Enhanced Flight Hazards

Improve safety and flight operations efficiency with Enhanced Flight Hazards

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Enhanced Flight Hazards (EFH) is a patented forecasting system for turbulence, icing, and thunderstorms. It offers 29 levels of EFH data for use in flight planning, tracking, and in-flight updates on electronic flight bags, directly available through DTN or our trusted partners.

Features Aviation Flight Path


Granular, patented forecast data for turbulence, icing, and thunderstorms.

Our EFH data offers ready-to-use, state-of-the-art Eddy Dissipation Rate (EDR) turbulence forecasts. The data easily integrates into flight planning, tracking, and electronic flight bag (EFB) applications to optimize the route.

  • Unique, aircraft type-specific turbulence and icing forecasts.
  • Data available in various formats and through various delivery methods.
  • EFH is available directly or through our partners/system integrators for flight planning, tracking, and EFBs.
  • Up to 29 flight levels of data are available, with specific models for North America and global coverage in high resolution —13×13 km/hourly, up to 36 hours out.
  • DTN offers data layers every 2,000 feet below FL300 and every 1,000 feet (each flight level) above FL300.

Airline Stewardess


Reduce the number of inflight incidents related to weather.

With EFH, you can provide a safer and smoother flight for crews and passengers by avoiding turbulence, thunderstorms, and icing.

  • Reduce the number of in-flight turbulence incidents by increasing awareness of weather severity in the flight planning and in-flight phases.
  • Ensure more efficient flight and ETOPS plans by finding the best alternative routes or flight levels around turbulence, icing, and thunderstorms.
  • EFH offers a wide range of flight levels, providing actionable insights that ensure the safety of cabin crews and passengers during the climb and descent phases of flight.

Expert videos


Yes. EFH is available in several formats that are suitable for EFB application integration. DTN also has partnerships with most major EFB application suppliers.

Yes. DTN offers EFH in formats suitable for flight planning, such as GRIB2. Similar to EFBs, DTN has partnerships with most flight planning tool providers.

Yes. DTN offers two versions: one specific domain for North America and one for global coverage.

For the North American domain, DTN updates the data every hour. For the global domain, updates are every 6 hours. For our Rapid Update Convective forecast (strong convective weather), updates are every 10 minutes.

Yes. DTN offers data layers every 2,000 feet below FL300 and every 1,000 feet (each flight level) above FL300, for a total of 29 available levels.

DTN offers, unique, aircraft type-specific turbulence and icing forecasts, as turbulence affects E175s differently than A330s, making type-specific data critical.

Yes. Part of EFH data is the Rapid Update Convective forecast, which monitors strong convective weather and updates every 10 minutes with a 1-hour forecast window.

DTN has invested in years of research with some of the the top scientists in the aviation weather community to develop world-class turbulence, icing and thunderstorm forecasting and bring solutions and insights directly to pilots, flight operations managers, and flight dispatchers.

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