SailFlow: Marine Forecasts

Whether you are racing, sailing or just cruising, you want and need the best possible forecasts and live wind reports… and SailFlow has them! We have deployed over 65,000 proprietary Tempest Weather Systems, giving you real-time local weather right where you sail. With exclusive SailFlow stations on near shore markers, buoys, piers, at yacht clubs and key waterfront spots, we have a terrific number of local sailing areas covered. Our Tempest Rapid Refresh Model delivers the most accurate Nearcast predictions to our customers. We supplement our proprietary data with information from government agencies including: NOAA, NWS, and bring in reports sets including the AWOS, ASOS, METAR, and even CWOP. SailFlow creates a complete view of the weather with radar, forecast maps, and customized alerting.
Why you should download SailFlow:
- Coastal observations from proprietary Tempest Weather Systems along with all public domain marine forecasts and reports (NOAA, NWS, METAR, ASOS, CWOP) including all major airports creating over 125,000 unique stations.
- Our exclusive Tempest Weather Systems deployed at marinas and beaches with haptic rain sensors, sonic anemometers, along with local barometric pressure sensors provide ground truth observations.
- Apple Watch compatibility
- Live wind from our systems provides a better windy conditions flow map – augmented by current station reports with advanced quality control.
- Our Proprietary AI-enhanced Nearcast provides enhanced forecasting for temperature, wind gust, speed, direction, humidity, dewpoint, precipitation rate, probability of precipitation, and cloud cover percentage which is perfect for sailing.
- Public domain forecast models including High Resolution Rapid Refresh (HRRR), North American Mesoscale Forecast System (NAM), Global Forecast System (GFS), Canadian Meteorological Centre Model (CMC) and Icosahedral Non Hydrostatic Model (ICON).
- Free subscription for unlimited wind notifications/alerts with customizable thresholds to email, text, or in-app.
- Create your own favorite station list to keep an eye on your go-to weather stations at all your marine and sailing spots.
- Maps - Live and Forecasted Wind, Forecasted Temperature, Radar, Satellite, Precipitation and Clouds, as well as Nautical Charts.
- National Weather Service (NWS) Marine Forecasts & Marine Warnings / Alerts.
- Additional weather parameters:
- Tides charts
- Wave height, wave period
- Water temperature
- Sunrise / sunset
- Moonrise / moonset
- Historical wind statistics
- Windy days per month
- Wind direction distribution
Want more weather?
- Upgrade to Plus, Pro, or Gold membership to gain access to more weather stations and forecast locations.
- Access our exclusive ultra high-quality array of meteorologist-sited pro stations at top coastal locations, including our professional hurricane-proof stations
- Unlock access to SailFlow’s second-to-none meteorologist-written hyper-accurate pro forecasts written daily for sailing hotspots coast-to-coast.
- Detailed weather at points of interest to coastal residents and property owners near the ocean, rivers, and other bodies of water.
- On the water features
- Sea surface temperatures
- Sea surface currents
- Detailed historical wind statistics
- Historical wind speed average by year

What else can you do?
- Join the Tempest Weather Network!
- Get a Tempest Weather System for your club, dock, or backyard.
Want more information?
Support at: help.weatherflow.com/hc/en-us/categories/200419268-iKitesurf-iWindsurf-SailFlow-FishWeather-WindAlert
Connect with Tempest:
- facebook.com/tempestwx
- twitter.com/tempest_wx
- youtube.com/@tempestwx
- instagram.com/tempest.earth
Contact Tempest: help.weatherflow.com/hc/en-us/requests/new
Website: tempest.earth
By purchasing a subscription or downloading SailFlow you agree that you have read and accept our Privacy Policy and Terms of Use.
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