One model cell near each place
Each marker is anchored to a catalogued location and represents the nearest regular latitude/longitude ECMWF grid cell. It is not adjusted for a resort's elevation or terrain.
Global · source-bounded
This independent view maps a current 15-day ECMWF Open Data IFS signal at the nearest 0.25° model cell near each listed mountain. It is a planning cue, not observed snow, base depth, lift status, terrain access, road advice, or a skiability call.
There is no verified resort-level “mega season” forecast here. A major marker only emphasizes a signal within this current source window.
Read this first
The map uses ECMWF's accumulated snowfall-water-equivalent field only to classify source windows. It publishes labels instead of resort snowfall amounts, and it makes no elevation adjustment from the model cell to a mountain.
Positive and major labels are deliberately limited to the current 15-day model window. For current operations, conditions, closures, roads, or safety information, use a resort's official notices.
Current source snapshot
Open the mountain map with the expanded ski-area catalog, or start with current snow-model signals. Search smaller ski areas, find nearby mountains and open point forecasts. External map tiles load after you choose an option.
Method & attribution
Each marker is anchored to a catalogued location and represents the nearest regular latitude/longitude ECMWF grid cell. It is not adjusted for a resort's elevation or terrain.
The worker differences daily cumulative source values to classify a positive or major model signal. The public map does not convert that source field into resort snow-depth or accumulation claims.
A source snapshot has a short freshness boundary. If it expires or cannot be validated, this page withdraws its map instead of retaining a stale view or borrowing data from another model.
Source context: ECMWF Open Data documentation · CC BY 4.0 licence · direct resort notices · U.S. seasonal precipitation source