Phenomenon nicknamed "Karl" in San Francisco (3)
I believe the answer is:
fog
(Other definitions for fog that I've seen before include "Confusion" , "Pea-souper" , "Bank restricting visibility" , "Thick mist" , "Impenetrable mist" .)
I believe the answer is:
fog
(Other definitions for fog that I've seen before include "Confusion" , "Pea-souper" , "Bank restricting visibility" , "Thick mist" , "Impenetrable mist" .)