En français

ECCC logo

TOC > MSC data > RDPS

Data and products of the Regional Deterministic Prediction System

The Regional Deterministic Prediction System (RDPS) performs physical calculations to produce deterministic forecasts of elements of the atmosphere from the present day to 84 hours in the future. Elements of the atmosphere include temperature, precipitation, cloud cover, wind speed and direction, and humidity. This product contains the raw numerical results of these calculations. Geographic coverage includes Canada and the United States. The horizontal spatial resolution of the data is 10 km. Data is available for 33 vertical levels. Forecasts are performed four times a day.


How to access the data

This data is available on the MSC Datamart data server service as well as MSC GeoMet:

An overview and examples to access and use the Meteorological Service of Canada's open data is available.


The end-user licence for Environment and Climate Change Canada's data servers specifies the conditions of use of this data.

MSC Open Data Service Usage Policy

The MSC Open Data Service Usage Policy determines what constitutes an acceptable use of MSC Open Data services and provides users best practices for optimal use.


The metadata of the Regional Deterministic Prediction System are available on the Open Government Portal.


List and links to the products available for this dataset :

Forecast maps

Aerological analysis maps

Aviation products

Astronomy products

Technical documentation


The chronology of changes to the Regional Deterministic Prediction System (RDPS) is available in the changelog.