Revised 2011-03-13
The jet stream bends, almost double it seems sometimes, around Alaska, bouncing off the Aleutians. Since most in the Lower 48 never see the weather map for Alaska, your idea of the jet stream is very different. (Most US TV weather readers/casters stand in front of New Mexico. My brother in NYC could never tell what Mountain Time weather was like.)
- The maps are from http://virga.sfsu.edu/ which has maps and analyses and forecasts of the jet stream, including for all the northern hemisphere.
Sketch map: Northern Hemisphere– click to view larger
Current Northern Hemisphere jet stream. Click image to view larger
Wikipedia has a good outline of jet stream in relation to the atmospheric layers, ” The main jet streams are located near the tropopause, the transition between the troposphere (where temperature decreases with altitude) and the stratosphere (where temperature increases with altitude).”
https://secure.wikimedia.org/wikipedia/en/wiki/Jet_stream
- via OTHER MAPS
http://www.wrh.noaa.gov/mtr/map.php
I suggest looking at this site for weather models, especially for predictive models for winds carrying materials from Japan after the 2011 earthquake, “Cliff Mass Weather Blog This blog provides my latest forecast or comments on current weather or other topics” http://cliffmass.blogspot.com/
Grassroots Science 
It works!! Map updates here when updated at San Francisco State U.
LikeLike
The map time is indicated in the upper right corner as ##Z or time on the 24-hour clock Zulu or UTC
http://www.usatoday.com/weather/resources/askjack/waskmaps.htm
LikeLike
Speaking of watching big planes land https://ykalaska.wordpress.com/2007/03/20/where-is-alaska-airbus/
and jet streams. The following was about a year or 6 months before the first commercial jet liner.
How to Ride the Jet Stream, Monday, Feb. 04, 1957
That navigation device must be better than the modern one for the Bethel Mountain Passes? Where is… Alaska’s mountainous Yukon-Kuskokwim Delta
See also
“25 January 1957: A B-47 flew 4,700 miles from March AFB, California, to Hanscom Field, Massachusetts, in 3 hours and 47 minutes, averaging 710 miles per hour.”
http://www.globalsecurity.org/wmd/systems/b-47.htm
LikeLike
this is a really intresting web site for teenagers
LikeLike
Noemi, I’m glad you find something interesting. Don’t forget, if you have school or community preparedness plans to contribute or thoughts about community health and environment improvements, you are very welcome to share. The larger community doesn’t often get to hear or benefit from the good ideas that teens and youth have to offer.
LikeLike