FAQ’s

UPDATE – January 2021 DTN has introduced a new radar and future radar layers for all of the existing geographical areas that we support. Full details about the service, including supported operations and parameters, and a list of the available layers be found in the Get Capabilities operation.   Content “Get Map” Layer Name Description

The GRIB2 0.5 degree data set is sourced from the US NOAA/NWS GFS model. NOTE: DTN no longer supports the Legacy Flight Hazards, those products have been removed from these packages. Forecast Content Below is a summarization of the flight planning data content provided for each forecast period and for each grid, where: Abbreviation Description

Forecast Content Below is a summary of the flight planning data content provided for each forecast period and for each grid, where: Level – Pressure level (hPa) FL – Flight Level (100’s of feet AMSL unless otherwise noted) U Wind – North component of wind (m/sec) V Wind – West component of wind (m/sec) Temp

The GRIB 1.25 degree data set is sourced from the US NOAA/NWS GFS Model. The ‘thinned’ dataset means that the longitudinal points on the grid are ‘thinned’ as the polar regions are approached. Forecast Content Below is a summary of the flight planning data content provided for each forecast period and for each grid, where:

Forecast Content Below is a summarization of the flight planning data content: Parameters and Levels SFC 850 700 600 500 450 400 350 300 250 200 150 100 Max Trop U Wind X X X X X X X X X X X X X X X V Wind X X X X X X

The following charts consist of upper-air wind and temperature forecasts at selected flight levels.  These graphics are typically updated shortly after 0400UTC, 1000UTC, 1600UTC, and 2200UTC each day. To download spreadsheet, click here WAFC ID FORECAST PERIOD FLIGHT LEVEL REGION ICAO AREA MAP PROJECTION PWAB07 06HR FL630 NORTH ATLANTIC H PSG PWAB15 06HR FL450 NORTH

GIF Files from the US Aviation Weather Center (KKCI) The following graphics products have black and white versions: High-Level Sig Weather Low-Level Sig Weather As separate products, they have their own distinct file name names based on file extension. The file name format is as follows: DX[pppp][mmddyy][hh].GIF Where: pppp = product identifier mm = month

DTN also distributes selected black and white graphics from several World Aviation Forecast Centers (WAFC). These products are distributed to customers via FTP or LDM. Significant Weather Charts Winds/Temps Charts

A variety of aviation graphics are now produced in a black and white version in addition to the color versions. These products are distributed internally for display in AviationSentry Online, and externally to customers via FTP. The information in this document pertains to those files distributed via FTP. Graphics Files The following graphics products have

DTN is elated to share the next product in our Flight Hazards Forecast suite to help operators mitigate the risk of turbulence on their fleet, our Rapid Update Turbulence Forecast. DTN’s Rapid Update Turbulence Forecast is a ‘NOWcast’, tactical forecast tool for users to understand the potential of Convective Turbulence in relation to their assets.