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Dec 12, 2017 0700 UTC Day 2 Convective Outlook
Updated: Tue Dec 12 05:48:20 UTC 2017 (Print Version | 20171212 0700Z Day 2 shapefile | 20171212 0700Z Day 2 KML)
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 Forecast Discussion

   SPC AC 120548

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1148 PM CST Mon Dec 11 2017

   Valid 131200Z - 141200Z

   ...NO THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Thunderstorms are not forecast across the contiguous states on
   Wednesday.

   ...Synopsis...
   An upper ridge will be maintained across the western U.S. Wednesday,
   with its mean position centered from the west coast to British
   Columbia.  Farther east, a midlevel cyclone is expected to deepen as
   it tracks north/northeast across New England into southern Quebec,
   while a series of upstream shortwave troughs move south/southeast in
   lee of the Rockies, reinforcing the large-scale eastern U.S. trough.

   Weak south/southwesterly low-level winds should develop across TX
   through the central Gulf coast and southeast states this forecast
   period ahead of the next cold front approaching this region
   Wednesday night.  However, greater moisture available for stronger
   destabilization will remain shunted well south of the U.S. mainland.
   Aside from some offshore lightning being possible east of the middle
   and northern Atlantic states, given shallow convection deep enough
   for charge separation, a stable environment over land will inhibit
   thunderstorm formation elsewhere Wednesday into Wednesday night.

   ..Peters.. 12/12/2017

   CLICK TO GET WUUS02 PTSDY2 PRODUCT

   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z

        
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Page last modified: December 12, 2017
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