SPC AC 011722

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1122 AM CST Fri Dec 01 2017

   Valid 021200Z - 031200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Isolated thunderstorms are possible across the coastal Pacific
   Northwest Saturday.

   ...Synopsis...
   Modest amplification of the upper flow field across the U.S. will
   occur Saturday, as a trough initially off the West Coast digs
   southeastward/onshore.  In response, a weak increase in ridging over
   the central U.S. will occur, in the wake of short-wave troughing
   crossing the eastern U.S./western Atlantic.

   At the surface, high pressure will largely prevail across the
   country, though a cold front will shift across the northwestern
   states with time in conjunction with the onshore advance of the
   upper system.

   With cold air aloft overspreading the Pacific Northwest area,
   showers -- and a few/occasional/embedded mainly post-frontal
   thunderstorms may also occur, particularly over the coastal ranges. 
   Elsewhere, appreciable risk for lightning is not indicated across
   the remainder of the country.

   ..Goss.. 12/01/2017

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   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z