May 23, 2013
Middle To Upper Tx Coast...
An Upper-Level Trough Is Forecast To Move From The Srn Rockies On Monday Ewd Across The Great Plains And Into The Mid To Upper Ms Valley Monday Night.
As This Occurs...A Pronounced Low-Level Jet Will Move From The Srn Plains Ewd Into The Lower To Mid Ms Valley. Model Forecasts Develop Thunderstorms Along The Wrn Edge Of The Low-Level Jet Monday Evening From The Middle Tx Coast Newd Into Sw La.
Forecast Soundings At Victoria And Galveston At 03z/Tue Show Mlcape Values Around 500 J/Kg With 0-6 Km Shear Of 65 Kt. In Spite Of Weak Instability...The Deep Layer Shear May Be Strong Enough For
A Marginal Severe Threat Before A Line Or Cluster Of Thunderstorms
Moves Offshore Into The Wrn Gulf Of Mexico Monday Night.
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