Area Forecast Discussion
Issued by NWS Seattle/Tacoma, WA

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000
FXUS66 KSEW 101522
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
830 AM PDT THU JUL 10 2014

.SYNOPSIS...A STRONG UPPER RIDGE OVER THE REGION WILL PROLONG THE
STRETCH OF SUNNY AND WARM DAYS FOR WESTERN WASHINGTON THROUGH THE
MIDDLE OF NEXT WEEK AT LEAST. THERE WILL BE LOW CLOUDS SOME
MORNINGS...MAINLY AT THE COAST. HIGH TEMPERATURES WILL BE IN THE 70S
AT THE COAST AND IN THE 80S TO LOWER 90S INLAND.

&&

.SHORT TERM...ONSHORE GRADIENTS WERE NOTABLY WEAK LAST NIGHT WITH
NOT EVEN SMALL CRAFT ADVISORY STRENGTH WESTERLY WINDS IN THE STRAIT.
THE UPSHOT WAS NO STRATUS DOWN THE STRAIT THOUGH THE SOUTHWEST
FILLED IN NICELY AND STRATUS THIS MORNING MADE IT AS FAR AS KSEA.
THIS IS A SHALLOW LAYER AND ALL SHOULD BURN OFF BY 18Z OR SO. HIGHS
TODAY WILL BE NEAR 70 ON THE COAST AND MOSTLY IN THE LOW 80S INLAND.

THERE WILL BE A WARMING TREND OVER THE NEXT FEW DAYS AS HEIGHTS RISE
FROM THE LOW 580S TO THE HIGH 580S. STRATUS INTRUSION WILL BE
MINIMAL BOTH FRIDAY AND SATURDAY MORNINGS. PRESSURE GRADIENTS WILL
BE SLIGHTLY ONSHORE IN THE AFTERNOONS AND EVENINGS BUT ACTUALLY TURN
WEAKLY OFFSHORE EACH NIGHT. THIS WILL BRING LESS OVERNIGHT COOLING
AND ALLOW DAYTIME TEMPERATURES OVER INLAND AREAS TO REACH THE MID TO
UPPER 80S FRIDAY AND THE UPPER 80S TO LOW 90S SATURDAY. BURKE

.LONG TERM...PREVIOUS DISCUSSION...THE BOTTOM LINE IS THAT THE
PROLONGED SPELL OF SUNNY WARM DAYS WILL CONTINUE THROUGH THE MIDDLE
OF NEXT WEEK AT LEAST. THE UPPER RIDGE WILL MOVE FROM EAST OF THE
CASCADES SUNDAY TO THE ROCKY MOUNTAINS ON MONDAY. THEN EVEN STRONGER
UPPER RIDGING WILL BUILD ALONG THE PACIFIC NORTHWEST COAST TUESDAY
AND WEDNESDAY. MODELS KEEP THE SURFACE FLOW VERY WEAKLY
ONSHORE...BUT MUCH OF WESTERN WASHINGTON WILL STILL BE WELL INTO THE
80S WITH SOME SPOTS IN THE LOWER OR EVEN MID 90S. MCDONNAL

&&

.AVIATION...LIGHT WLY FLOW ALOFT. SUNNY TODAY EXCEPT FOR THE AREAS
OF MORNING LOW CLOUDS COAST AND OVER SW WA. THE FOG AND LOW CLOUDS
MADE IT IN TO ABOUT THE SOUTHERN HALF OF PUGET SOUND...BUT WILL BURN
OFF QUICKLY. THERE WILL BE LESS OF THAT FRIDAY MORNING.

KSEA...SEA TAC WAS RIGHT ON THE EDGE OF THE MORNING LOW CLOUDS AND
FOG...THAT SHOULD HAVE CLEARED OUT MID MORNING OR MAYBE 10AM.
OTHERWISE SUNNY WITH A NLY BREEZE. NO LOW CLOUDS OR FOG EXPECTED
FRIDAY MORNING.

&&

.MARINE...PRESSURE GRADIENTS ARE LIGHT OVER THE AREA...BUT THERE
WILL TYPICAL SUMMERTIME NW BREEZES OVER THE WATERS IN THE AFTERNOON
AND EVENING HOURS THROUGH THE WEEKEND.

&&

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

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THE FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





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