if the weather changes continue in the direction they are going, my theory of the grand canyon getting carved in one or two seasons (instead of ‘illions).
![from http://aviationweather.gov/](http://1sky.com/blog/wp-content/uploads/2013/11/latest_US_ir-300x224.jpg)
from http://aviationweather.gov/, tropical storm “eighteen” feeds into the stream going to canada. 20131104