Day 1 Severe Weather Outlook

Valid 180100Z – 181200Z


Severe thunderstorms are not expected across the contiguous U.S.
through tonight.

…01z Update…

Scattered convection is expected to gradually deepen tonight from
portions of east TX into the TN Valley/central Gulf States. 00z
soundings from FWD/JAN/LIX exhibit weak buoyancy within an
increasing warm-advection regime. Over the last hour or so, showers
have begun to increase across the lower MS Valley from LA into
southern MS. While this activity has yet to penetrate levels
necessary for lightning, thunderstorms are expected to develop as
moisture increases atop stable boundary layer. Thunderstorm
probabilities should increase across this region over the next 3-6

..Darrow.. 02/18/2020


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