data api · Europe

ECMWF IFS ENS Forecast, 15 day, 0.25 degree

time-optimized · Global · variable subset · 0.25° · 0-360h (0-15 days) · every 24h Ensemble weather forecasts from the ECMWF Integrated Forecasting System (IFS), transformed into Zarr format by dynamical.org.

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What's in it

Data offered docs-verified: Ensemble weather forecasts from the ECMWF IFS (variable subset; individual variables not enumerated in docs)
Coverage docs-verified: Global · Forecast lead times 0-360h (0-15 days); archive period not stated in docs
Resolution docs-verified: 0.25° spatial; temporal resolution not stated (forecast lead steps not specified in docs)
Update frequency docs-verified: Every 24h
Formats docs-verified: Zarr
Access llm-inferred: Public; anonymous HTTPS/S3 access via data.source.coop. Licence: see product README (not stated in docs)

Useful for

Use cases llm-inferred: Rainfall and temperature forecast inputs for 0-15 day site works or construction weather-window planning · Ensemble spread as an uncertainty indicator alongside short-term flood or drainage risk checks · Global forecast context for UK catchments, using the 0.25° grid as a coarse meteorological input
Audience llm-inferred: flood consultants · hydrologists · drainage engineers · civils programme planners

Limitations

Constraints llm-inferred: Variable subset only; the variables included are not listed in the docs · Forecast horizon limited to 0-360h (0-15 days) · Global 0.25° grid, not UK-specific; no temporal resolution stated · Archive/historical time span not stated · Version v0.1.0; store listing also contains test and backfill Zarr stores (vbackfill-test-0 to 7, vpara0), so store paths may be unstable · Licence not stated in docs; README only points to external dynamical.org catalogue

Licence: see product README
Authentication: Public; anonymous HTTPS/S3 access via data.source.coop
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 14/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Verified via Source Cooperative API /api/v1/products/dynamical (public product, updated 2026-07-24).

Metadata observed 14/10/2026 · research sweep: manual-2026-10-15 (source.coop)