740
FXUS66 KPQR 080323 AAB
AFDPQR
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND OR
822 PM PDT SAT JUN 7 2025
UPDATED AVIATION AND MARINE DISCUSSIONS. UPDATED PQR
WATCHES/WARNINGS/ADVISORIES.
SYNOPSIS
HIGH PRESSURE OVER THE REGION WILL LEAD TO HOT
TEMPERATURES FOR INLAND AREAS WHILE THE COAST REMAINS COOL THROUGH
MONDAY BEFORE INCREASING ONSHORE FLOW BRINGS A GRADUAL RETURN
TO MORE AVERAGE TEMPERATURES FOR INLAND LOCATIONS NEXT WEEK.
SHORT TERM...NOW THROUGH MONDAY NIGHT
WATER VAPOR SATELLITE
IMAGERY FROM SUNDAY AFTERNOON REVEALED HIGH PRESSURE CENTERED OVER
THE EASTERN PACIFIC OFF THE NORTHERN CALIFORNIA AND OREGON COAST.
ENSEMBLE GUIDANCE IS IN GOOD AGREEMENT IT WILL SHIFT OVER THE
PACIFIC NORTHWEST OVER THE NEXT 12-36 HOURS BEFORE SLIDING OVER
THE ROCKIES EARLY NEXT WEEK. THIS WILL LEAD TO A DRAMATIC
WARMUP WITH TEMPERATURES RISING WELL INTO THE 90S FOR MOST
LOCATIONS IN THE WILLAMETTE VALLEY, CASCADE FOOTHILL VALLEYS AND
THE COLUMBIA RIVER GORGE FOR SUNDAY AND MONDAY.
ENSEMBLE GUIDANCE IS IN RELATIVELY GOOD AGREEMENT ON
TEMPERATURES. FOR EXAMPLE, THE NBM SUGGESTS THERE IS AN 80%
CHANCE THAT TEMPERATURES END UP BETWEEN 93-99F AT KPDX ON SUNDAY
AND 90-94F FOR KEUG FOR MONDAY WITH ONLY A SLIGHT DEVIATION
FROM THOSE NUMBERS ON THE OPPOSITE DAYS AT BOTH SITES. DAILY
RECORD HIGH TEMPERATURES ARE IN JEOPARDY AT A FEW SITES AS A
RESULT. LOW TEMPERATURES WILL GENERALLY FALL INTO THE UPPER 50S
TO LOW 60S AT MOST LOCATIONS, WHICH WILL HELP TO KEEP IMPACTS
MORE LIMITED. HOWEVER, THE PORTLAND/VANCOUVER METRO AND THOSE
LIVING ON SOME OF THE HIGHER HILLS OF THE REGION WILL BE MORE
SUSCEPTIBLE TO LOW TEMPERATURES DIPPING ONLY INTO THE MID 60S,
AND THUS RESULT IN THESE LOCATIONS FALLING INTO THE MAJOR HEAT
RISK CATEGORY WITH HEAT IMPACTS LIKELY GREATER FOR THOSE WITHOUT
ACCESS TO AIR CONDITIONING.
LONG TERM...TUESDAY THROUGH SATURDAY
THE GLOBAL ENSEMBLES ARE
IN GOOD AGREEMENT THAT LARGE SCALE RIDGING WILL GIVE WAY TO A
LOW AMPLITUDE LARGE SCALE SHORTWAVE TROUGH MOVING OVER THE
PACIFIC NORTHWEST. THIS WILL LEAD TO INCREASING ONSHORE FLOW
TUESDAY THROUGH THE END OF THE WEEK AND RESULT IN TEMPERATURES
COOLING BACK DOWN TO NEAR AVERAGE FOR EARLY-MID JUNE LEVELS.
