How are weather forecasts made?

Creating a weather forecast is no easy task, it requires complex mathematical equations, an understanding of basic physics, and an understanding of meteorology concepts.

Any forecast begins with the current state of the atmosphere. It's important to examine observation data including surface observations, satellite imagery, radar, radiosonde data, upper-air data, wind profilers, and aircraft observations. Compiling this data is a good starting point for a forecast.

We use weather models to create short and long term forecasts. We use three different models for short term weather and eight additional models for short and long term forecasts. Most weather models are created by government-run meteorological agencies including Environment and Climate Change Canada, the U.S. National Weather Service, the U.K. Met Office, the Australian Bureau of Meteorology and others.

By compiling all this data, we can create a short and long term forecast for your area. The weather forecast for today is over 95 percent accurate. Accuracy decreases over time and anything past seven days is only correct about half the time.