478  
FXCN38 CWEG 250245  
TAF FORECASTER NOTES ISSUED BY THE CANADIAN AVIATION METEOROLOGICAL  
CENTRE AT 0315 UTC WEDNESDAY 25 APRIL 2018.  
 
CYYC - CALGARY INTL.  
 
SUBSIDENT WESTERLY WINDS WILL KEEP THE SURFACE DRY AND CLEAR  
OVERNIGHT, WITH THICK CIRRUS CONTINUING ALOFT.  
 
A TROUGH OF LOW PRESSURE WILL ARRIVE EARLY WEDNESDAY MORNING CAUSING  
WINDS TO SHIFT TO GUSTY NORTHERLIES/NORTHWESTERLIES. SHOWERS WILL  
DEVELOP IN THE AREA IN THE EARLY AFTERNOON AS THE MIDLEVELS COOL AND  
BECOME UNSTABLE.  
 
A RIDGE OF HIGH PRESSURE WILL BUILD IN BEHIND THE TROUGH AS IT MOVES  
SOUTHEAST ON WEDNESDAY EVENING, BRINGING CLEAR SKIES AND WEAKER WINDS  
TO SOUTHERN ALBERTA.  
 
OUTLOOK: CLEAR SKIES ON THURSDAY.  
 
WEATHER VARIABILITY: LO.  
 
FORECASTER CONFIDENCE NEXT 3 HOURS: HI.  
 
FORECASTER CONFIDENCE NEXT 6 HOURS: HI.  
 
END/SUTTON/CMAC-W  
 
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