May 19, 2013
A Large-Scale Trough Will Encompass Much Of The Conus On Tuesday.
As A Ridge Builds Eastward Across The Pacific Coast/ Great Basin ...A Swd Developing Polar Jet Across Wrn/Cntrl Canada Will Overspread The Nrn Plains.
This Will Result In The Srn Portion Of Large-Scale Trough Over Nrn Mexico/Sw Tx To Become Increasingly Closed Off From Ewd Advancing Nrn Branch Across The Great Lakes.
At The Sfc...Moist Sly Flow Will Overspread A Baroclinic Zone From The Lower Ms Valley Newd Toward The Mid Atlantic States Where Weak Forcing Ahead Of The Upper Trough Will Lead To Scattered Showers.
However...Generally Stable/Cool Conditions Will Preclude Development Of Deeper Convection.
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