Severe Weather Threat Day 1 Wed Dec 12


A Shortwave Over The Arklatex Early This Morning Will Quickly Track
Ewd Across The Cntrl Gulf Coast States During The Afternoon And The Carolinas By Thursday Morning.

Meanwhile...A Cold Front Over The Nrn Fl Peninsula Will Slowly Sag Southward Across The State During The Afternoon And Overnight Hours...Providing Some Focus For Thunderstorm Development.

Otherwise...A Progressive Pattern Will Persist Today As A Deepening Shortwave Impulse Off The Ca/Ore Coast Rotates E/Se Toward Cntrl Ca And The Great Basin.

Weak Cyclogenesis To The North And East Of The San Francisco Bay Area In Nrn Ca May Aid In Isolated Thunderstorm Development Through Early Evening...As A Cold Front Drops Swd From The Pacific Nw/Nrn Rockies Into The Great Basin By 12z Thursday.

Cntrl Fl Peninsula...

A Warm...Moist Airmass Ahead Of Aforementioned Cold Front Is
Expected With Temperatures In The Mid 70s To Low 80s And Dewpoints In The Upper 60s To Mid 70s. Despite This...Uncertainty In The Degree Of Destabilization During Peak Heating Exists Due To Expected Cloud Cover. Modest Deep Layer Shear And Forcing For Ascent Along The Cold Front From Glancing Shortwave May Support Loosely Organized Convection And Marginal Severe Threat In Strongest Cells. However...Poor Mid Level Lapse Rates...Light Low Level Winds And Only Weakly Veering Profiles Will Limit Widespread Organized Severe Threat.

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