Calendars

Open a station → Calendar. You get high and low water on a month view. Event heights use the same datums as the chart — see MLLW and what the numbers mean. On hyperlocal gauges and on SECOORA, NERACOOS, and USGS stations, those events come from our predictions — a calendar that typically has not existed for that site. Some stations also show shallow windows (when water is likely too low for a boat near that gauge), plus related events such as road flooding or bridge-too-low when that station has them. Those windows use measured bottom and bridge datums where they are set — today on Sentient Things stations, and the same feature for NOAA, SECOORA, NERACOOS, and USGS. Calendars can be public or private.

Tide Calendar. Subscribe to Calendar keeps a live feed in Apple Calendar, Google, or Outlook.

Subscribe (live calendar)

1. Open the station calendar.
2. Tap Subscribe to Calendar (calendar icon).
3. Choose Apple / iCal, Google, Outlook, or Microsoft 365 as offered.
4. Finish in that calendar app. Events keep updating in the background.

The feed can create many events. If the calendar looks busy, hide the Tide Alerts calendar in that app — the subscription can keep updating even when hidden.

You can view the in-app calendar without signing in. Subscribe uses the system calendar or browser handoff for that provider.