SPC AC 250720

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0220 AM CDT Mon May 25 2020

   Valid 271200Z - 281200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   At least isolated thunderstorm coverage is forecast from the
   southern Plains through the Mississippi/Ohio Valleys and Southeast
   states on Wednesday. Thunderstorms are also possible over the
   central Rockies. However, overall severe thunderstorm potential is
   minimal.

   ...Synopsis...
   An upper cyclone is forecast to be centered over the southern Plains
   early Wednesday morning. Downstream blocking via a subtropical ridge
   centered off the Mid-Atlantic coast will persist throughout the
   period, leading to only slow eastward motion of the upper cyclone.
   Elsewhere, a northern-stream shortwave trough will likely move
   southeastward into the Canadian Prairie Provinces while upper
   ridging builds eastward into much of the western CONUS.

   Showers and thunderstorms are anticipated throughout the eastern and
   northeastern periphery of the upper cyclone and its attendant
   surface low centered over the southern Plains. Some enhancement of
   the low-level flow is possible along the eastern half of the
   cyclone, but poor lapse rates will temper instability and limit the
   severe risk.

   Guidance differs on the strength and evolution of the surface low
   near the SC coast at the beginning of the period. If a more inland
   track and deeper low are realized, some severe threat may
   materialize. Predictability is currently too low to introduce any
   severe probabilities.

   ..Mosier.. 05/25/2020

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