CO-OPS recently determined that water level data from Vancouver (9440083) contained an error due to the conversion of pressure to water level in our database. This error resulted in water level measurements several centimeters higher than actual, and impacted data products from March 27, 2002 to August 4, 2021. Water level products from August 4, 2021 to present, including real-time data, are correct. We are currently working on correcting the historical water level data and downstream products and aim to have them updated by 2024. We will provide a notification once the historical data products have been updated. Any data products downloaded from this time will need to be re-downloaded. If you have any questions, please send an email to Tide.Predictions@noaa.gov
and we will get back to you as soon as possible.