A heat dome currently impacting France is forecast to move northwards, bringing exceptionally warm temperatures to Belgium and the Netherlands starting tomorrow. This phenomenon occurs when a high-pressure system stalls, trapping warm air and preventing the influx of cooler air. Three processes contribute to further warming within the dome. Forecasts indicate the heat dome will be centered over the Benelux region on Wednesday and Thursday, with Friday expected to be the hottest day. The system is being slowly pushed eastward by a low-pressure area over the Atlantic Ocean, with heat expected to spread to Germany, Denmark, and Poland over the weekend and into next week. Residents are advised to prepare for unusually high temperatures.