributed with it if anyone or anything could come to harm as a result of an incorrect tide prediction. NOAA, UKHO and similar agencies in other countries can provide you with certified tide predictions if that is what you need.
Tide predictions do not incorporate the effects of tropical storms, El Niño, seismic events, continental drift, or changes in global sea level.