12-28-19 St. Louis: Quick update on dense fog potential this AM. K.

Good Saturday morning! The dense fog has developed quick overnight area-wide, similar to the text update we sent out late last night. Here’s a quick animation from 7am-1pmCT of the fog progression (should probably linger here through 11am-noonCT locally):

No freezing fog is expected, as shown below in the loop, with temps remaining well above freezing in the mid-40s (due to warm air advection – southerly wind flow pushing in warmer air):