1. Jet Stream

2. Wasaburo Oishi, Japanese Discoverer (1920s)

4. Fu-Go Balloon Weapon

6. Strahlstromung (German) for “jet stream” first used in 1939
Big effects on bomber flights during WWII

7. Jet Stream winds are not uniform

8. 250 mb isotach

10. Main Upper Tropospheric Jets Closely Associated with the Tropopause

11. Tropopause

12. Tropopause Height http://www.atmos.washington.edu/~hakim/tropo/tropo.html

14. Subtropical Jet Stream

17. Subtropical Jet Stream Often Associated with a cloud band

18. http://itg1. meteor. wisc

22. Jet Stream’s Relationship to Temperature Can Be Shown through Thermal Wind Arguments

23. 250 mb isotach

24. 1000-500 mb thickness-large thickness gradient and thus thermal wind near jet core

25. Or alternatively…

26. The Jet Stream Recall the horizontal temperature effects
on the pressure:
500 mb
700 mb
850 mb
Psurface
Warm
Cold

27. The Jet Stream Consider the balance of forces at each level: Co PGF
500 mb
700 mb
850 mb Ps
Warm
Cold

28. There are a variety of jet stream configurations that are well-known