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May 29, 2020 0730 UTC Day 3 Severe Thunderstorm Outlook
Updated: Fri May 29 07:31:01 UTC 2020 (Print Version | 20200529 0730Z Day 3 shapefile | 20200529 0730Z Day 3 KML)
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 Forecast Discussion
   SPC AC 290731

   Day 3 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0231 AM CDT Fri May 29 2020

   Valid 311200Z - 011200Z

   ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE
   NORTHERN/CENTRAL HIGH PLAINS...

   ...SUMMARY...
   Isolated severe thunderstorms may occur across the northern/central
   High Plains Sunday afternoon and evening.

   ...North-central High Plains...
   The region will largely be influenced by upper-level ridging,
   although weak height falls may occur across parts of Montana on the
   periphery of a shortwave trough spreading over the Canadian Rockies.
   A modestly moist (50s F surface dewpoints) boundary layer will be
   maintained to the east of an eastward-moving cold front across
   Montana, and near/east of a lee trough extending southward across
   the northern/central High Plains. Differential heating in the
   vicinity of higher terrain and zones of modest convergence will
   influence isolated thunderstorm development Sunday afternoon,
   initially across eastern portions of Montana/Wyoming southward to
   the Colorado Front Range. Moderate buoyancy and 30-40 kt effective
   shear will support some high-based supercells/sustained multicells
   capable of large hail and strong wind gusts.

   ..Guyer.. 05/29/2020

   CLICK TO GET WUUS03 PTSDY3 PRODUCT

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

        
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Page last modified: May 29, 2020
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