Florida Inlet Watch

Know what the inlet is doing before you get there.

The most dangerous inlet conditions come from an outgoing tide running against waves from the ocean: the ebb shortens and steepens the waves until they stand up and break on the bar. Florida Inlet Watch computes that, hour by hour, for 16 inlets on Florida's Atlantic coast, and puts the official National Weather Service advisories right next to it.

FREE FOR EVERYONE • Current index for every inlet: Lower risk, Caution, Hazardous or Extreme, with the reasons in plain words • Official NWS marine advisories for each inlet's zones (Small Craft Advisory, Gale Warning, Special Marine Warning…), with the full text • The NWS coastal waters forecast, as issued • Live NOAA buoys: wave height, swell and wind waves, period and direction • Live winds from coastal stations and airports, with the raw METAR • Today's tides, and today's slack and maximum ebb and flood where NOAA publishes current predictions • Inlet map on the official NOAA nautical chart: wind barbs, wave crests with height and period, and the current running through the inlet, right now

FORECAST SUBSCRIPTION • Hour-by-hour index for the next 48 hours, every inlet • The inlet map for any hour of the next 48: watch wind, waves and the ebb build up • Ebb current, waves on the bar and wind, hour by hour • Daylight hours with the lowest index • Three days of tide and current times

16 INLETS St. Marys Entrance, St. Johns River, St. Augustine, Ponce de Leon, Port Canaveral, Sebastian, Fort Pierce, St. Lucie, Jupiter, Lake Worth, Boynton, Boca Raton, Hillsboro, Port Everglades, Bakers Haulover and Government Cut.

HOW IT WORKS For each wave train forecast offshore (wind sea and up to three swells from NOAA GFS-Wave), the app computes how the ebb changes it on the bar: Doppler-shifted wavelength, wave action conservation, shoaling, and depth- and steepness-limited breaking. It adds wind, wind against the ebb, inlet-specific guidance, and never shows a level below an official advisory in effect.

HONEST ABOUT ACCURACY • Seven inlets use NOAA's official current predictions, as published. • The other nine have no NOAA current station. Rather than guess, the app assumes the ebb may run over a wide window and tells you so: expect more "Hazardous" hours there. • Wave forecasts were checked against the six NOAA buoys along the coast. When a buoy measures bigger waves than forecast, the app raises the forecast — it never lowers it. • No "Lower risk" is shown if advisories or forecasts could not be refreshed: you see "No data" instead of an old level.

IMPORTANT Florida Inlet Watch is not a navigation aid. "Lower risk" never means "safe". Sandbars move, sometimes overnight, and models miss squalls and local effects. Always look at the inlet yourself, check official forecasts and broadcasts, and make your own decision.

Independent app. Not affiliated with or endorsed by NOAA, the National Weather Service or the U.S. Coast Guard. Data: NOAA CO-OPS, NCEP (GFS, GFS-Wave), NWS, NDBC, Aviation Weather Center.

The yearly subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel it in your account settings. Price as shown in the store. Terms of Use: https://gansoft.ch/inletwatch-terms.html Apple standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gansoft.ch/inletwatch-privacy-policy.html

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