SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0628 PM CST Wed Feb 17 2021 Valid 180100Z - 181200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTH-CENTRAL GULF COAST... ...SUMMARY... Isolated severe storms are possible across the central Gulf Coast through tonight. ...Central Gulf Coast... A cool and stable surface air mass resides over land as of 01Z, the exception being coastal southeast LA where dewpoints have risen into the upper 50s and lower 60s F. Strong warm advection profiles will persist tonight ahead of a weak surface low which is forecast to skirt the LA/MS/AL coasts tonight, with 850 mb winds to 50 kt. This low may eventually make it inland across coastal AL or the western FL Panhandle, where surface-based storms with a threat of damaging gusts or a tornado will be possible. The northern bounds of any severe threat will strongly depend on boundary layer air mass recovery. Shear will remain quite favorable for supercells and tornadoes, conditional on the instability. For more information see mesoscale discussion 112. ..Jewell.. 02/18/2021
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