771  
ACUS03 KWNS 200809  
SWODY3  
SPC AC 200808  
 
DAY 3 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0208 AM CST WED NOV 20 2024  
 
VALID 221200Z - 231200Z  
   
..NO THUNDERSTORM AREAS FORECAST  
 
   
..SUMMARY  
 
THUNDERSTORM ACTIVITY WILL REMAIN QUITE LIMITED ON FRIDAY.  
   
..SYNOPSIS  
 
A DEEP UPPER LOW WILL BEGIN CENTERED OVER THE PA/NY AREA, BUT WITHIN  
A LARGE, DEEP UPPER TROUGH. MEANWHILE, AN UPPER RIDGE WILL EXIST  
OVER THE ROCKIES, SHIFTING SLOWLY EAST TOWARD THE HIGH PLAINS BY 12Z  
SATURDAY. WEST OF THIS RIDGE, HEIGHT FALLS WILL OCCUR OVER THE  
PACIFIC NORTHWEST AS A BROAD UPPER TROUGH MOVES IN.  
 
HIGH PRESSURE WILL PERSIST OVER MUCH OF THE CONUS, THE EXCEPTION  
BEING OVER THE NORTHEAST NEAR THE DEEP TROPOSPHERIC CYCLONE, WITH A  
DRY AIR MASS LACKING OF CAPE. THE EXCEPTION WILL BE JUST OFF THE  
WA/OR COASTS, WHERE LOW-TOPPED CONVECTION IS POSSIBLE OVER THE  
OCEAN, AND PERHAPS NEAR THE COASTLINE BY 12Z SATURDAY.  
 
..JEWELL.. 11/20/2024  
 
 
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