The Royal Netherlands Meteorological Institute (KNMI) has issued a yellow warning for dense fog affecting nearly all provinces in the Netherlands tonight and tomorrow morning. The visibility may drop below 200 meters, creating hazardous driving conditions. Motorists are advised to slow down and increase their following distance. This warning follows earlier alerts and is expected to remain in effect until 10:00 AM tomorrow. Incidents related to the fog have already been reported, including accidents and restrictions on vessels in the Wadden Sea.