Tuesday, July 16, 2013

Comment On The Unusual Pattern This Week


David Blanchard - of NWS Office in Flagstaff - has left a new comment on your post "Miscellany - Sunday July 14, 2013":

"...A very similar evolution of the large-scale pattern occurred back in the second week of August 2003 - that ended with a widespread outbreak of strong storms across most of Arizona..."

In fact, there were numerous supercells -- some of which produced funnel clouds and tornadoes across northern Arizona. I documented this system and it appeared in Weather and Forecasting in 2011.
http://journals.ametsoc.org/doi/abs/10.1175/WAF-D-11-00012.1

Edited to add: This is a very interesting paper. Below are two figures from it.





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