This is a pre-passage source and decision desk, not a current forecast or clearance to depart. The map is centred approximately on the area, not on your route or a forecast-zone boundary.
Check the current tropical warning separately from the routine marine forecast; neither an island app nor a model animation substitutes for the responsible coastal bulletin. Reef entrances also require current chart and local-authority information.
1. Primary sources
Open current bulletins and warnings for every sea area on the route. These links are starting points, not a promise that each covers the whole location; if unsure, identify the issuer through WMO–IMO.
2. Route and local effects
Distinguish Atlantic approach swell from conditions inside the island banks.
For Turks and Caicos, separate an Atlantic approach and reef-bank entrance from conditions inside the bank.
The government forecast portal is local context; NHC offshore guidance covers a wider scale. Verify latest local entrance and shallow-water information independently.
How to use this source set
Start with the warning, then the marine text for the exact named area. If the route crosses a zone boundary, obtain both bulletins. Note issue and valid times, wind units and the meaning of wave height. Where a link opens an agency portal, navigate to its current marine product; a homepage is not itself a forecast.
Compare with an exposed station or buoy if available. Check its position and observation time: a sheltered station does not overturn a warning for an open channel. If a bulletin is missing or stale, identify the issuing service via WMO–IMO and defer the decision until current information is available.
Before-passage check
- Mark departure, exposed legs, arrival and feasible diversions; find the responsible named marine areas for each.
- Check warnings, issue and valid times; assess conditions when you expect to reach each leg, not only at departure.
- Compare wind and gusts, waves and swell, visibility, thunderstorms and local effects; do not infer a strait from a sheltered harbour.
- Compare recent observations where available, noting their time and exposure; a mismatch calls for another check.
- Set the next bulletin check, a reassessment trigger, an alternative and a backup communication channel.
Model map — optional
Windy is a third-party model display, not the issuer of official warnings. Choose a layer and check its valid hour and model run. Nothing loads until you click.
Without JavaScript, open the map separately.
If connectivity fails
Before departure, save the current official text bulletin and warning with issue time. Arrange another way to receive updates, such as an appropriate coastal broadcast, NAVTEX or satellite channel. A saved map cannot replace new warnings.
How to choose weather tools · All sailing areas
Scope: Source list assembled 25 September 2026; check its freshness and coverage before use. This public area guide is not a current personalised forecast, navigational notice service or safety verdict. Personalised forecasts with AI and experts are in closed testing; public booking is not open. The skipper makes the decision.
Separate the Caicos Bank from the Atlantic approach
A passage to Providenciales or between island groups needs distinct rows for open Atlantic exposure, the chosen approach and inside-bank travel. Retrieve the dated local forecast through the government maritime entry and inspect the underlying issuer. For a longer arrival add the applicable offshore marine text. Do not assume that a local land forecast or an embedded widget supplies warning coverage over the whole passage.
- Turks and Caicos maritime weather entry — Government entry for local forecasts; check embedded issuer and timestamp.
- NHC marine products — Broader Gulf, Caribbean and tropical Atlantic/Pacific context; confirm the current product at the issuer. Direct product verification is limited; obtain the current issue from the issuer.
Weather and navigation notices must be read together
The maritime authority's notices are a separate check for restrictions, aids to navigation and reported hazards. Pair them with current charts and local entrance information rather than converting a broad wave forecast into a reef-access decision. Arrival visibility matters to the practical approach plan; reduced wind does not repair missing depth, position or passage information. Record the source and age of each local report.
- Turks and Caicos marine notices — Navigation hazards and restrictions, not a weather model. Direct product verification is limited; obtain the current issue from the issuer.
- Turks and Caicos maritime weather entry
Recheck the arrival, not only the island forecast
For an arrival from the Bahamas, compare the ocean-facing approach under both planned and slower progress. If the entrance information is incomplete or daylight is lost, revisit the arrival strategy before the last available waiting point. A sheltered forecast inside the bank cannot resolve that offshore approach gap. Keep a reliable means of receiving the next local and tropical update, especially when connectivity is uncertain.
- Turks and Caicos maritime weather entry
- Bahamas Department of Meteorology — Official national entry point, radar and forecast links; no pass-specific current guarantee.
Editorial review of this material: 27 September 2026. This date concerns the page content; check current forecast issue times and validity at the original sources.