On the 12th day of mistYmuse
we welcome Advent Calendarists,
with severe weather in the news
remember, fogs are thicker than mists,
I didn’t know that was the only difference
until just now reading the website World Atlas.
World Atlas: If visibility is less than 0.6 miles it is referred to as fog; if visibility is above 0.6 miles, it is called mist.