EXIT 25 · MOS · Weather Trader / ECCC

GEM-MOS

Station-corrected GEM guidance. Its available training era and model version matter when interpreting regional or seasonal skill.

Open guidance ↗Market recap ↗Station model analysis ↗

What to inspect

Follow successive runs for the same target date. Compare error, bias and interval coverage on shared stations and dates. A sharper forecast is useful only when its uncertainty remains reliable.

Issued local-standard-day forecasts, where archived before the cutoff

Updates and availability

See issued guidance for available cycles; collection and upstream release times differ

Latest cycle on file: 2026101712
Issued UTC: 2026-10-17T21:00:43Z
Issue age: 6.3 hours

Age describes the retained issue, not a guarantee that the upstream feed is current.

Station and neighborhood context

Use the station page to compare diurnal evolution, nearby observations and weather regimes. The linked page contains all available sources; availability varies by station.

How to read the record

Raw models, corrected station products and downscaled grids forecast different things. Market recap shows its decision cutoff, settlement basis and coverage. Missing forecasts are unavailable, never zero. Inclusion in this directory or recap does not imply inclusion in a trading blend.

Existing model verification and cycle archive ↗

EXIT 08 ↗Global

GEM / GDPS

The Canadian global forecast. Native guidance and GEM-MOS have separate station error records.

Environment and Climate Change CanadaExplore guidance and its verification record

EXIT 55 ↗Downscaled

GEM-DS 2.5 km

Canadian GDPS (GEM global) guidance corrected against URMA on a 2.5 km grid with a station layer, the same method as ECMWF-DS and GFS-DS. Three-hourly to 240 hours from the 00 and 12 UTC runs. Native-window verification is distinct from full-day market verification.

Weather Trader / ECCCIssue record: 2026-10-17T20:36Z

EXIT 56 ↗Downscaled

GEM-DS map explorer

The GEM downscaled map feed on the 2.5 km URMA grid, three-hourly to 240 hours. Its gridded products and history are available in the explorer; no full-day station-market score is inferred from map colors.

Weather Trader / ECCCExplore guidance and its verification record