SPC AC 150807

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0207 AM CST Wed Dec 15 2021

   Valid 171200Z - 181200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Isolated to scattered thunderstorm development will be possible from
   parts of the southern Plains into the mid Mississippi on Friday. A
   few storms may also occur across the southern Florida Peninsula. No
   severe threat is expected Friday or Friday night.

   ...DISCUSSION...
   An upper-level trough will move across the central and northern High
   Plains on Friday as west-southwest mid-level flow remains
   established from the southern Plains to the Eastern Seaboard. A
   quasi-stationary front will be in place from north Texas
   east-northeastward into the mid Mississippi Valley. Near and to the
   south of the front, surface dewpoints are forecast to be in the
   lower 60s F yielding weak instability by afternoon. Thunderstorm
   development will be possible near the front in the late afternoon.
   Convective coverage is expected to increase during the early evening
   as low-level flow strengthens. The instability could be enough to
   support a few strong wind gusts but there is too much spatial
   uncertainty to introduce a marginal risk at this time.

   ..Broyles.. 12/15/2021

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   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0830Z