why is it so foggy today

The fog today is primarily due to a dense fog advisory issued by the National Weather Service. The formation of fog typically involves local weather conditions where moisture in the air condenses near the ground, often influenced by calm winds, high humidity, and temperature changes overnight. There is also a weather pattern involving a mix of fronts and moisture that is causing this fog in various regions. This dense fog advisory is in effect until mid-morning today, which explains why it is foggy currently.