data api · United States · Europe

Weather Observations

A collection of weather observations in Icechunk format. Data sources vary, but mostly from NOAA/EUMETSAT/ECMWF/MetOffice. Data includes radiosonodes, weather stations, and ocean observations.

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What's in it

Data offered docs-verified: radiosonde observations · weather station observations · ocean observations · AMDAR · GNSS · GOES East CONUS · GOES GLM grid East · GOES West Pacific/US · IGRA v2 16-level upper-air · Loon · Metop-SG MetImage · Metop-SG MWS · Metop-SG RO · MRMS CONUS · SondeHub flights · UK marine · OpenSky open data · AIRMETs · SIGMETs
Coverage llm-inferred: United States and Europe (per entry regions); dataset names include CONUS, GOES East/West Pacific, and UK marine · AIRMETs 2022-01-01 to 2026-04-01 and SIGMETs 2005-01-01 to 2026-04-01 (from Parquet file names)
Formats docs-verified: Icechunk · Zarr · Parquet
Access docs-verified: Public visibility; anonymous HTTPS/S3 access via data.source.coop (per entry); licence: see product README (not stated in docs)

Useful for

Use cases llm-inferred: Upper-air radiosonde (IGRA) profiles for atmospheric context in climate or weather baseline reports · UK marine observations for coastal or estuarine metocean context in civils and FRA-adjacent work · Historical weather observation time series for climate-risk baselines in drainage or flood studies
Audience llm-inferred: hydrologists · climate analysts · GIS analysts · data engineers

Limitations

Constraints llm-inferred: Mostly US and NOAA-sourced; UK-specific content appears limited to uk_marine.icechunk · Licence not stated in docs; see product README · Very large files (opensky_open_data.parquet is 115.71 GB) · Requires Icechunk/Zarr-compatible client tooling · No resolution or update cadence stated

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/bkr (public product, updated 2026-06-23).

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