988  
FXUS66 KSEW 062132  
AFDSEW  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SEATTLE WA  
232 PM PDT SUN JUL 6 2025  
   
SYNOPSIS
 
WESTERN WASHINGTON WILL SEE A WARMING TREND AS A RIDGE  
OF HIGH PRESSURE DOMINATES INTO TUESDAY. A WEAK SYSTEM WILL BRING  
A BRIEF COOL DOWN AND A CHANCE OF LIGHT SHOWERS MIDWEEK BEFORE  
HIGH PRESSURE REBUILDS FOR THE LATTER PART OF THE WEEK LEADING TO  
A RETURN OF WARMER TEMPERATURES AND DRY CONDITIONS.  
 

 
   
SHORT TERM /TONIGHT THROUGH WEDNESDAY/
 
AN UPPER LEVEL RIDGE OF  
HIGH PRESSURE WILL CONTINUE TO STRENGTHEN AND MOVE OVER WESTERN  
WASHINGTON THROUGH MONDAY. THIS WILL LEAD TO CONTINUED CLEAR SKIES  
AND A WARMING TREND. TEMPERATURES WILL BE SEVERAL DEGREES ABOVE  
SEASONAL AVERAGES. THE SEATTLE METRO AREA SOUTHWARD HAS A  
MODERATE HEATRISK ON TUESDAY, AFFECTING HEAT-SENSITIVE  
INDIVIDUALS. ENSEMBLE GUIDANCE INDICATES THAT A WEAK TROUGH  
CROSSING BRITISH COLUMBIA WILL HAVE SOME INFLUENCE ON WESTERN  
WASHINGTON TUESDAY NIGHT INTO WEDNESDAY. THIS WILL PROMOTE  
INCREASED COOL ONSHORE FLOW AND A CHANCE FOR LIGHT SHOWERS,  
ESPECIALLY ALONG THE COAST AND IN THE NORTH CASCADES.  
   
LONG TERM /THURSDAY THROUGH SUNDAY/
 
CONDITIONS SHOULD START TO  
REBOUND SLIGHTLY ON THURSDAY. WHILE SOME LINGERING CLOUDS AND ISOLATED  
LIGHT SHOWERS ARE POSSIBLE, THE OVERALL TREND WILL BE TOWARDS  
PARTLY SUNNY SKIES AND TEMPERATURES IN THE 70S FOR INTERIOR AREAS.  
AS THE MIDWEEK TROUGH MOVES EASTWARD, UPPER LEVEL RIDGING IS  
EXPECTED TO REBUILD OVER THE REGION BY LATE WEEK. TEMPERATURES  
WILL BEGIN TO CLIMB BACK INTO THE MID 70S TO LOW 80S ACROSS THE  
INTERIOR LOWLANDS. ANOTHER WEAK FRONT MIGHT BRUSH THE AREA LATE  
NEXT WEEKEND.  
 

 
   
AVIATION
 
NORTHWESTERLY TO WESTERLY FLOW ALOFT AS RIDGING  
GRADUALLY BUILDS OVER WESTERN WASHINGTON. ONSHORE FLOW WILL  
CONTINUE IN THE LOWER LEVELS. VFR CONDITIONS WILL CONTINUE TO  
PERSIST AT ALL TERMINALS THIS EVENING AS BENIGN CONDITIONS  
REMAIN. MARINE STRATUS WILL HUG THE COAST TONIGHT AND INTO MONDAY  
MORNING, LIKELY BRINGING MVFR/IFR CONDITIONS TO KHQM AND  
POTENTIALLY KOLM. ELSEWHERE, VFR WILL REMAIN THROUGH MONDAY.  
NORTHERLY WINDS PERSIST AROUND 8 TO 12 KNOTS.  
 
KSEA...VFR CONDITIONS WILL CONTINUE THROUGHOUT THE TAF PERIOD.  
N/NE WINDS 8 TO 12 KNOTS THROUGHOUT THE EVENING WILL DECREASE  
OVERNIGHT TO 4 TO 8 KNOTS AND WILL INCREASE AGAIN MONDAY  
AFTERNOON.  
 
MAZURKIEWICZ  
 

 
   
MARINE
 
SURFACE HIGH PRESSURE CURRENTLY OFFSHORE WILL REMAIN  
THERE UNTIL EARLY THIS WEEK. DIURNALLY DRIVEN WESTERLY PUSHES DOWN  
THE STRAIT WILL CONTINUE OVER THE NEXT SEVERAL EVENINGS AS LOWER  
PRESSURE REMAINS INLAND. THE WESTERLY PUSH TONIGHT IS WEAKER THAN  
THE PREVIOUS COUPLE OF NIGHTS AND LOOKS TO REMAIN ABOVE ANY SMALL  
CRAFT CRITERIA. ALTHOUGH, CANNOT RULE OUT A FEW ROGUE GUSTS OF  
SMALL CRAFT STRENGTH HERE AND THERE, AS IT WILL REMAIN RATHER  
BRIEF.  
 
A BRIEF FRONTAL SYSTEM WILL CROSS THE WATERS TUESDAY NIGHT INTO  
WEDNESDAY MAY BRING AN UPTICK IN WIND AND SEAS, BUT AT THIS TIME  
IT DOES LOOK WEAK.  
 
COMBINED SEAS GENERALLY AROUND 4 TO 6 FEET WILL STAY THROUGHOUT  
THE FIRST HALF OF THE WEEK. CONTINUOUS NORTHERLY WINDS MAY CREATE  
STEEP SEAS AT TIMES THROUGHOUT THE WEEK.  
 
MAZURKIEWICZ  
 

 
   
SEW WATCHES/WARNINGS/ADVISORIES
 
 
WA...NONE.  
PZ...NONE.  
 

 
 

 
 
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