NOAA CO-OPS 8419688

West Sister tide chart

West Sister uses NOAA CO-OPS station Gerrish Island (8419688) for tide predictions, datum MLLW. The station is 1.1 nautical miles from West Sister. Times are the station's local time.

See today's Boat or Nope call for West Sister

Today

Thu, Oct 22

Today's predicted tide, feet above MLLW. High and low marks are the CO-OPS turns.

Hourly points on the curve are a cosine interpolation between NOAA high and low predictions. The high and low times themselves are the CO-OPS values.

This week

High and low tides

High and low tides for the next seven days. Times are station local time. Heights are feet above MLLW.
Day	High	Low	Sun
Thu, Oct 22Today	Rising to high, 8:44 AM8.27 ft Rising to high, 8:59 PM8.62 ft	Falling to low, 2:25 AM1.02 ft Falling to low, 2:46 PM1.17 ft	Rise 7:04 AM Set 5:49 PM
Fri, Oct 23	Rising to high, 9:25 AM8.82 ft Rising to high, 9:45 PM8.91 ft	Falling to low, 3:08 AM0.71 ft Falling to low, 3:32 PM0.57 ft	Rise 7:06 AM Set 5:48 PM
Sat, Oct 24	Rising to high, 10:04 AM9.38 ft Rising to high, 10:28 PM9.16 ft	Falling to low, 3:48 AM0.40 ft Falling to low, 4:15 PM-0.03 ft	Rise 7:07 AM Set 5:46 PM
Sun, Oct 25	Rising to high, 10:43 AM9.89 ft Rising to high, 11:13 PM9.34 ft	Falling to low, 4:28 AM0.15 ft Falling to low, 4:59 PM-0.56 ft	Rise 7:08 AM Set 5:45 PM
Mon, Oct 26	Rising to high, 11:23 AM10.30 ft Rising to high, 11:58 PM9.41 ft	Falling to low, 5:10 AM-0.03 ft Falling to low, 5:43 PM-0.95 ft	Rise 7:09 AM Set 5:43 PM
Tue, Oct 27	Rising to high, 12:06 PM10.56 ft	Falling to low, 5:53 AM-0.10 ft Falling to low, 6:29 PM-1.15 ft	Rise 7:11 AM Set 5:42 PM
Wed, Oct 28	Rising to high, 12:45 AM9.37 ft Rising to high, 12:53 PM10.64 ft	Falling to low, 6:39 AM-0.07 ft Falling to low, 7:18 PM-1.14 ft	Rise 7:12 AM Set 5:40 PM

Source and freshness

Retrieved from NOAA CO-OPS. Predictions stay cached for up to 6 hours, the same window harbor pages use. The page refreshes about every 15 minutes. Retrieved Oct 22, 7:23 PM EDT.

CO-OPS station 8419688 · Prediction request

Use the tide with the forecast

Go / No-Go for West SisterWind, waves, advisories, and this tide station.Forecast widgetPut the harbor call on a marina or club site.Water temperatureNDBC CMLN3 observations.

The same station is the tide reference for Sewards Cove.

Nearby tide stations

Little HarborNew Hampshire · Jaffrey Point · 0.9 nm TrianglesNew Hampshire · Seapoint, Cutts Island · 1.9 nm Back ChannelNew Hampshire · Seavey Island · 2.1 nm Freedom Boat ClubNew Hampshire · Portsmouth · 2.5 nm Godfreys CoveNew Hampshire · Fort Point, York Harbor · 4.6 nm Rye HarborNew Hampshire · Wells · 4.6 nm

Tide chart questions

Where do the West Sister tide times come from?

High and low times come from NOAA CO-OPS station Gerrish Island (8419688). Heights are in feet relative to mean lower low water (MLLW), in the station's local time. This page requests the same predictions product as the West Sister harbor briefing.

How current is this tide chart?

These are astronomical predictions. The page shows when Boat or Nope retrieved them from CO-OPS. The response is cached for up to 6 hours, the same window the harbor pages use, and the page itself refreshes about every 15 minutes.

Does the West Sister tide chart include storm surge or observed water level?

The chart is the predicted tide. When CO-OPS reports a recent measured water level at this station, the West Sister Go/No-Go page compares it with the prediction. This tide page does not add a separate water-level request.

Why is there one tide chart for this station?

Harbors that share station 8419688 use one canonical chart so the same curve is not published as dozens of near-duplicate URLs. The harbor pages for Sewards Cove link here.