SPC AC 060723

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0223 AM CDT Sun Sep 06 2020

   Valid 081200Z - 091200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Organized severe thunderstorms are not currently forecast across the
   contiguous United States on Tuesday.

   ...Synopsis...
   The upper pattern will feature a large-scale trough over the Rockies
   into the north-central U.S. that will evolve to a closed mid-level
   low centered over the Four Corners by early Wednesday.  In the low
   levels, a seasonably anomalous cold front will surge south through
   the central and southern Great Plains during the period.

   ...OK northeastward to the mid MS Valley...
   A moist boundary layer south of the front will destabilize during
   the day.  Showers/scattered thunderstorms are likely to develop by
   late morning across southern/eastern KS with storms expanding in
   coverage into OK and MO by early-mid afternoon.  With large-scale
   upper forcing for ascent relegated farther west over the High
   Plains/Rockies, the cold front will primarily be the focus for
   convective activity.  The anafront character of the boundary across
   parts of the southern Great Plains will quickly lead to elevated
   storms behind the wind shift.  Modest mid-level flow across the warm
   sector will likely limit the potential for storm organization. 
   Given the aforementioned scenario, will defer the introduction of
   low-severe probabilities to a later outlook update.

   ..Smith.. 09/06/2020

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   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z