In article lgate.org,
Michael Mcneil writes:

http://www.doverpublications.com/sam...4/sample4b.htm
Interesting, much overlooked and so far as I know, still unexplained
natural phenomenon.


Assuming that you are referring to the first paragraph on that page, I
think this would be the effect of the sea breeze, caused by the land
heating up faster than the sea during the day and cooling down faster at
night.
--
John Hall
"Banking was conceived in iniquity and born in sin"

Sir Josiah Stamp, a former president of the Bank of England