Where do the warnings in WeatherPro come from?

WeatherPro has its own warning system with alerts for various extreme weather conditions. When extreme heat, frost, snow, storms or thunderstorms are forecast for any of your favourite locations at any point in the coming three days, alerts will be shown on the forecast screen. Some of the warnings are broken down into levels to indicate the intensity of the weather condition. For example, warning levels for storms are as follows:

Level 1 = High winds, force 8-9 on the Beaufort Scale
Level 2 = Strong gusts of wind, force 10-11 on the Beaufort Scale
Level 3 = Gale force winds, force 11-12 on the Beaufort Scale