494
FXUS66 KPQR 072204 AAA
AFDPQR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND OR
304 PM PDT FRI AUG 7 2026
SYNOPSIS
WARM AND DRY CONDITIONS CONTINUE TODAY, BUT
TEMPERATURES ARE EXPECTED TO GRADUALLY MODERATE TOWARD AUGUST
NORMS BY SUNDAY, CONTINUING INTO EARLY NEXT WEEK. RENEWED
ONSHORE FLOW WILL KEEP SMOKE EAST OF THE CASCADES. PRECIPITATION
IS NOT EXPECTED DURING THE NEXT WEEK ACROSS THE AREA.
DISCUSSION...TODAY THROUGH THURSDAY
SATELLITE IMAGERY AND
SURFACE OBSERVATIONS AS OF EARLY FRIDAY AFTERNOON DEPICTS MOSTLY
SUNNY SKIES ACROSS INTERIOR LOCATIONS WITH MARINE CLOUDS
DISSIPATING ALONG THE COAST. CLOUDS SHOULD CONTINUE BREAKING UP
ALONG THE COAST AND LEAD TO SOME BRIEF AFTERNOON SUNSHINE. CAN'T
RULE OUT SOME CLOUDS HUGGING THE IMMEDIATE COASTLINE AS WE
MAINTAIN MOIST ONSHORE FLOW. THIS ONSHORE FLOW, WHERE WINDS COME
FROM THE WEST/NORTHWEST, IS WHAT'S CLEARING WESTERN OREGON AND
WASHINGTON FROM ALL THE SMOKE AND HAZE THESE LAST SEVERAL DAYS.
EXPECT THESE WINDS FROM THE WEST/NORTHWEST TO KEEP PUSHING SMOKE
EASTWARD AS WE HEAD INTO THE WEEKEND.
HIGH PRESSURE WILL MAINTAIN DRY AND WARM CONDITIONS TODAY
THROUGH THE WEEKEND, AFTERNOON HIGHS FORECAST IN THE UPPER 80S
TO LOW 90S TODAY. A SHORTWAVE TROUGH APPROACHING THE COAST
TONIGHT INTO EARLY SATURDAY MORNING WILL STRENGTHEN ONSHORE
FLOW AND LIKELY DEEPEN THE MARINE LAYER ENOUGH TO PUSH CLOUDS
INLAND UP THE LOWER COLUMBIA RIVER VALLEY INTO THE
PORTLAND/VANCOUVER METRO. AFTERNOON SUN SHOULD ALLOW TEMPS TO
WARM AGAIN INTO THE MID TO UPPER 80S ACROSS THE INTERIOR
LOWLANDS SATURDAY AFTERNOON. WHILE WINDS FROM THE WEST/NORTHWEST
GENERALLY REMAIN AROUND 15 MPH OR WEAKER ACROSS MOST AREAS, THE
BREEZIEST LOCATIONS WILL BE ALONG THE CENTRAL COLUMBIA RIVER
GORGE AND PORTIONS OF THE UPPER HOOD RIVER VALLEY WHERE GAP
WINDS ARE FORECAST TO GUST UP TO 30-35 MPH, WITH A 20-30% CHANCE
FOR GUSTS EXCEEDING 40 MPH. COMBINED WITH LOW RELATIVE HUMIDITY
AND DRY FUELS, THESE CONDITIONS WOULD BE FAVORABLE FOR RAPID
FIRE SPREAD. NWS PENDLETON HAS ISSUED A RED FLAG WARNING FOR THE
CENTRAL GORGE AND PORTIONS OF EASTERN HOOD RIVER COUNTY, IN
EFFECT FROM 11 AM TODAY THROUGH 11 PM SATURDAY. ELSEWHERE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON, HIGHER RELATIVE
HUMIDITY AND WEAKER WINDS WILL NOT BE FAVORABLE FOR RAPID FIRE
SPREAD.
THERE IS HIGH CONFIDENCE TEMPERATURES TREND INTO THE LOW TO MID
80S SUNDAY THROUGH EARLY NEXT WEEK AS A MORE ZONAL FLOW PATTERN
EMERGES. MAJORITY OF ENSEMBLE MEMBERS SHOW A WEAK TROUGH
APPROACHING THE PACIFIC NORTHWEST MIDDLE OF NEXT WEEK, HOWEVER,
IT APPEARS TO BE A DRY TROUGH WITH NO PRECIPITATION CHANCES
EXPECTED. -10
AVIATION...THROUGH 00Z SUN
WEST TO SOUTHWEST FLOW ALOFT
CONTINUES THROUGH THE PERIOD AS HIGH PRESSURE REMAINS OVER THE
REGION. CURRENTLY, MARINE STRATUS REMAINS JUST ALONG THE COAST,
RESULTING IN CIGS BOUNCING BETWEEN IFR AND VFR, NOTABLY AT KONP.
INLAND TERMINALS WILL STAY VFR THROUGH THE TAF PERIOD. AS FOR
COASTAL TERMINALS, FROM NOW UNTIL 03Z SAT, CONDITIONS WILL
CONTINUE TO BOUNCE BETWEEN IFR AND VFR AS THE MARINE STRATUS
FLIRTS WITH THE COASTLINE. PROBABILISTIC GUIDANCE CONTINUES TO
SUGGEST A 50-60% CHANCE OF VFR CONDITIONS THROUGH 03Z SAT, THEN A
70-80% CHANCE OF MVFR, 50-60% OF IFR, AND 30-50% OF LIFR BETWEEN
03-17Z SAT. NORTHWESTERLY WINDS AROUND 5-10 KT THIS AFTERNOON WILL
WEAKEN THIS EVENING AT ALL TERMINALS, THEN INCREASE AGAIN TO 5-10
KT TOMORROW AFTERNOON. KONP MAY SEE GUSTS UP TO 20 KT TOMORROW
AROUND 18Z SAT AS WINDS OVER THE WATERS STRENGTHEN.
KPDX AND APPROACHES...VFR CONDITIONS WITH CLEAR SKIES THROUGH
PERIOD. NORTHWEST WINDS AROUND 6-8 KT THIS AFTERNOON WILL DECREASE
THIS EVENING, THEN INCREASE ONCE AGAIN TO 6-8 KT TOMORROW
AFTERNOON.
~12
MARINE
HIGH PRESSURE OFFSHORE WILL MAINTAIN NORTHERLY WINDS
THROUGH THE WEEKEND AND INTO NEXT WEEK. WINDS WILL REMAIN 20 KT
OR LESS THROUGH SATURDAY MORNING. SURFACE PRESSURE GRADIENTS WILL
THEN TIGHTEN SATURDAY AFTERNOON, BRINGING INCREASED CHANCES FOR
WIND GUSTS UP TO 25 KT SOUTH OF CAPE FOULWEATHER THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK. SPECIFICALLY, THERE IS A 40%
CHANCE FOR SMALL CRAFT WIND GUSTS ON SATURDAY SOUTH OF CAPE
FOULWEATHER, THEN INCREASED CHANCES OF 50-70% ON SUNDAY. WIND
DRIVEN SEAS ARE EXPECTED TO REMAIN AROUND 4 TO 6 FT THROUGH THE
NEXT WEEK.
~12/DH
PQR WATCHES/WARNINGS/ADVISORIES
OR...NONE.
WA...NONE.
PZ...NONE.
WWW.WEATHER.GOV/PORTLAND
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSPORTLAND
X.COM/NWSPORTLAND
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