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 Forecast Discussion

519 ACUS03 KWNS 190507 SWODY3 SPC AC 190506 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1206 AM CDT Fri Oct 19 2018 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of the Great Basin into Arizona on Sunday, and across parts of western and central Texas Sunday night. ...Synopsis... A weak upper low will drift east across the Great Basin with a 30-40 kt midlevel speed max nosing into southern AZ. Cool temperatures aloft combined with midlevel moisture will favor scattered thunderstorms across the region, with little threat of severe weather. To the east, high pressure will extend from TX to the Mid Atlantic coast as an amplified upper trough ejects out of New England. Ahead of the southwestern upper trough, minor disturbances embedded in the southwesterlies over TX may support a few elevated thunderstorms mainly Sunday night toward the middle Rio Grande Valley. Instability will remain quite weak, with a cool boundary layer in place. ..Jewell.. 10/19/2018 $$