Changelog — Salish Tides

2.1.0 2026-08-19

Added

Tap locate and the map follows your boat — stays centred as you move, zoom, or rotate. Tap it again, or just drag the map, and it lets go
While it's following, speed and direction read off your boat instead of wherever the crosshair used to be sitting
Wander outside the charted area and it stops following, instead of hanging at the edge pretending it still has you

2.0.1 2026-08-16

Changed

Zoom into a narrows now and the current field doesn't turn into a solid block. It used to cram every particle it had into that sliver of water on screen — the density stays even now, so you can still read a direction
Where the current data runs out mid-channel, the field fades out now instead of stopping dead at a hard line
The crosshair reading no longer goes blank over a pass. At Second Narrows it showed nothing at all with current drawn right underneath, because the model's grid was too coarse to know that spot was water. It reads off the same coastline you see on the map now, so the number and the water agree — park it on the beach and it's still blank, just for the right reason
The current at a pass flows through the real channel now, not a circle. Dodd turns 37° between its two ends, but the flow used to be painted flat in the station's one flood direction — 40° off, pointed straight out through Mudge Island. It follows the channel's own centreline now, holding its speed through both mouths and easing off where the channel widens, same as the real thing
A station's number now only paints the pass it was measured in, not a flat 600 m circle. That circle used to spread the station's fastest reading across water that doesn't move that fast — about double the real flow, at eight of the eleven passes we can check. Expect a tighter patch of fast water at the narrows, and less drawn field around a few of them — no data beats wrong data

Fixed

The map no longer flips between live and offline models as you pan across one passage. At Dodd it used to read live at the north end and offline at the south, and every particle on screen changed the moment you crossed the line — that call was riding on five live cells happening to land in the viewport, against none a kilometre away
Panning doesn't redraw the current anymore. The field used to be sliced into cells hung off the corner of your screen, so the same water landed in a new cell after every pan and came out a touch faster or slower. It's pinned to the world now — pan all you like, a given patch of water reads the same
When a station's own numbers don't add up, the card says so instead of guessing. At a few stations CHS's published peak fights its own curve badly enough that we don't trust the correction — speed now reads "no estimate" instead of a number the line below it contradicts
Those same moments used to draw the slack dot — "no current" — when what we meant was "we don't know". At Sechelt alone, 173 of the 205 affected peaks are over 1.5 knots. It's a question mark now, not a false calm
A current running backwards from the station's own prediction gets flagged at any speed now, not just the big ones

2.0.0 2026-08-14

A big jump: the last build most of you have is 1.3.3, so everything below landed at once. The headline is the narrow passes — the map used to draw a current through them that it couldn't back, and now it doesn't.

Added

Satellite's back in Settings. Place names come from the offline map, so labels keep drawing over cached tiles when the signal drops — the imagery itself still needs a connection
Tide predictions for Oak Bay and Finnerty Cove
About 2,900 patches of real water were being drawn as land. Twenty-nine of them run over 4 knots and one hits 7.2 — they're on the map now

Changed

The narrow passes read what CHS says they read. Dent, Seymour, Gillard, Beazley and Hole in the Wall were showing a third to a half of the real current, because the model underneath can't resolve a channel narrower than its own grid. Where the two disagree, the station wins
Where the model can't back what it's drawing, the map now draws nothing. At Dodd, Sechelt and First Narrows what it had was noise in the shape of a current. The station markers still carry the real numbers, so the passes keep their speeds and their slack times
Speeds at the rapids are honest now. Arran read 14.5 knots against CHS's 11.8 — eight tidal constituents can't hold water that violent, so the extra piled into the peaks
Every current sits about 110 m closer to where it actually is. You'll notice it most at Seymour, where the water changes fast across the channel
The offline map download is down from 69 MB to 27 MB. Coastlines, labels, boundaries and inland water are untouched — we dropped the inshore parks, forests and golf courses you weren't navigating by
On Satellite the current field draws over the imagery, clipped to the real coastline, and the map swaps basemap and colour mode in one go instead of flashing through the old theme

Fixed

The live current field was running about half an hour ahead of its own label. It came straight off the forecast's hourly average, which is centred mid-hour — so it's on the time the timeline is showing now. You'll notice it most around a turn, when the water on screen had already swung
Park the crosshair a few kilometres off Nakwakto and it would tell you 14 knots, or dead calm, depending on which way it was wrong. It answers for the water it's actually over now
CHS marks some lulls "weak and variable" — that's it declining to name a moment. We were calling all 1,302 of them slack and handing you a time
Launch with no signal on Satellite and you'd get an empty frame. It falls back to the bundled map for that session now, and leaves your saved choice alone
Corrected tide predictions reach you when you update the app. Before, only brand-new stations came through

