238  
ACUS48 KWNS 050806  
SWOD48  
SPC AC 050804  
 
DAY 4-8 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0204 AM CST TUE DEC 05 2017  
 
VALID 081200Z - 131200Z  
   
..DISCUSSION
 
 
LARGE UPPER TROUGH COVERING THE CENTRAL AND EASTERN CONUS AT THE  
BEGINNING OF THE PERIOD -- 12Z FRIDAY -- WILL GRADUALLY SHIFT  
EASTWARD OVER THE WEEKEND, WHILE UNDERGOING SOME MODEST  
DEAMPLIFICATION. HOWEVER, THE PATTERN IS EXPECTED TO REAMPLIFY NEXT  
WEEK AS ANOTHER SHORTWAVE TROUGH DROPS THROUGH THE PLAINS AND INTO  
THE MS VALLEY. THIS OVERALL PATTERN PROGRESSION WILL MAINTAIN A DRY,  
CONTINENTAL AIRMASS ACROSS CENTRAL AND EASTERN PORTIONS OF THE  
CONUS, LIMITING INSTABILITY AND KEEPING THE SEVERE WEATHER THREAT  
LOW THROUGH AT LEAST THE MIDDLE OF NEXT WEEK.  
 
..MOSIER.. 12/05/2017  
 
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