757
FXUS66 KSEW 020309
AFDSEW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
809 PM PDT FRI MAY 1 2026
SYNOPSIS
WARM AND DRY CONDITIONS ARE EXPECTED TO CONTINUE OVER THE
WEEKEND. TEMPERATURES REMAIN ON TRACK TO WARM INTO THE UPPER
70S TO MID 80S BY SUNDAY INTO MONDAY. DRY AND COOLER, BUT STILL
SEASONABLY WARM WEATHER, LOOKS TO LINGER THROUGH THE REMAINDER
OF NEXT WEEK.
SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/
THE LATEST FORECAST REMAINS ON TRACK WITH NO UPDATES THIS
EVENING. AN UPPER LEVEL LOW REMAINS OFFSHORE AND WILL PUSH SOME
HIGH CLOUDS OVER THE INTERIOR OF WESTERN WASHINGTON THROUGH
THIS EVENING.
SOME INCREASING LIGHT ONSHORE FLOW WILL PROVIDE SOME STRATUS
ALONG THE COAST SPREADING INLAND SATURDAY MORNING. STRATUS
SHOULD DISSIPATE BY THE AFTERNOON HOURS LEAVING ANOTHER WARM AND
DRY DAY, WITH HIGH TEMPERATURES WARMING SLIGHTLY IN THE MID TO
UPPER 70S WITH WIDESPREAD AREAS OF MINOR HEATRISK ACROSS THE
INTERIOR. PROGRESSING INTO SUNDAY, TEMPS WILL WARM EVEN FURTHER
WITH AREAS IN THE LOW 80S AND MID 80S WITH AREAS OF MODERATE
HEATRISK. THE WARMEST AREAS CORRELATED WITH MODERATE HEATRISK
ARE GENERALLY PLACES IN THE SOUTHWEST INTERIOR AND AREAS IN THE
CASCADE VALLEYS.
MODERATE HEATRISK IMPACTS INCLUDE THOSE SENSITIVE TO THE HEAT
AND WHO MAY BE WITHOUT ADEQUATE COOLING. ADDITIONALLY, THOUGH IT
WILL BE WARM OUTSIDE, IT IS IMPORTANT TO REMEMBER THAT AREA
STREAMS, RIVERS, LAKES AND THE OCEAN, INCLUDING PUGET SOUND, WILL
STILL HAVE VERY COLD TEMPERATURES OFTEN AROUND 50 DEGREES OR
COLDER. PLEASE BE CAUTIOUS AROUND COLDER WATER DESPITE THE AIR
TEMPERATURES. RELATIVE HUMIDITY ALSO LOOKS TO BE UNSEASONABLY
LOW ACROSS WESTERN WASHINGTON ON SUNDAY. THIS POSES AN ELEVATED
RISK OF FIRE DANGER PRIMARILY AMONG DRY GRASSES OR DEAD AND DRY
VEGETATION.
LONG TERM /MONDAY THROUGH FRIDAY/
WARM AND DRY CONDITIONS CONTINUE ON MONDAY WITH INCREASED
ONSHORE FLOW, HIGH TEMPERATURES WILL DROP, BUT WILL STILL REMAIN
WARM, IN THE UPPER 70S. TEMPERATURES WILL STAY IN THE LOW 70S
THROUGHOUT THE REMAINDER OF THE WEEK - WITH NO PRECIPITATION
EXPECTED AT THIS TIME.
MAZURKIEWICZ
AVIATION
AN UPPER LEVEL LOW WILL CONTINUE TO DIG SOUTHWARD TONIGHT, ALLOWING
WINDS ALOFT TO SHIFT FROM SW TO NE. SURFACE WINDS EASING THIS
EVENING WITH MOST LOCATIONS SETTLING INTO LIGHT AND VARIABLE WHILE
OTHERS SUCH AS SEA AND PAE RETAIN NW AND CLM AND HQM FAVORING MORE
W, WITH BOTH GROUPS SEEING SPEEDS GENERALLY 4-8 KTS. PREDOMINANTLY
NORTHERLY WINDS SATURDAY WITH SPEEDS INCREASING TO 8-15 KTS FOR MOST
TERMINALS BY THE LATE MORNING/EARLY AFTERNOON.
WIDESPREAD VFR CONDITIONS PREVAIL ACROSS MUCH OF THE AREA WITH
PERSISTENT HIGH CLOUDS, ALTHOUGH MARINE STRATUS HAS GIVEN RISE TO
MVFR TO IFR CONDITIONS ALONG THE COAST. THIS WILL PUSH INLAND
OVERNIGHT BUT SHOULD REMAIN WEST OF PWT AND OLM, LIMITING IMPACTS TO
FORECAST TERMINALS. ANY INVADING STRATUS SHOULD RETREAT AGAIN
TOMORROW MORNING.
KSEA...VFR THROUGH THE TAF PERIOD WITH HIGH CLOUDS. NW WINDS 5-8 KT
BECOMING NE 6 KT OR LESS OVERNIGHT. WINDS TOMORROW DURING THE DAY N
8-15 KT.
18/62
MARINE
THE PATTERN OVERALL REMAIN STABLE THROUGH THE WEEKEND INTO NEXT WEEK
WITH HIGH PRESSURE WELL OFFSHORE AND LOW PRESSURE INLAND.
GUSTY NORTHWESTERLY WINDS OVER THE FAR OUTER COASTAL WATERS WILL
DECREASE TONIGHT, AND A PUSH DOWN THE STRAIT OF JUAN DE FUCA THIS
EVENING MAY REACH GUSTS 20-25 KT AT TIMES. INHERITED HEADLINES
COVERING THIS LOOK GOOD TO EXPIRE AT 11 PM PDT AS GENERAL WIND
TRENDS CONTINUE TO EASE. OTHERWISE, WINDS LOOK RELATIVELY LIGHT
UNTIL MONDAY WHEN MORE ROBUST ONSHORE FLOW RETURNS AND WESTERLY
PUSHES DOWN THE STRAIT IN THE EVENINGS RESUME MONDAY NIGHT. SEAS
REMAIN IN THE 4-8 FT RANGE THROUGH THE FORECAST PERIOD.
62/18
HYDROLOGY
NO RIVER FLOODING IS EXPECTED DURING THE NEXT 7 DAYS.
SEW WATCHES/WARNINGS/ADVISORIES
WA...NONE.
PZ...SMALL CRAFT ADVISORY UNTIL 11 PM PDT THIS EVENING FOR CENTRAL
U.S. WATERS STRAIT OF JUAN DE FUCA-COASTAL WATERS FROM
JAMES ISLAND TO POINT GRENVILLE 10 TO 60 NM-COASTAL
WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER 10 TO 60
NM-EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA.
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