How it Works


Step One: Curate Massive Amounts Of Data

We gather critical weather data from the Tempest Network, a large and growing dataset that starts with 55,000 Tempest stations and includes over 60,000 other surface weather stations. This data is then combined with sources such as satellites, radar, government, and private sources. Finally, these data are curated; aided by comprehensive quality control and quality metrics systems; for use in our proprietary analysis, numerical weather prediction (NWP) and artificial intelligence (AI) forecasting, and decision-making tools.


Step Two: Apply Powerful Data Science

We apply machine-learned behavior to our powerful AI forecast models. Combined with proprietary observations, this results in weather forecasts that are more accurate than any other source. Current conditions and historical data from the Tempest Network are combined with the best available NWP forecasts to train the AI models. Continual verification monitors and tunes these models to enhance forecast accuracy.


Step Three: Deliver Actionable Information

Validated data is delivered via powerful mobile and web applications, SaaS tools, and our API, so that clients can plan for any type of weather impact from anywhere. Whether you’re a manufacturer that needs to forecast productivity, a wind power generator that needs to prepare for a gusty frontal passage, or even the U.S. military in need of repositioning an aircraft carrier - we can help.

The Tempest Advantage

Our ability to leverage the sheer number and quality of stations in the Tempest Network enables us to provide a clearly better local measurement of conditions now and, using machine learning, paint a more accurate picture of the future. The more Tempest systems that are located in an area, the more impact the data can have and the more we are able to make a significant difference. It’s this vast dataset that drives our Nearcast Technology.

“WeatherFlow-Tempest has pioneered a new approach to weather observing and forecasting that benefits all of our customers and partners,” WeatherFlow-Tempest's Chief Science Officer, Dr. Marty Bell explains. “We have data and tools that no one else has, enabling us to deliver more accurate and actionable weather information. From individual Tempest owners and app subscribers to our professional clients, every single customer can leverage better data to make better decisions.”

Nearcast Technology has many moving parts. Here are some highlights:

  • Continuous Learning: A sensor level monitoring and calibration microsystem.
  • Atomic Quality Control: The quality control that is done on every sensor observation collected by the Tempest ecosystem.
  • Buddy Quality Control: A microsystem to identify correlations between stations to understand neighborhood representativeness.
  • AI Model Development and Training: Our automated continuous AI model development and tuning process.
  • AI Forecasting: The microsystem that generates hourly AI forecasts at each observation location.
  • NWP Forecasting: Numerical Weather Prediction forecasting grids that we run for areas of high interest where high resolution matters.
  • Weather Anywhere: The microsystem that allows us to infill spatially between our superior point forecasts.
  • Quality Reputation: A microsystem that continuously scores observations and forecasts which informs us of the value of the data at every observation location.

Find Our More

Our experts are available to answer questions on our Nearcast Technology and how it can benefit you.

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