In article . com,
Luke Skywalker wrote:

Airline radars are so much better because of power and antenna size
then General Aviation radars...but even they are no match for the
power and resultion of even ATC radars in terms of WX. ATC radars are
air search not so much WX but with modern technology the WX
information can be "used" before it is stripped off for primary target
display.

Robert, I read much of what Dave Gwinn said in his AvWeb podcast in your
post. :-)
Dave also mentions asking the ATC controller to press his "Weather 3"
key and describe the "slashes and H's" along your route.