We have automatically detected that you're accessing our website from: United States

We have many different websites with the products you find here, customized for your country. If you switch to the website specific to your country, you'll be able to enjoy having your area set as the default domain for all our maps, and your country's most important cities in the forecast overview.

This page in your country version Switch to United States homepage

Do not show this message again

Model charts

COSMO D2 maps Netherlands
Swiss 4x4 maps Netherlands
EURO4 maps Netherlands
ICON EU maps Netherlands
ECMWF maps Netherlands
GFS maps Netherlands

Local models that cover Netherlands

Super HD maps Netherlands
Swiss 4x4 maps Netherlands
Swiss EZ maps Netherlands
Swiss MRF maps Netherlands
AROME maps Netherlands
COSMO D2 maps Netherlands
EURO4 maps Netherlands
ICON EU maps Netherlands
HIRLAM FMI maps Netherlands
HARMONIE maps Netherlands

We have forecast data from several regional models that cover Netherlands. These models have a higher resolution than global models that forecast for the whole world, but the increased computational demands of a high resolution model mean that these forecasts only go a couple days out in time, and are limited to a small area.

The following weather models that cover Netherlands are available on our website: Swiss HD 1x1 (Central Europe Super HD), Swiss HD 4x4 (Europe Swiss HD 4x4), Swiss HD 4x4 (ECMWF) (ECMWFbase Swiss HD 4x4), Swiss-MRF, AROME, COSMO-D2, EURO-4, ICON-EU, HIRLAM-FMI, HARMONIE

Global models with worldwide weather forecasts

ECMWF maps Netherlands
ICON maps Netherlands
GFS maps Netherlands
GEM maps Netherlands
UKMO maps Netherlands
ACCESS G maps Netherlands
ARPEGE maps Netherlands
CMA maps Netherlands
GDAPS/UM maps Netherlands

We have forecast data from a variety of global models that produce forecasts for the whole world, up to two weeks out in time. These models are all generally fairly accurate in predicting large scale patterns/features, but all will become less accurate through time. The ECMWF is generally considered to be the most accurate global model, with the US's GFS slightly behind.

The following global weather models are available: ECMWF 6z/18z, ECMWF IFS HRES, ICON, GFS, GEM, UKMO, ACCESS-G, ARPEGE, CMA, GDAPS/UM

What are weather models?

Numerical Weather Prediction

Weather models, known formally as "Numerical Weather Prediction" are at the core of modern weather forecasts. All the forecast information you see at weather.us is powered by weather models, do what are they and how do they work?

Weather models are simulations of the future state of the atmosphere out through time. Millions of observations are used as initial conditions in trillions of calculations, producing a three dimensional picture of what the atmosphere might look like at some time in the future. Massive computers are used to do these calculations at incredibly fast speeds to enable simulations to cover the entire globe, and extend up to two weeks into the future.

Global vs Regional models

There are two general types of weather models, global models and regional models. Global models produce forecast output for the whole globe, generally extending a week or two into the future. Because these models cover a wider area, and a longer timespan, they’re generally run at a lower resolution, both spatially (fewer forecast points per given area) and temporally (fewer time points get a forecast).

Regional models on the other hand have much higher resolutions, but only cover some part (region) of the globe, and only provide forecasts a couple days out in time. The advantage with these models is that their higher resolution lets them "see" features that the global models miss, most notably including thunderstorms.

Why are there so many models and how are they different?

Many different national weather centers have supercomputers that run weather models. Each of these is slightly different, using different equations to solve for various physical processes that shape our weather patterns. Many of them also have slightly different resolutions, and use slightly different combinations of initial data sources.

These slight differences multiply out through time because the atmosphere is a chaotic system. This also means any errors that the models make in the near term become exponentially larger with time. This is why the forecast for a week from now is far less accurate than the forecast for tomorrow.

Weather modelling centers attempt to control for the influence of chaos by running ensemble systems that each use slightly different initial conditions. Each ensemble "member" then produces a forecast as if its set of initial conditions were correct. This provides some way of quantifying how likely a given forecast outcome is, helping to show forecast uncertainty.