Tukuk-OS💨 Storm & Wind
Live wind arrows, weather and ocean waves over the map · click anywhere for detail
Storm & Wind shows the atmosphere as it is right now, over the whole map you are looking at: an arrow for the wind at every point (its length and colour are the speed, its head points where the air is blowing), the weather the model sees (rain, thunder, snow, fog), and — click any spot, sea or land — the exact wave height, temperature and pressure there. Pan or zoom and the field redraws for your new view; the sky you see is a real numerical forecast, not a decoration.
Where the wind and the waves come from
The numbers are the output of numerical weather prediction — the same physics-based models that national weather services run, served free and without a key by Open-Meteo. Each arrow is the wind the model resolves for a point about every 11 km; the sea state comes from the wave model on the same grid. Our server asks for your whole visible rectangle in a single call and reuses it for a few minutes, so your browser only ever talks to tukuk.org and a crowded map costs the provider one forecast, not one per person.
How to read it
A wind direction is named for where the wind comes from: a north wind blows from the north toward the south, so the arrowhead points south. The colour runs from pale blue (calm) through amber and red to violet as it builds past gale and storm force — the bands follow the Beaufort scale, the old mariner’s measure, and each arrow’s popup gives the force number too. Over the open ocean the click panel adds the significant wave height (the average of the highest third of waves) and their period; on land that row honestly says there is no sea here, because there isn’t. A forecast is a forecast: it is the best current model run, not a guarantee, and it is situational awareness — never a substitute for an official storm warning.