Pacific From Hong Kong, joined Mar 2000, 1046 posts, RR: 0 Posted (12 years 2 months 3 weeks 5 days 3 hours ago) and read 914 times:
My Geography textbook says that there has to be a jetstream blowing eastwards at 240mph for tornadoes to form.
I'm wondering because such winds should throw transcontinental air traffic into a mess as there would be serious delays on the west coast. Are there times when all westbound transcons become seriously delayed?
AlaskaMVP From United States of America, joined Jun 2001, 150 posts, RR: 0
Reply 1, posted (12 years 2 months 3 weeks 4 days 18 hours ago) and read 885 times:
Hmm, I don't know the exact answer to your question, but I just came back from Japan, flying Seattle to Tokyo (Narita) and back on a UAL 777 (wonderful flight and crew).
The flight over had a headwind that hit 175 MPH at one point, it took us about 11 hours. The flight back had a tailwind that hit 225 MPH briefly, and we landed after about 7 & 1/2 hours. So I don't know if the jetstream ever leads to delays on transcontinental flights, but certainly makes quite a bit of difference in time! Note how transcon non-stops are always an hour longer in one direction (traveling west I believe)...