FMI's own forecasts, taken seriously. The Finnish Meteorological Institute publishes an unusually good set of open data and publishes it free, with no key. This site renders six of its products on one instrument: the forecaster-edited grid behind the national service — updated by meteorologists through the day, out to ten days — the raw 2.5 km MEPS run underneath it, the ECMWF ten-day outlook on a Europe frame, the WAM Baltic wave model, the NEMO sea model, and the national radar composite every five minutes.

Navigate by place, not by zoom. The quarters, the nineteen maakunnat, towns from Hanko to Utsjoki, the named sea areas of the marine forecast — each is a framing you press a button for, and the finest model that covers the place answers. Flipping between models holds the valid time, so what changes on screen is the forecast, not the camera.

Product	Grid	Runs	Reach	Fields
FMI Edited	~7 km, Scandinavia	through the day	T+240	17, incl. P(thunder), fog and precipitation form
MEPS	2.5 km (MetCoOp)	8 × day	T+66	21, incl. visibility, CAPE, 850/700/500/300 hPa
ECMWF	~15 km subset, Europe	2 × day	T+240	10, the synoptic set aloft and at the surface
Baltic Waves (WAM)	~3 km, whole Baltic	4 × day	T+66	wave height, direction, swell
Baltic Sea (NEMO)	~2 km, whole Baltic	daily	T+120	sea temperature, salinity, currents
Radar	~1 km composite	every 5 min	now	rain rate, measured

Absolute colour scales. Every ramp is pinned to fixed values — temperature from −40 to +35 °C, wind banded on the Finnish scale (navakka 8, kova 14, myrsky 21, hirmumyrsky 33 m/s), wave height on a scale that tops out at the Baltic's own measured maximum. A loop therefore shows the weather changing, never the palette re-fitting itself, and the same colour means the same number on every model.

A value under every pixel. The rendered maps are reversible: point anywhere and the readout reports the number the colour encodes, and the city labels print the model's own values, sampled on the native grid before any resampling. MSLP carries real isobars, traced from the full-precision field rather than from the picture.

Straight from the source. Everything arrives as GRIB2 from FMI's open-data download service (the radar as 16-bit GeoTIFF from the open WMS), is decoded, warped and colour-mapped once, and served as static imagery. No screenshots of anyone else's maps, no rescaling per frame, no account, no tracking.

All model and radar data are © the Finnish Meteorological Institute, published as open data under CC BY 4.0; ECMWF fields are ECMWF data republished by FMI; MEPS is run jointly with MET Norway and SMHI as MetCoOp. This site is not affiliated with FMI, and it is not a source of weather warnings — those are issued at ilmatieteenlaitos.fi, and nothing here supersedes them.