Matt Whiting wrote:

http://math.isu.edu/~wolperj/cold.html

Do you want to admit now that you are wrong or keep arguing? :-)

Well if someone, somewhere, says something on the web then it *must* be
true :-) Actually the web page you cite is a good one and I recommend
folks read it. I never claimed that temperature effects don't exist.
Only that the "high to low, look out below" phrase in piloting texts
generally refers to pressure effects, not temperature effects. That's
the only sense in which I disagree with the cited article.

Here's what Jeppeson's Instrument and Commercial textbook (2003 edition)
has to say on the subject (page 2-20 on Altimeter Setting):

"The most common altimeter error is also the easiest to correct. It
occurs when you fail to keep the altimeter set to the local altimeter
setting. When flying from an area of high pressure to an area of low
pressure without resetting your altimeter, the instrument interprets the
lower pressure as a higher altitude. Since you will lower the nose of
the airplane to maintain the same indicated altitude, you will end up at
a lower true altitude. This is why, when flying from high to low
pressure, look out below."

Jim Rosinski