586
WWUS76 KSEW 091052
NPWSEW
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
352 AM PDT THU APR 9 2026
WAZ305>307-310-320-325-327-329-091600-
/O.EXA.KSEW.FR.Y.0004.000000T0000Z-260409T1600Z/
FOOTHILLS AND VALLEYS OF THE NORTH CASCADES-FOOTHILLS AND VALLEYS
OF SNOHOMISH AND NORTHERN KING COUNTIES-FOOTHILLS AND VALLEYS OF
CENTRAL KING COUNTY-LOWLANDS OF WESTERN WHATCOM COUNTY-WILLAPA
AND BLACK HILLS-EASTERN STRAIT OF JUAN DE FUCA-LAKE CRESCENT AREA
INCLUDING US 101-FOOTHILLS OF THE WESTERN AND SOUTHERN OLYMPIC
PENINSULA-
INCLUDING DUVALL, CLEARWATER, DARRINGTON, AMANDA PARK, FORKS,
SAHALEE, SEQUIM, MONROE, PINE LAKE, NORTH BEND, GRISDALE, BEAVER,
HUMPTULIPS, GRANITE FALLS, BELLINGHAM, SUDDEN VALLEY, PE ELL,
EASTGATE, MIRRORMONT, AND QUINAULT
352 AM PDT THU APR 9 2026
..FROST ADVISORY IN EFFECT UNTIL 9 AM PDT THIS MORNING
* WHAT...TEMPERATURES AS LOW AS 32 TO 36 WILL RESULT IN FROST
FORMATION.
* WHERE...EASTERN STRAIT OF JUAN DE FUCA, FOOTHILLS AND VALLEYS OF
THE NORTH CASCADES, FOOTHILLS OF THE WESTERN AND SOUTHERN OLYMPIC
PENINSULA, LAKE CRESCENT AREA INCLUDING US 101, LOWLANDS OF
WESTERN WHATCOM COUNTY, FOOTHILLS AND VALLEYS OF CENTRAL KING
COUNTY, FOOTHILLS AND VALLEYS OF SNOHOMISH AND NORTHERN KING
COUNTIES, AND WILLAPA AND BLACK HILLS.
* WHEN...UNTIL 9 AM PDT THIS MORNING.
* IMPACTS...FROST COULD HARM SENSITIVE OUTDOOR VEGETATION. SENSITIVE
OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
WAZ308-309-312-317>319-091600-
/O.CON.KSEW.FR.Y.0004.000000T0000Z-260409T1600Z/
FOOTHILLS AND VALLEYS OF PIERCE AND SOUTHERN KING COUNTIES-
FOOTHILLS AND VALLEYS OF THURSTON AND LEWIS COUNTIES-DOWNTOWN
EVERETT / MARYSVILLE AREA-OLYMPIA AND SOUTHERN PUGET SOUND-
LOWLANDS OF LEWIS AND SOUTHERN THURSTON COUNTIES-MIDDLE CHEHALIS
RIVER VALLEY-
INCLUDING MORTON, COVINGTON-SAWYER-W, MCCLEARY, FORDS PRAIRIE,
MAPLE VALLEY, TUMWATER, LEA HILL, MONTESANO, OLYMPIA, LAKE
STEVENS, CHEHALIS, MOSSYROCK, ELK PLAIN, GRAND MOUND, MARYSVILLE,
PRAIRIE RIDGE, ROCHESTER, SNOHOMISH, LACEY, ELMA, ENUMCLAW, AND
SOUTH HILL
352 AM PDT THU APR 9 2026
..FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING
* WHAT...TEMPERATURES AS LOW AS 32 TO 36 WILL RESULT IN FROST
FORMATION.
* WHERE...MIDDLE CHEHALIS RIVER VALLEY, DOWNTOWN EVERETT /
MARYSVILLE AREA, FOOTHILLS AND VALLEYS OF PIERCE AND SOUTHERN KING
COUNTIES, FOOTHILLS AND VALLEYS OF THURSTON AND LEWIS COUNTIES,
LOWLANDS OF LEWIS AND SOUTHERN THURSTON COUNTIES, AND OLYMPIA AND
SOUTHERN PUGET SOUND.
* WHEN...UNTIL 9 AM PDT THIS MORNING.
* IMPACTS...FROST COULD HARM SENSITIVE OUTDOOR VEGETATION. SENSITIVE
OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
MGF
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