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kele
18th Sep 2005, 19:30
some times on a significant wx chart under the core of a jetstream there some figures . For example : jetstream at FL340
under it there are 2 numbers +70/ - 90 and the speed of the jetstream is 120K. Can someone answer my question.( I ve tried to check it on a couple of books with no luck )

BOAC
18th Sep 2005, 19:46
- and follow your nose.....................:D

kele
19th Sep 2005, 05:08
Thanks BOAC for the answer