Meteo — weather, tides, and alerts

The Meteo tab brings together everything you need to read the sea before

you trust it.

A segmented bar at the top has three sections:

Marine Weather — Events — Meteogram.

Weather pins

Above the segmented bar sits a strip of circular weather avatars — one

for every location you have pinned for weather. Each avatar shows the sky

glyph from that location's saved report plus how long ago the report was

fetched. The ring colour is the age at a glance: white ring while the report

is fresh (under ~3 h), amber as it ages, grey once it is stale (older than

12 h).

"My Position" appears by itself. The very first weather the app

fetches for your vessel is saved as a report automatically — a My

Position avatar leads the strip from your first launch, no tap needed,

and it keeps following your vessel's weather fetches as you sail. Delete

it and it stays gone until you re-add it with +.

Tap an avatar to select it — no pop-up: the dashboard below switches

in place, and all three segments now read from that pin's saved report.

Marine Weather shows its headline conditions, hourly strip, alerts,

and refresh / remove actions; Events its weather alerts; Meteogram

the full forecast chart for the pin's coordinate — not your vessel's.

Everything is stored on the device, so it appears instantly and works

offline; the age keeps counting up so you always know how old what you're

reading is. Tap the My Position avatar to return to the classic

current-location dashboard.

The selected avatar glows green, with a shimmer that orbits faster

the windier it is there — a calm anchorage idles, a gale spins. Its

small green scope badge jumps straight to the SeaTracker chart,

centred on the pin.

The + avatar appears only while the My Position entry is absent and

brings it back.

New pins start filled, not blank. A pin dropped near your vessel

reuses the weather the app already fetched — the report shows instantly,

correctly aged to when it was actually downloaded, and only re-fetches

when it is genuinely stale.

Every report names its place. The report header shows a

human-readable location under the raw coordinates — *"Kassiopi, Ionian

Islands · Greece" on land, the sea area ("Aegean Sea"*) offshore — the

same label the chart's location badge uses, so a pin dropped mid-passage

still tells you where the forecast applies.

Refresh Report inside the sheet re-fetches on demand; the app also

quietly re-fetches any report older than an hour when it launches.

Remove Weather Pin deletes the location and its saved report.

Weather pins also appear as round badges on every chart — SeaTracker and

the SafeAnchor anchor-watch chart alike — with a compact

temperature · wind · age caption, and they grey out as their report ages.

You can hold up to 12 pins; pinning a harbour, marina, or anchorage from

its detail sheet lands here too (see

[the chart page](chart.md#weather-pins-chart)).

Marine Weather

A live dashboard for the nearest station, or any station you save as a

favorite. At the top of the dashboard is a range picker

(12h · 24h · 3d · 7d); whatever you pick drives every chart and the

hourly carousel at once. This range picker is free — there is no Pro gate

on it.

Station card

The card headline shows your location (place and country). The source

weather/tide station is named just beneath it — that station is often

offshore or some distance away, so the headline tells you where the reading

actually applies, while the sub-line tells you which station it came from.

Current conditions strip — a row of tiles across the top of the card:

AIR, FEELS, SEA, and HUMIDITY, beside the current sky

icon and description.

Source badges — a row of pills showing where the numbers come from:

the tides provider (NOAA or Stormglass), the weather provider

(Open-Meteo or Stormglass), a LIVE / CACHED badge, a PREDICTED

badge when the reading is filled in from forecast, and the vertical

datum (e.g. MLLW) when known.

Stat strip — when the station was last Updated, the Distance

to it in nautical miles, and the Lat / Lon the reading is for.

Overflow menu (the … button) — Refresh Forecast, Change

Station, Save Station, and Show Map / Hide Map.

Station map — collapsible (open it from the overflow menu). Pan it and

a centre crosshair shows the coordinate under the cross; tap Fetch

Data for This Location to pull the forecast for that exact point, not

just the fixed station pin. Your own vessel and the station are both

marked.

Charts and carousel

All of these follow the range picker.

Hourly carousel — a scrollable hour-by-hour timeline; its length

follows the range you picked (12 h up to 7 days).

Wind & Gust — an interactive trend chart with sustained-wind and gust

traces, Beaufort colouring, Strong-breeze (F6) and Gale (F8) reference

lines, a peak-gust marker, and wind-direction arrows along the top.

Precipitation — hourly chance of precipitation, each hour classified

as rain / drizzle / snow / fog / thunderstorm, with a 50% "likely" line.

Sea State — waves, swell, and ocean current in one card. Each row

shows the value plus a small "sets toward" compass arrow.

Pressure & Visibility — an interactive barometric chart with the

1013 hPa standard line, a 1000 hPa "unsettled" line and shaded band,

ridge/low turn markers, and a 3-hour tendency badge — plus the current

visibility reading.

Tides — an interactive tide curve reconstructed from the

high/low waters, with labelled H/L markers, day/night shading, and a

live "Now" dot. A summary above it shows the next High, the live

Now height (with a Rising / Falling trend), and the next Low.

Every chart has a drag scrubber: drag across it and the readout above

the chart follows your finger; lift off to snap back to "Now".

