Be Prepared for the Demanding Coastal Environment

The old adage is “any harbor in a storm”. Well, tap into well over two decades worth of experience monitoring and predicting the micro-scale impacts that dominate the weather in ports, harbors, and near the coast. Integrating this experience with real-time data from our Coastal Mesonet and proprietary WF-WRF forecast model, we’ve experienced unparalleled success with generating highly accurate location-specific forecasts for many of the world’s most challenging locations, including the San Francisco Bay, Hampton Roads VA, Boston Harbor, and beyond.

How it works


Get a Free Trial to TempestOne

Enhance situational awareness with our high-density Tempest Weather Network including data from the WeatherFlow ProNet, an unparalleled industrial-grade coastal weather station network, and all installed Tempest Weather Stations in your areas of interest. Access online, in-app, or within your existing ecosystem via API. Give decision-makers the complete weather information they need to better anticipate impacts.


Install Tempest Weather Stations

Enhance the Tempest Network available to you by installing weather stations where you need them. Expand the micronet in and around your port, harbor, or coastal area of interest. Collaborate with your coastal constituents to install stations at their homes, docks, and other opportune locations. Deploy our flagship Tempest weather system – featuring 5-minute deployment and dramatically improved forecasting and hazard prediction – at a fraction of the cost of competing solutions.


Add Enhanced Lightning Safety

Right out of the box, each Tempest Weather System will alert when lightning enters the area. Level up by adding precision Tempest Lightning Network data and alerts to ensure safety in outdoor areas. Map exact lightning strike locations, get lightning alerts and all clear notifications, access detailed strike data, and even verify past lightning strikes.


Our forecasters blend in a unique mix of small-scale factors to generate their forecasts, including topography, sea surface and air temperatures, currents, swell and wind waves, land and sea breezes, fog, and even tides to provide pinpoint predictions.

TempestOne Weather Station

starting at $389

per unit

Build your own weather network. Bundle discounts available.


  •   7 sensors including sonic anemometer
  •   Simple to deploy, maintain, and instantly network

Nearcast™ Data and Display

  •   AI-powered point-specific forecasting
  •   Historical data - daily high/low
  •   Single user Tempest App access
  •   API Access to your Tempest(s)
  •   TempestOne trial available
  •   Proximity lightning detection
  •   License for commercial use

Business Premium

  •   Priority support
  •   Extended burn-in and testing
  •   Commercial Warranty
  •   Expert Meteorological Consulting available

Nearcast Data and Business Premium Service included for one year ($60 value)

Buy Now

Bulk pricing


starting at $999

per year

Level up your Tempest weather network with pro services designed to inform and protect.

  •   Discounts on TempestOne Weather Stations
  •   Premium warranty and support on Stations
  •   Nearcast data and display
  •   Multi-location, AI-powered location-specific forecasting
  •   Historical data - 5-minute data
  •   Single or multi-user access
  •   API Access to all data from all Tempests
  •   Tempest data use in third-party software
  •   Map all owned Tempests Stations and Observing Network Data
  •   Multi-model premium spatial forecasts
  •   Expert Meteorological Consulting available
  •   Precision lightning strikes and alerts
  •   Priority customer support
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