Area Forecast Discussion
Issued by NWS Seattle/Tacoma, WA

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000
FXUS66 KSEW 271553
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
855 AM PDT MON JUL 27 2015

.SYNOPSIS...A BROAD UPPER RIDGE WILL BRING DRY AND WARMER WEATHER
THIS WEEK.

&&

.SHORT TERM...AREAS OF LOW CLOUDS THIS MORNING WILL BURN OFF FOR
PARTLY TO MOSTLY SUNNY WEATHER THIS AFTERNOON AS HIGH PRESSURE ALOFT
STARTS TO BUILD OVER THE REGION. A FEW SHOWERS WILL LINGER OVER THE
CASCADES TODAY...MAINLY IN THE MORNING. OTHERWISE...IT SHOULD BE DRY
TODAY WITH HIGHS SLIGHTLY BELOW NORMAL.

UPPER HEIGHTS WILL RISE ACROSS THE AREA TUESDAY AND WEDNESDAY WITH
DRYING AT THE LOW LEVELS. THERE SHOULD BE SOME LOW CLOUDS AGAIN
TUESDAY MORNING...BUT LESS THAN THIS MORNING...AND THESE WILL BURN
OFF FOR A MOSTLY SUNNY AFTERNOON. HIGHS WILL WARM SEVERAL
DEGREES. WEDNESDAY LOOKS SUNNY WITH HIGHS WARMING A FEW MORE
DEGREES. SCHNEIDER

.LONG TERM...PREVIOUS DISCUSSION...THE WARM AND DRY PATTERN WILL
PERSIST THROUGH THE WEEKEND AS A BROAD UPPER LEVEL RIDGE BECOMES
ESTABLISHED OVER THE WESTERN US. HEIGHTS OVER THE PACIFIC NORTHWEST
PEAK ON THURSDAY HINTING THAT IT WILL BE THE WARMEST DAY WITH HIGH
TEMPERATURES REACHING THE UPPER 80S TO LOW 90S OVER THE
INTERIOR...AND MID 70S ALONG THE COAST AND STRAIT. SLIGHT COOLING
CONTINUES TO BE EXPECTED INTO THE WEEKEND WITH HIGHS EACH DAY FROM
SEATTLE SOUTH REMAINING IN THE MID TO UPPER 80S.

&&

.AVIATION...AN UPPER RIDGE WILL BUILD OVER THE REGION TODAY. THE
FLOW ALOFT WILL BE NLY. THE LOW LEVEL FLOW WILL REMAIN ONSHORE.
MEANWHILE...THERE WERE AREAS OF IFR CIGS OVER THE AREA THIS
MORNING...ALONG WITH PATCHY LIFR CIGS/VSBYS OVER THE PUGET SOUND
REGION. EXPECT CONDITIONS TO CONTINUE IMPROVING THIS MORNING...
WITH VFR CONDITIONS ANTICIPATED OVER THE ENTIRE AREA BY 2000 UTC.

KSEA...CIGS WILL CONTINUE TO LIFT THIS MORNING. ANTICIPATE VFR
CONDITIONS ABOUT 1900 UTC...2000 UTC AT THE LATEST.

&&

.MARINE...ONSHORE FLOW OF VARYING STRENGTH WILL PREVAIL THIS WEEK
DUE TO HIGH PRES OFFSHORE AND LOWER PRES INLAND.

&&

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

&&

$$

WWW.WEATHER.GOV/SEATTLE

AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION CAN BE SEEN AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML


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