May 20, 2013
General Tstm Area And Underlying Reasoning From Previous Outlook Remain On Track And No Changes Were Made With The 20z Outlook.
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As An Upper Trough Progresses From The Swrn Conus Into The
Plains...A Warm Front Currently Draped Along The Se Tx Coast Will
Move Slowly Nwd During The Day...Before Returning Swd As A Cold
Front Late In The Period As The Upper System Moves By Well To The
North.
Ascent Associated With The Upper Trough Combined With A Subtropical Plume Of Mid-Upper Level Moisture Will Result In A Large
Area Of Rain With Embedded Thunderstorms Developing Along And North Of The Front Beginning This Evening Across Se Tx Into Wrn La.
While Wind Profiles In The Vicinity Of The Frontal Zone Tonight Would Otherwise Be Favorable For Organized Storm Structures...Very Poor Lapse Rates/Limited Buoyancy And Generally Elevated Nature Of Expected Convection Are Expected To Limit The Severe Threat.
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