STARTING POINT 



35.5°N, 75°W 



35.0°N, 75°W 

 34 5° N, 75° W 



T'.^.T-, ,.r ,,r,.,r. 



RADIUS OF CURVATURE 



50 Km 



25 Km 



20 Km 



r T r T 



Figure 4. Paths of Constant Potential Vorticity 



-6- 