1.3.3 2026-08-10

Fixed

Make the narrow-pass markers easier to land the crosshair on — they needed near-pinpoint accuracy unless you were zoomed well in, while a nearby tide station still keeps its own card

1.3.2 2026-08-10

Fixed

Show the narrow-pass markers as soon as you zoom in a little, rather than only when zoomed in close — they were especially hard to reach on iPhone

1.3.1 2026-08-09

Added

Show "Slack" on the tide card during the stand at either end of the tide, instead of flipping between flood and ebb

Changed

Show current-station markers only when zoomed in, so they no longer crowd nearby tide stations

Fixed

Make the tide card's flood/ebb reading follow the chart above it — it could previously disagree with the curve for hours at a time
Stop the crosshair from opening a nearby current station's card when you park it on a tide station

1.3.0 2026-08-07

Changed

Extended the map north up the entire BC coast to SE Alaska — past Namu, Bella Bella, Prince Rupert, and Ketchikan. The tidal-current forecast reaches these northern waters, and now the chart does too, so there's a map under it everywhere. The bundled basemap hugs the coastline to keep the download small.

1.2.1 2026-08-05

Fixed

Blend the narrow-pass currents smoothly into the surrounding water instead of fading out at their edges

1.2.0 2026-08-05

Added

Tidal currents for the narrow passes — Dodd Narrows, Seymour Narrows, Active Pass, Porlier Pass, and more. The ocean model can't resolve these tight channels, so they now use the Canadian Hydrographic Service's own predictions: the current flows through the pass on the map, and putting the crosshair over a pass (or tapping it) shows its speed now plus the next slack and maximum flood/ebb — all offline.

Changed

One info card for both tide and current stations: the crosshair over a pass shows that pass's currents; elsewhere it shows the nearest tide station's chart.

1.1.4 2026-08-04

Changed

Let the map pan to every edge of the charted area, including southern Puget Sound

1.1.3 2026-08-04

Changed

Grey out the current style toggle with a note while Reduce Motion is on, so it's clear arrows are shown on purpose

1.1.2 2026-08-04

Fixed

Show animated current particles again in Low Power Mode — the current style toggle no longer sticks on arrows

1.1.1 2026-07-30

Changed

Let the map pan further north, so you can centre on the currents above Vancouver Island and up Queen Charlotte Strait

1.1.0 2026-07-20

Added

Tap the data-source pill to see where the live currents come from

Changed

Keep the map inside the charted area, so panning and zooming can't wander off into blank space
Name the live source in the pill: "SSC live model" for SalishSeaCast

Fixed

Disable "locate me" when your position is outside the charted area or no location is available — it used to look active but do nothing

1.0.2 2026-07-17

Fixed

Fixed the timeline staying in "Now" mode after you pick a date from the calendar

1.0.1 2026-07-17

Changed

Reorganized Settings into clearer appearance sections
Added a first-run disclaimer noting the app is a planning aid, not for navigation

Fixed

The crosshair reticle now draws above tide-station markers instead of behind them
Dialogs now match the active Day/Night theme

Removed

Removed the manual live-data toggle — live data now turns on automatically when you're online

1.0.0 2026-07-17

First public release. Salish Tides is an offline-first map of tidal currents and tide heights for the Salish Sea — built for the helm, and designed to keep working when you have no signal on the water.

Added

Full-bleed nautical map of the Salish Sea with an always-on crosshair that reads out current speed, direction, and tide state at any point you touch.
Real-time surface currents from the SalishSeaCast ocean model when you're online, with a live "Offline" indicator when you're not.
On-device harmonic current models so the map keeps predicting with no signal — a native ~500 m model across the full Salish Sea, extended up the outer coast to SE Alaska.
Animated current field: GPU "comet-streak" particles advected through the flow, with a static-arrow style that turns on automatically under Reduce Motion or Low Power Mode.
Flood / ebb indicator that learns the local flood axis from the tide curve.
Tide heights and high/low predictions for a curated registry of Salish Sea stations, with a tide chart and a phase card at the nearest station.
Scrubbable timeline covering ±48 hours, snapping to the hour, with a 12- or 24-hour clock setting. All times display in Salish Sea local time.
Day and Night themes that swap the whole look, including the basemap — follow the system appearance or override it.
Map compass and locate controls, and optional display of your own position on the chart (When-In-Use location, never stored or transmitted).
No account, no analytics, no tracking — the app collects nothing and runs fully offline once installed.