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Dec 8, 2016 0700 UTC Day 2 Convective Outlook
Updated: Thu Dec 8 06:52:15 UTC 2016 (Print Version | 20161208 0700Z Day 2 shapefile | 20161208 0700Z Day 2 KML)
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 Forecast Discussion

   SPC AC 080652

   Day 2 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   1252 AM CST Thu Dec 08 2016

   Valid 091200Z - 101200Z

   ...NO SEVERE THUNDERSTORM AREAS FORECAST...

   ...SUMMARY...
   Severe thunderstorms are not expected across the United States
   Friday through Friday night.

   ...SYNOPSIS...
   A progressive flow pattern across the contiguous United States will
   become nearly zonal on Friday, with one trough moving off the East
   Coast.  Meanwhile, a closed low forming in the northeast Pacific
   (west of British Columbia and Washington/Oregon) is expected to
   break down on Friday, with several low-amplitude impulses advancing
   inland through the Pacific Northwest to the northern Rockies. 

   Offshore low-level flow into the Gulf of Mexico will be maintained
   as a large anticyclone shifts east encompassing much of the U.S.
   east of the Mississippi Valley.  This will continue to shunt
   moisture equatorward into the southern portions of the Gulf Basin,
   precluding moisture return, while this expected synoptic pattern
   inhibits thunderstorm development.

   The exception to the negligible lightning potential this forecast
   period will be primarily over and in the lee of Lake Erie, where
   inversion heights will remain deep enough for charge separation. 
   Cold lower-tropospheric air spreading across warm lake surface
   temperatures (45-50 degrees F) should maintain steep lapse rates and
   destabilization.

   ..Peters.. 12/08/2016

   CLICK TO GET WUUS02 PTSDY2 PRODUCT

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

        
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Page last modified: December 08, 2016
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