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Telltale Sailing

@telltale_sailing

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The sailing app with live wind and current in one place, paired with the most accurate forecasts and world class race analysis.

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The tide in the San Juans never sits still 🌊

Six spots where the current bends, splits and races between the islands, from Deception Pass (6.7 knots under the bridge) to the corner where Haro Strait meets Juan de Fuca. At every stop, watch the ebb slow to slack and then flood back the other way.

Modelled currents from NOAA's Salish Sea model (SSCOFS) for 12 August 2026, drawn by Telltale.

Which pass have you been flushed through? 👇

#SanJuanIslands #SalishSea #Sailing #Tides #PNW taken in San Juan Islands, WA by @telltale_sailing

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10 hours ago

Typhoon Champi is heading for Guam 🌀
See how it formed, and @noaa's wind forecast.

A week ago it was a loose cluster of storms near the Marshall Islands. This shows how it formed, from real weather data, and NOAA's forecast of its winds as it reaches the Mariana Islands.

The eye is expected to pass very close to Guam early Sunday morning.

Stay safe, Guam, Rota and Saipan. Follow NWS Guam for official warnings.

💛 The American Red Cross is responding on Guam and in the Northern Marianas. To help, give to Red Cross Disaster Relief at redcross.org, call 1-800-RED CROSS, or text REDCROSS to 90999.

#TyphoonChampi #Guam #Typhoon #Marianas #Weather taken in Guam by @telltale_sailing

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19 hours ago

Know where the race is won. ⛵

✅ Plan your course from your boat's real ORC polar, with the wind and tide
✅ A start timer that knows the favoured end of the line
✅ Your instruments on your Apple Watch or Garmin
✅ Live targets from your polar, so you know when you're fast
✅ A debrief that shows exactly where you gained and where you lost

Free on iPhone and Android 👉 telltaleapp.ca/get

#sailboatracing #sailing #regatta #orcracing #pnwsailing by @telltale_sailing

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a day ago

See the wind before you sail. 🌬️

✅ Live readings from real weather stations, right on the map
✅ A forecast that keeps correcting itself with those readings
✅ Scrub two days ahead
✅ Currents through every pass, so you ride the tide
✅ Routes planned from your boat's own ORC polar

Free on iPhone and Android 👉 telltaleapp.ca/get

Where are your forecasts always wrong? 👇

#sailing #sailinglife #sailboatracing #weatherforecast #pnwsailing by @telltale_sailing

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a day ago

Ever wondered what the wind does around an island? 🌬️

This is two days of trade winds over Fiji (30 Sep to 2 Oct). Viti Levu's mountains, up to 4,344 ft (1,324 m), split the flow and leave a calm shadow that stretches far downwind. In its lee, Nadi airport's wind even turned around and blew from the west.

Sailing Fiji? The lee of the big islands is where the breeze goes soft, and the gaps between them are where it squeezes and builds.

Wind and currents like this, for wherever you sail: telltaleapp.ca

#sailing #fiji #tradewinds #weather #windmap taken in Fiji by @telltale_sailing

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a day ago

You can’t outrun this. 8 knots of tide chases you one way and then right back 🌊

This is one day of tide in BC’s Gulf Islands, 12 August 2026. Every few hours the Salish Sea squeezes through a handful of narrow passes, runs flat out, stalls at slack, then pours back the other way.

Predicted peaks that day (CHS):
Porlier Pass 8.4 kn
Dodd Narrows 8.2 kn
Gabriola Passage 7.3 kn
Active Pass 5.9 kn, right on the BC Ferries route

Most cruising sailboats motor at 6 to 7 knots. Get the timing wrong and you go backwards, so sailors plan their whole day around a few quiet minutes of slack.

Which pass have you run? Tag the friend who always times it wrong 👇

Plan your slack windows with live currents and tides at telltaleapp.ca (link in bio).

Modelled currents for illustration, not for navigation.
Data: ECCC CIOPS-SalishSea, CHS predictions and NONNA depths, Copernicus DEM, NRCan, © OpenStreetMap contributors. Contains information licensed under the Open Government Licence – Canada.

#datavisualization #pnw #sailing #tides #hydrology dataviz oceancurrents oceanscience oceanography satisfyingvideos naturephysics boating sailinglife salishsea scicomm by @telltale_sailing

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6 days ago

The tide in the Gulf Islands runs faster than you can paddle, and it changes direction four times a day.

The Strait of Georgia and the channels behind the islands are always trying to level out, and the only way through is a handful of narrow passes.

Dodd Narrows, just south of Nanaimo, floods north at up to 9.5 knots, about 18 km/h. The official sailing directions say to go through only at slack water, the few quiet minutes when the tide turns.

Gabriola Passage runs even harder on the ebb, up to 9 knots. Porlier Pass, between Valdes and Galiano, pours into the Strait at up to 10 knots on the flood.

Active Pass is the busy one: up to 8 knots through a fairway about 370 m wide, shared with the big ferries between Victoria and Vancouver. You can meet three of them in the pass at once. On a strong flood it boils with rips and a big clockwise eddy turns in Miners Bay. On the ebb, the rips disappear.

This was the 12 August spring tide: a new moon, two days after the moon's closest approach, so the tides ran big.

The currents are modelled, not measured. Open water is from the CIOPS-SalishSea model; speeds in each pass follow Canadian Hydrographic Service predictions, and the shapes inside the narrows are illustrative. Not for navigation. Live currents and tides at the link in bio.

Currents: ECCC CIOPS-SalishSea · Pass speeds: CHS · Depth: CHS NONNA, GEBCO · Terrain: Copernicus DEM, NRCan · Shoreline © OpenStreetMap contributors · Contains information licensed under the Open Government Licence – Canada

#gulfislands #salishsea #nanaimo #gabriolaisland #galianoisland #mayneisland #vancouverisland #bcferries #britishcolumbia #explorebc #pnw #sailing #boating #tides #oceancurrents #dataviz #scicomm taken in Active Pass by @telltale_sailing

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6 days ago

We had a great time at the #fraserriverlightship2026 by @royalvanyc !

Amazing conditions and such a fun course!
Some hiccups to learn from but we came 7th of 13 in ORC1. Doing our best!

This video is from our instruments and AIS as logged by Telltale!
You can view the race at https://telltale.racing/races/fraser-river-lightship-race-2026 taken in Vancouver, British Columbia by @telltale_sailing

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12 days ago