"Tom Bennett" wrote in message
...
I always thought that the jetstream ran west to east. How unusual is it
for parts to go into reverse?

I've noticed an east to west flow over Newfoundland at the moment, with
another fragment on the west coast of Canada doing the same thing:
http://squall.sfsu.edu/gif/jetstream_norhem_00.gif

- Tom.
It's rare to hear the jetstream mentioned on the
weather forecast in the UK whereas in the US
much is made of it. I lived in DC and when the
jetstream moved south we used to get Canadian
weather, north and we got Mexican weather. It
seemed quite a reliable indicator at any time of
the year.

Alan