761
FXUS66 KPQR 020601 AAA
AFDPQR
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND OR
1100 PM PDT WED JUL 1 2026
..UPDATED AVIATION DISCUSSION
SYNOPSIS
ONSHORE FLOW PERSISTS OVER THE NEXT WEEK WITH COOLER
THAN NORMAL TEMPERATURES THROUGH THURSDAY. WITHIN THE ZONAL
FLOW, WEAK HIGH PRESSURE FORMS WHICH WILL ALLOW FOR SKIES TO
CLEAR AND TEMPERATURES TO WARM. LOOKING AT TEMPERATURES AROUND
MORE SEASONABLE, OR SLIGHTLY ABOVE NORMAL ON FRIDAY THROUGH AT
LEAST TUESDAY.
DISCUSSION...NOW THROUGH WEDNESDAY
VERY MINIMAL CHANGE IN
CURRENT WEATHER CONDITIONS AND THE OVERALL FORECAST FROM THE
LAST PACKAGE. THE SYNOPTIC PATTERN CAN BE BEST DESCRIBED AS
ZONAL ONSHORE FLOW, WITH WEAK HIGH PRESSURE FORMING ON FRIDAY
THROUGH EARLY NEXT WEEK. 500 MB HEIGHT ENSEMBLES ARE IN EXCELLENT
AGREEMENT WITH THIS OVERALL PATTERN, AND SENSIBLE WEATHER FORECASTS
REMAIN ON TRACK WITH VERY LITTLE VARIATION.
MODEL GUIDANCE CONTINUES TO SUGGEST LITTLE CHANGE TO THE
OVERALL WEATHER PATTERN ON THURSDAY IN COMPARISON TO WEDNESDAY.
CLOUDS WILL STILL BE PRESENT WITH A FEW SUN BREAKS BUT OVERALL,
IMPACT WISE, THE FORECAST WILL REMAIN UNCHANGED. TEMPERATURES
WILL RISE BY A FEW DEGREES INTO THE 70S, EXCEPT INTO THE 60S
ALONG THE COAST. WILL NOTE THAT ALL CHANCES FOR PRECIPITATION
HAVE NEARLY DISAPPEARED OR DROPPED BELOW 5%. CONDITIONS TREND
SUNNIER AND WARMER FRIDAY INTO THE HOLIDAY WEEKEND AS UPPER
LEVEL FLOW TRANSITIONS FROM NORTHWESTERLY TO WESTERLY AND 500 MB
HEIGHTS BEGIN TO INCREASE A BIT. BY FRIDAY, WIDESPREAD HIGHS
AROUND 75-80 DEGREES ARE EXPECTED FOR INLAND VALLEYS. HIGHS WILL
LIKELY WARM INTO THE LOW TO MID 80S FOR JULY 4-7 (70-90% CHANCE
EACH DAY), EXCEPT IN THE COWLITZ VALLEY AND ALONG THE LOWER
COLUMBIA WHERE HIGHS IN THE MID TO UPPER 70S ARE THE MOST LIKELY
OUTCOME. DESPITE WARMER TEMPERATURES INLAND, THE COAST WILL
STAY STUCK IN THE 60S EACH DAY DUE TO PERSISTENT ONSHORE FLOW.
IT IS IMPORTANT TO REMEMBER THAT WHILE THINGS WILL BE WARMING
UP, MANY OF OUR NATURAL WATER BODIES REMAIN COLD. PLEASE
PRACTICE SAFE WATER PRACTICES AND NOTE THAT RIVERS ARE FAIRLY
QUICK MOVING AND CAN QUICKLY SWEEP YOU AWAY. WEAR LIFE JACKETS,
AND VISIT WITH A BUDDY. -27/23
AVIATION
SATELLITE IMAGERY AND TERMINAL OBSERVATIONS AS OF LATE
WEDNESDAY EVENING DEPICTS INCREASING STRATUS ACROSS THE AREA WITH
PREDOMINATELY LOW-END VFR CIGS. AN EXCEPTION IS THE NORTH OREGON
COAST INCLUDING KAST WHERE THERE ARE ALREADY MVFR CIGS AROUND 2 KFT.