--

Where the readings come from

The Meteo tab pulls live marine data through AnchorQueen's backend, which

fetches per request and caches the result (the CACHED badge tells you

when you're seeing a cached pull). The providers:

Tides — NOAA tide predictions (relative to the MLLW datum) in

NOAA's coverage zones; Stormglass elsewhere, and as a fallback when

NOAA can't be reached.

Weather & waves — Open-Meteo for current conditions, wind, gusts,

pressure, precipitation, waves, swell, and current; Stormglass as the

fallback.

History — the Open-Meteo archive, used to fill the comfort and

forecast history shown in the Comfort detail sheet.

The tide curve you see is reconstructed from the high/low waters the

provider returns — AnchorQueen fills in the smooth shape between each high

and low (the analogue of the mariner's "rule of twelfths"), so you get a

continuous, scrubbable curve rather than just a list of times.

Events

At the top of the Events screen is a Comfort Meter — a ring showing a

one-glance comfort score for your current conditions, with the leading

factor named beside it (e.g. "Moderate Sea State", "+ 2 other factors").

Use it as the quick "is tonight workable" answer.

Tap the meter (or the chart button next to it) to open the Comfort

detail sheet, which plots your recent comfort history and the

forecast ahead so you can see whether conditions are improving or

deteriorating.

Below the meter is the list of active weather alerts for your area —

gale warnings, storm watches, small-craft advisories. Each alert shows its

severity and message, and is color-coded by severity (severe / moderate /

advisory). When nothing is active you'll see a "No active events" state

instead.

Live weather map

The Live segment (marked with a pulsing green dot) opens an animated,

online weather map: pick a field layer from the left rail — Temp, Rain,

Wind, Pressure, Radar — and add the Arrow (wind arrows) and Isobar

(pressure contours) overlays on top of any of them. The bottom timeline

plays or scrubs the multi-day forecast; a floating timestamp rides the

slider thumb.

A prominent Live Weather Map card at the top of the Meteo tab opens

the same map full-screen.

Your saved weather pins appear as amber markers. Tap one to slide up

its hourly forecast panel — the same forecast grid used everywhere else

in the app — synced to the map's clock: scrubbing highlights the matching

hour, and tapping an hour seeks the map to it. Pull the panel down to

dismiss it.

Tapping a rainy spot on the Rain layer offers View details, which

saves a weather pin there and opens its report.

The live map needs an internet connection; everything else in Meteo keeps

working offline from the last saved reports.

Meteogram

A separate, GFS-style graphical forecast in stacked panels, one variable

per row:

Wind direction

Wind speed and gusts

Temperature (air + feels-like)

Pressure (sea level)

Relative humidity

Precipitation

A current-conditions summary card sits on top, and — when the station has

marine data — a horizontal Marine Conditions strip below the panels

shows hourly wave height, direction, and period. Time runs along the

bottom; turn on the value inspector (crosshair) from the … menu, then

tap or drag to read exact values at any time. The same menu lets you save or

share the meteogram as a PDF or image.

Time-range filter & plan tiers

Above the panels is a time-range filter — 6h · 12h · 24h · 3d · 7d.

Unlike the Marine Weather range picker, this filter is Pro-gated above

the free tiers:

Free captains get the short-term outlook — 6h, 12h, and up to

24 hours.

Pro unlocks the 3-day and 7-day planning windows.

On a Free plan the 3d and 7d buttons show a lock; tapping either opens

the Store so you can upgrade.

Where the data comes from

The providers behind Marine Weather, Events, and the Meteogram are listed

above under [Where the readings come from](#oceanographic-engine); the full

partner list is in

Settings → Data Sources & Partners.

Reading the weather for a decision

Weather is the single biggest safety factor at sea. A few ways to use these

screens to make a go / no-go call:

Pick a wind window. On the Wind & Gust chart (or the meteogram's

wind panel), look for a stretch where both the wind line and the gust

trace sit below your comfort limit. The Strong-breeze (F6) and Gale (F8)

reference lines tell you at a glance when it's getting serious.

Watch the pressure. On the Pressure & Visibility chart, a falling

tendency badge ("Falling quickly", "Falling very rapidly") and the

shaded sub-1000 hPa band flag an approaching front or squall.

Compute your clearance. Drag the tide curve to the time you'll

pass, read the height, and add it to the charted sounding depth. If the

chart shows 1.8 m and the tide reads +0.6 m, you have 2.4 m of water —

subtract your draft for the margin. Heights are relative to the station's

datum (e.g. MLLW), shown on the station card.

Time shallow passages for slack water — the brief lull around high or

low tide — to avoid the strongest current. The Sea State card's current

"sets-toward" arrow shows which way it's running.

Use Events as a gate. A gale or storm alert means stay in port; a

Moderate or Rough comfort score means conditions that will challenge a

novice crew.

Pairing with Merconi. When scouting a dive site in

Merconi, look for low wave height and an offshore wind

(blowing land-to-sea) for the flattest, clearest water.

If something goes wrong

The station card is blank — no station could be reached for your area.

Open the … menu and Change Station to pick a saved one, or open the

station map and Fetch Data for This Location somewhere nearer the

coast.

A chart says "not available" — that variable wasn't in the provider's

response for this station; try Refresh Forecast from the … menu.

The badge reads CACHED — Meteo needs a connection to refresh; the

last values are shown until you reconnect. See

Troubleshooting: offline behavior.