Area Forecast Discussion
Issued by NWS Seattle/Tacoma, WA

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000
FXUS66 KSEW 290407
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 PM PDT TUE JUL 28 2015

.SYNOPSIS...AN UPPER RIDGE WILL KEEP DRY WARM AIR OVER THE REGION.
SUNNY DAYS WITH HIGH TEMPERATURES WELL ABOVE AVERAGE ARE EXPECTED TO
PERSIST INTO NEXT WEEK.

&&

.SHORT TERM...UPPER HEIGHTS RISE...THE AIR DRIES AND WARMS...AND
SUMMER WARMTH RETURNS TO THE REGION. TEMPS WILL WARM WED AND THU AND
THEN PLATEAU INTO NEXT WEEK. EXPECT SUNNY DAYS AND CLEAR NIGHTS WITH
ONLY SHALLOW MARINE AIR AND A FEW PATCHES OF NIGHT AND MORNING FOG
AND LOW CLOUDS ON THE COAST.

.LONG TERM...A BROAD UPPER RIDGE SHOULD REMAIN OVER THE WRN U.S. AND
CONTINUE TO KEEP WRN WA WARM AND DRY. THE CENTER OF THERMALLY
INDUCED LOW PRESSURE SHOULD STAY OVER EASTERN WA BUT NOTHING MORE
THAN SHALLOW MARINE AIR IS LIKELY TO AFFECT WRN WA SO TEMPS SHOULD
BE WELL ABOVE NORMAL OVER THE INLAND PORTION OF WRN WA WITH THE
WARMEST SPOTS IN THE LOWER 90S.

&&

.AVIATION...FLAT UPPER LEVEL RIDGE OVER WESTERN WASHINGTON WITH
WESTERLY FLOW ALOFT THROUGH WEDNESDAY. LIGHT ONSHORE FLOW IN THE
LOWER LEVELS.

CLEAR SKIES OVER WESTERN WASHINGTON THIS EVENING CONTINUING THROUGH
WEDNESDAY. PATCHY FOG POSSIBLE ALONG THE COAST INTO THE LOWER
CHEHALIS VALLEY WEDNESDAY MORNING. FELTON

KSEA...CLEAR SKIES WITH LIGHT NORTHERLY WINDS. FELTON

&&

.MARINE...HIGH PRES OFFSHORE WITH LOWER PRES E OF THE CASCADES WILL
KEEP THE FLOW ONSHORE THROUGH FRI. ANTICIPATE THE FLOW TO BECOME
BRIEFLY NORTHERLY OR OFFSHORE WED AND THU NIGHTS DUE TO A THERMALLY
INDUCED AREA OF LOW PRES TRYING TO SET UP ALONG THE WASHINGTON COAST.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE. PZ...SMALL CRAFT ADVISORY TIL 3 AM WEDNESDAY FOR THE
CENTRAL AND EASTERN STRAIT OF JUAN DE FUCA.     SMALL CRAFT ADVISORY
INNER CENTRAL COAST ZONE UNTIL 10 PM.

&&

$$

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