Free alerts · official NOAA and NWS data
Pick your tide station. We email you only when something happens there: a marine warning, or an unusually high or low tide. No digest. No spam.
NOAA tide station
No active NWS marine or coastal alerts here
Times PST · NOAA source · curve interpolated from NOAA highs/lows
The next 24 hours at Columbia River entrance
NOAA predicted water level and the real sun position, hour by hour.
Live, not a mockup
We just checked the official NWS feed for ten bellwether stations, from Galveston to Seward. If one has an active marine alert, it is shown here exactly as the email would read it: what, when, where, and a link to the official product.
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Live · National Weather Service
Every active NWS marine and coastal alert of the kinds we send, matched to the NOAA tide stations inside it. Tap a station to see its tides.
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How it works
Any of the NOAA tide prediction stations, from the Battery in New York to Unalaska. We start with the one nearest you.
One click in the confirmation email. Nothing is sent before that.
A short email when the NWS issues a marine or coastal alert for your station, or NOAA predicts an unusually high or low tide. At most one a day, quiet overnight, warnings excepted.
Coverage
Every point is a NOAA CO-OPS tide prediction station. Drag the globe, then tap a point to watch it.
Why trust it
Tide predictions and water levels from NOAA CO-OPS. Alerts from the National Weather Service. Every alert links to the official product.
No paid tier, no ads in alerts, no card required.
An email only when something happens at your station. The weekly summary is off unless you turn it on.
Every email has a one-click unsubscribe link that works immediately.
Salt Tidings is an independent service. It is not affiliated with, endorsed by, or an official product of NOAA or the National Weather Service. It is not for navigation or safety-of-life decisions. Always check official NOAA tide tables and NWS forecasts before you go out.
FAQ
Only when an event happens at your station. Most days that means nothing. We send at most one alert per station per day, hold non-urgent alerts during quiet hours (9 PM to 7 AM station time), and let warnings through.
A predicted high at or above NOAA's minor flood threshold for the station (or 0.5 m above mean higher high water where NOAA has no threshold), or a predicted low at or below 1 foot under MLLW.
Small Craft Advisories, Gale, Storm and Hurricane Force Wind watches and warnings, coastal flood and storm surge, high surf, rip currents, dense fog, and Special Marine Warnings. You can switch any of them off under "Alert options".
Yes. The numbers come from NOAA's tide prediction API for the station shown, fetched within the last few hours, and the alert status comes from the NWS active alerts feed, refreshed every few minutes. Where NOAA publishes a live water-level sensor, we show that reading too.
Yes. Use "Change" in the signup form to search and add up to 20 stations.
No. Salt Tidings is free.
Click unsubscribe in any email. It takes effect right away.