Friday, February 03, 2017

Zonal Flow Evolves Into Nasty Ridge After This Weekend

Nice sunrise view above looking from Phoenix east toward the Superstition Mountains. The PGA Tour is in Phoenix this weekend playing in the Waste Management Open - what an awful name guys!

The large scale weather pattern over North America during coming week and a half evolves from zonal flow into a very strong and persistent ridge over the West. This is illustrated by three graphics below which show average 500 mb patterns forecast from the GEFS ensembles for: top - 84 hours at 12 UTC February 6th; middle - 168 hours at 00 UTC February 10th; and bottom - 252 hours at 12 UTC February 13th (a week from this coming Monday).

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