List official avalanche bulletins across resorts (relayed)

The fleet view over the same relayed bulletins getResortAvalanche serves — one request instead of hundreds. v1 covers the United States, Canada, Switzerland, France, Sweden, Austria, Italy, Norway, Germany, Spain (Val d’Aran / Lauegi only) and Andorra. Ratings use the EAWS 2018/19 scale (5 = Very high).

Two modes, one item shape. With slugs, you get an answer for every slug you asked about, in the order you asked, including the ones with no bulletin — this is the batch lookup. Without slugs, you get a feed of resorts that currently have a bulletin, ordered by danger rating (highest first, unrated last).

slugs, country and warningService select which resorts are considered; minDanger filters the results. That split keeps meta.counts honest: counts always describe the considered pool, so they explain what the filters did.

A resort's absence from data carries no safety meaning. meta.counts reports where every considered resort landed (bulletin, outside_forecast_zone, no_current_bulletin, country_not_covered, location_unknown, relay_not_permitted, resort_not_found) and meta.coverageNote states this in full. A two-item response drawn from 230 considered resorts must never be presented as "two dangerous resorts, the rest are fine". Note that minDanger excludes bulletins with no published rating, which are bulletins that exist — meta.counts.rated makes that visible.

Each item's bulletin field is identical to the single-resort endpoint's data, so an item maps onto that contract without translation. A null dangerRating inside a bulletin means the issuer published no rating — never a substituted or inferred value.

A 503 means SnowSure could not reach its resort store. It is never served as an empty list, which on this endpoint would read as "nowhere has a bulletin".

The response body is fully described by the canonical JSON Schema (draft 2020-12) at https://www.snowsure.ai/.well-known/schemas/avalanche-list-v1.json, which the payload also self-advertises in its schema field. schemaVersion versions this payload contract independently of info.version, and independently of the single-resort avalanche contract.