Severe Weather Threat Day 3 Sun Jan 20

A Large Upper Vortex Will Remain Situated Across Ern Canada On
Sunday With A Potent Shortwave Trough Rotating Sewd Across The Nrn
Plains And Upper Ms Valley.

At The Surface...A Cold Front Will Surge Swd Across The Plains And Into The Midwest...Situated Roughly From The Ok/Ks Border Into Tn At 00z.

The Air Mass Over Most Of The Conus Will Continue To Be Void Of
Convective Instability.

The Exception Will Be Srn Fl Where Mid 60s F Boundary Layer Dewpoints Will Exist With Weak Sely Surface Flow... Resulting In Minuscule Cape Capable Of Supporting 10000 Ft Deep Showers. Poor Lapse Rates And Dry Air Aloft Should Preclude Thunderstorms.

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