GET Run Information

This endpoint returns information for a specific model run, including which forecast hours are currently available, whether upper-level variables are available for a given forecast hour, and when each forecast hour was generated.

WM‑5c valid time

For WM‑5c, the valid time of a forecast is forecast_zero + forecast_hour , NOT initialization_time + forecast_hour .

WM‑5c runs every 20 minutes (initialization_time), but valid times stay on a fixed 3‑hourly cycle (forecast_zero). Multiple runs can share the same forecast_zero as later runs assimilate newer observations while keeping valid times stable.

Alternatively, you can use the time or valid_at (NetCDF/ZARR) parameter to request or use forecast data by valid time directly.

See Time in Forecasts for full details.

Query parameters

Response parameters

Examples
content-type: application/json