Experimental ADDS

Weather Products
Advisories
- AIR/SIGMETs
Observed Products
Forecasted Products
- Convection
- Winds/Temps
- Turbulence
- Prog Charts
- Icing
- TAFs
These products are available online and run directly within your web browser.
Desktop Apps
Flight Path Tool

Provides all ADDS weather products in a single interactive display. Slices through 4D datasets horizontally at a flight level, vertically along a flight path, and in time. Includes meteorograms at surface points.
- Learn More
- Launch Application
HEMS Tool

Provides weather of interest to low altitude pilots in an interactive display. Interpolates 3D weather variables to AGL altitudes. Includes street-scale basemaps.
- Learn More
- Launch Application
These "all-in-one" applications run outside of the web browser and your system may require additional configuration before you are able to launch them.
Data Services
Text Data Server

The Text Data Server enhances and complements the ADDS web site by providing flexible and queryable access to real-time METARs, PIREPs, TAFs, and AIR/SIGMETs data.
- Learn More
In addition to the weather products and desktop applications, ADDS also provides service level access to selected real-time data.

Background

The Prog Charts page provides the current analysis, 12-hour forecast, 24-hour forecast, 36-hour forecast and 48-hour forecast for the contiguous United States.

The current analysis chart is produced every 3 hours.

The data for the 12-hour and 24-hour forecasts are produced four times a day at approximately 0300, 0900, 1500, and 2100 UTC.

The data for the 36-hour and 48-hour forecasts are produced twice daily at approximately 0600 and 1800 UTC.

Significant Weather Charts (SIGWX) are also available for:

High Level (FL250-FL630)

Mid Level (FL100-FL450)

Low Level (SFC-FL240)

Help

Background