HIGH CONFIDENCE KAST WILL MAINTAIN MVFR CIGS BETWEEN 1-2 KFT THROUGH
18Z THU, BEFORE LIFTING IN THE AFTERNOON TO 2-3 KFT. LOW CONFIDENCE
THAT KAST IMPROVES TO VFR TOMORROW AS THERE IS A WEAK FRONT MOVING
INTO WESTERN WA WHICH WILL MAINTAIN LOW CIGS. THE CENTRAL OREGON
COAST INCLUDING KONP IS ALSO TRENDING MVFR TONIGHT THROUGH 18Z THU,
BUT ENOUGH MIXING WILL SUPPORT IMPROVEMENT TO VFR IN THE AFTERNOON.
FOR INLAND LOCATIONS, MOSTLY LOW-END VFR CIGS (3-4 KFT) THROUGH THE
MORNING BEFORE BREAKING OUT INTO HIGH LEVEL CLOUDS. LIGHT AND
VARIABLE WINDS UNDER 5 KT ACROSS THE AREA THROUGH 18Z THU, BECOMING
NORTH-NORTHWESTERLY AROUND 5-8 KT IN THE AFTERNOON AT ANY GIVEN
TERMINAL. AN EXCEPTION IS KAST, WHERE WINDS WILL BE MORE
SOUTHWESTERLY DUE TO THE WEAK FRONTAL PASSAGE.
KPDX AND APPROACHES...PREDOMINATELY LOW-END VFR CIGS THROUGH 18Z THU
WITH A 10-25% CHANCE FOR MVFR CIGS AT ANY GIVEN HOUR BETWEEN 10-18Z
THU. HIGH LEVEL CLOUDS ABOVE 10 KFT IN THE AFTERNOON.
NORTHWESTERLY WINDS UNDER 10 KT. -10
MARINE
SEAS HAVE BEEN A BIT MORE DYNAMIC TODAY THAN
PREVIOUSLY THOUGHT. WHILE MOST OF THE BUOYS SHOWS SEAS LESS THAN
7 FT AT 10 SECONDS, BUOY 46050 CONTINUES TO SHOW PERIODIC SEAS
OF 8 FT AT 9 SECONDS THUS EQUATING TO STEEP SEAS. HOWEVER, THESE
CONDITIONS ARE MARGINAL AND LIKELY ASSOCIATED A BIT WITH SOME OF
THE BREEZIER DIURNALLY DRIVEN WINDS. NOT EXPECTING THESE
CONDITIONS TO BE WIDESPREAD THOUGH SO HAVE ALLOWED THE SMALL
CRAFT ADVISORY TO EXPIRE. CANNOT RULE OUT PERIODS OF THESE
CONDITIONS THOUGH SO BE AWARE IF IN THE OUTER WATERS SOUTH OF
CAPE FOULWEATHER. WINDS ARE NORTHWESTERLY AROUND 6-8 KT WITH
GUSTS OF 15 KT EXCEPT RIGHT ALONG THE COAST WHERE GUSTS UP TO 20
KT HAVE BEEN REPORTED. SEAS FALL TO 4-6 FEET BY LATE WEDNESDAY
NIGHT AND THEN HOLD STEADY THROUGH THE UPCOMING WEEKEND.
MEANWHILE, PREDOMINATELY NORTHWEST WINDS ARE EXPECTED TO CONTINUE
THROUGH FRIDAY WITH GENERAL WIND SPEEDS BECOMING EVEN WEAKER
EACH DAY. A THERMALLY INDUCED SURFACE TROUGH WILL BUILD
NORTHWARD UP THE SOUTH OREGON COAST OVER THE WEEKEND, BRINGING
INCREASING NORTHERLY WINDS WITH GUSTS UP TO 20-25 KT. AS IS
OFTEN THE CASE DURING THIS TYPICAL SUMMERTIME PATTERN, WIND
SPEEDS WILL BE STRONGEST DURING THE AFTERNOON AND EVENING HOURS
EACH DAY WITH DAYTIME HEATING. ALTHOUGH SIGNIFICANT WAVE HEIGHTS
ARE NOT EXPECTED TO INCREASE MUCH, THE INCREASING WINDS WILL
RESULT IN CHOPPIER SEAS.
-27/23
PQR WATCHES/WARNINGS/ADVISORIES
OR...NONE.
WA...NONE.
PZ...NONE.
WWW.WEATHER.GOV/PORTLAND
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