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Severe Weather Charts

Attention

These map products will be decommissioned by the end of 2026. We invite you to migrate to MSC AniMet, a tool that allows users to interact with MSC open data and create customized animated maps for any region of the world. The resulting animations can be downloaded and shared with a permalink. If you have any questions, please contact us.

REGIONAL DETERMINISTIC PREDICTION SYSTEM (RDPS) - Summer

Wind1

00 UTC
06 UTC
12 UTC
18 UTC

Stability and Moisture2

00 UTC
06 UTC
12 UTC
18 UTC

Energy, Wind Shear and Helicity3

00 UTC
06 UTC
12 UTC
18 UTC

1. Wind, Tropopause and 250 hPa heights 
2. Stability indices, Dewpoints, Water Content 
3. Buoyant energy, Helicity, Storm Severity Index

00z Production Run (Normally updated between 5:00 and 6:00 UTC), 12z Production Run (Normally updated between 17:00 and 18:00 UTC)

REGIONAL DETERMINISTIC PREDICTION SYSTEM (RDPS) - Winter

Pressure, Thicknesses and Precipitation Types

250 hPa, wind, moisture4

00 UTC
06 UTC
12 UTC
18 UTC

4. chart is updated daily October to April only

T+hh refers to the forecast’s time interval (hh), in hours, from the hour T of the model’s initial run time. The hour T is indicated, in Universal Time, at the top of each column.

Features

Colour-coded weather alerts

Learn more about weather alerting in Canada

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