May 22, 2013
Synopsis...
Weakly Progressive/Generally Low-Amplitude Flow Pattern Aloft Will
Prevail Across The U.S. This Period...Though Several Disturbances
Will Continue Moving Through Broad/Flat Cyclonic Flow Field Over The Wrn Half Of The Conus.
With Fast Swly Flow Aloft Across The Pac Nw Vicinity -- On The Sern Fringe Of The Large Gulf Of Ak/Nern Pacific Upper Low -- Showers And An Occasional Lightning Strike Will Be Possible Across Parts Of Far Wrn Wa/Ore. However...Coverage Should Remain Insufficient To Warrant A 10% Thunder Area.
Showers And Possibly A Couple Of Lightning Strikes Will Also Be
Possible Across Parts Of W Tx/Sern Nm Invof The Surface Lee Trough
As An Upper Disturbance Crosses The Area During The Afternoon.
Again However...Thunder Potential Does Not Appear To Justify
Introduction Of A 10% Probability Area Attm.
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