weerswaarschuwing

Weerswaarschuwing is a formal notice issued by official meteorological authorities to alert the public and authorities to potentially hazardous weather conditions. The purpose is to provide advance information so people can take precautions and authorities can prepare emergency measures.

In the Netherlands warnings are issued by the Koninklijk Nederlands Meteorologisch Instituut (KNMI). In Belgium, warnings come from the Royal Meteorological Institute (KMI/RMI). Warnings are based on current observations, short-term forecasts, and risk assessments of weather phenomena such as heavy rain, storms, strong winds, hail, or snow.

Warnings use a color-coded system: Code geel (yellow) indicates that weather conditions may pose problems and that people should be cautious; Code oranje (orange) signals a real and significant risk with possible disruption; Code rood (red) denotes severe or life-threatening conditions requiring urgent action. Some regions may also use a different nomenclature or temporary advisories, but the three colors are the common standard for moderate to extreme hazards.

Dissemination and impact: Warnings are published via official websites, media, social media, and alert apps, and may be echoed by local authorities, transport operators, and emergency services. People are advised to follow the instructions in the warning, adjust travel plans, secure loose objects, and stay indoors when advised.

Relation to forecasts: A weerswaarschuwing is distinct from routine weather forecasts; it is a specific alert about imminent or ongoing danger. It serves to trigger protective actions at the individual, community, and governmental levels.