CLIMATE
DAILY RECORD HIGH TEMPERATURES:
SUNDAY, JUNE 8
PORTLAND94 (1955)
SALEM98 (1955)
EUGENE93 (2015)
ASTORIA 97 (1903)
MONDAY, JUNE 9
PORTLAND95 (1955)
SALEM96 (1955)
EUGENE91 (2015)
ASTORIA 87 (1924)
AVIATION
VISIBLE SATELLITE IMAGERY FROM 03Z SUNDAY DEPICTED
CLEAR SKIES ACROSS ALL OF WESTERN WASHINGTON AND WESTERN OREGON,
ASIDE FROM A NARROW BAND OF LOW MARINE STRATUS HUGGING THE
COASTLINE FROM MANZANITA TO COOS BAY, IMPACTING KONP WITH LIFR
CIGS AND VISIBILITIES. EXPECT THIS TREND TO CONTINUE THROUGH
AT LEAST TOMORROW MORNING, WHILE CLEAR SKIES/VFR FLIGHT
CONDITIONS CONTINUE ELSEWHERE. THAT SAID, CONFIDENCE IS LOW
REGARDING VISIBILITIES/CIGS AT KAST TONIGHT THROUGH TOMORROW
MORNING, AS THIS TERMINAL WILL BE VERY CLOSE TO THE PERIPHERY OF
THE MARINE STRATUS DECK AND HAS THE POTENTIAL TO STAY VFR OR
SUDDENLY BECOME SOCKED IN WITH LIFR TO IFR CIGS/VISIBILITIES.
DAYTIME HIGH TEMPERATURES WILL BE IN THE 90S TOMORROW FOR ALL
INLAND TERMINALS. THIS COULD RESULT IN LOWER AIR DENSITY
CONDITIONS.
PDX AND APPROACHES...VFR UNDER CLEAR SKIES THROUGH 06Z MONDAY WITH
LIGHT NORTHWEST WINDS AROUND 3-7 KT. -TK
MARINE
SURFACE HIGH PRESSURE CENTERED WELL OFFSHORE WILL
MAINTAIN A NORTHERLY FLOW REGIME WITH BUOYS OVER THE COASTAL
WATERS THROUGH THE UPCOMING WEEK. NORTHERLY WINDS WILL BEGIN TO
STRENGTHEN A BIT BY MONDAY EVENING AS THE SURFACE PRESSURE
GRADIENT TIGHTENS, HOWEVER THE STRONGEST WINDS WILL OCCUR BEYOND
30 NM OFFSHORE. GUIDANCE SUGGESTS THE OUTER WATERS WILL LIKELY
SEE 20-25 KT WIND GUSTS BY MONDAY EVENING. SEAS WILL WILL ALSO
BEGIN TO TREND UPWARD EARLY IN THE COMING WEEK AS AN ONGOING
NORTHWESTERLY SWELL BUILDS TO 8 TO 10 FT, HIGHEST OVER THE OUTER
WATERS. FOR NOW, HAVE DECIDED TO ISSUE A SMALL CRAFT ADVISORY FOR
THE OUTER WATERS FROM EARLY SUNDAY EVENING THROUGH MONDAY NIGHT.
THIS ADVISORY MAY NEED TO BE EXPANDED TO INCLUDE THE INNER WATERS
IF FORECAST SEAS INCREASE BY 1-2 FT. NOTE THE ADVISORY WILL LIKELY
NEED TO BE EXTENDED BEYOND MONDAY NIGHT, BUT HAVE DECIDED TO
HOLD OFF ON PULLING THE ADVISORY THIS FAR OUT IN TIME FOR NOW. -TK
PQR WATCHES/WARNINGS/ADVISORIES
OR...HEAT ADVISORY FROM 10 AM SUNDAY TO 10 PM PDT MONDAY FOR
ORZ108>125.
WA...HEAT ADVISORY FROM 10 AM SUNDAY TO 10 PM PDT MONDAY FOR
WAZ204>210.
PZ...SMALL CRAFT ADVISORY FROM 5 PM SUNDAY TO 5 AM PDT TUESDAY FOR
PZZ271>273.
WWW.WEATHER.GOV/PORTLAND
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSPORTLAND
X.COM/NWSPORTLAND
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