NOAA tide tables at 150 years and counting

Explore how this popular product has evolved
December 21, 2015
The rise and fall of the tides play an important role in the natural world and can have a marked effect on maritime-related activities. The image aboves shows the NOAA San Francisco Tide Station, in operation for more than 150 years.

Tide predictions play an important role in coastal communities across the Untied States. They allow both commercial and recreational boaters who work, live and recreate along our coasts, to safely navigate through high and low tides each and every day. Furthermore, tourist publications, coastal newspapers, and fishing guides all contain tide and current predictions that originate from NOAA’s data. Learn how NOAA and its predecessor agencies have played an integral part in the evolution of how tide tables have been produced and calculated over the last 150 years.