191
WWUS76 KSEW 211238
NPWSEW
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
538 AM PDT TUE JUL 21 2026
WAZ305-310-311-322-324-325-327-212300-
/O.CON.KSEW.HT.Y.0003.260721T1700Z-260723T0600Z/
FOOTHILLS AND VALLEYS OF THE NORTH CASCADES-LOWLANDS OF WESTERN
WHATCOM COUNTY-LOWLANDS OF WESTERN SKAGIT AND NORTHWESTERN
SNOHOMISH COUNTIES-NORTHERN HOOD CANAL-PORT TOWNSEND AREA-EASTERN
STRAIT OF JUAN DE FUCA-LAKE CRESCENT AREA INCLUDING US 101-
INCLUDING SEDRO-WOOLLEY, SEQUIM, BELLINGHAM, BRINNON, PORT
LUDLOW, SUDDEN VALLEY, BURLINGTON, LELAND, QUILCENE, MOUNT
VERNON, SEABECK, GRANITE FALLS, DARRINGTON, PORT TOWNSEND, HOLLY,
AND ANACORTES
538 AM PDT TUE JUL 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 11 PM
PDT WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES IN THE MID 80S TO
LOWER 90S AND LOW TEMPERATURES NEAR 60 DEGREES. THIS WILL POSE A
MODERATE RISK OF HEAT-RELATED ILLNESS.
* WHERE...EASTERN STRAIT OF JUAN DE FUCA, FOOTHILLS AND VALLEYS OF
THE NORTH CASCADES, LAKE CRESCENT AREA INCLUDING US 101, LOWLANDS
OF WESTERN SKAGIT AND NORTHWESTERN SNOHOMISH COUNTIES, LOWLANDS OF
WESTERN WHATCOM COUNTY, NORTHERN HOOD CANAL, AND PORT TOWNSEND
AREA.
* WHEN...FROM 10 AM THIS MORNING TO 11 PM PDT WEDNESDAY.
* IMPACTS...HEAT WILL SIGNIFICANTLY INCREASE THE RISK OF
HEAT-RELATED ILLNESSES FOR THOSE WHO ARE SENSITIVE TO HEAT,
ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING OR ADEQUATE HYDRATION.
* ADDITIONAL DETAILS...AREAS CLOSEST TO THE WATER WILL EXPERIENCE
COOLER DAYTIME HIGH TEMPERATURES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. YOUNG CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY
CIRCUMSTANCES.
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
FOR SHELTERING INFORMATION AND OTHER HUMAN SERVICES IN YOUR AREA,
DIAL 2 1 1 DURING BUSINESS HOURS OR VISIT WA211.ORG ANYTIME.
WAZ306>308-312>316-323-212300-
/O.CON.KSEW.HT.Y.0003.260721T1700Z-260723T0600Z/
FOOTHILLS AND VALLEYS OF SNOHOMISH AND NORTHERN KING COUNTIES-
FOOTHILLS AND VALLEYS OF CENTRAL KING COUNTY-FOOTHILLS AND
VALLEYS OF PIERCE AND SOUTHERN KING COUNTIES-DOWNTOWN EVERETT /
MARYSVILLE AREA-SHORELINE / LYNNWOOD / SOUTH EVERETT AREA-
EASTSIDE-CITY OF SEATTLE-LOWLANDS OF PIERCE AND SOUTHERN KING
COUNTIES-EASTERN KITSAP COUNTY-
INCLUDING DUVALL, KINGSGATE, SEATTLE, PINE LAKE, TACOMA, RENTON,
ELK PLAIN, PRAIRIE RIDGE, KENMORE, LEA HILL, NORTH BEND,
COVINGTON-SAWYER-W, MONROE, EDMONDS, LYNNWOOD, MIRRORMONT,
ENUMCLAW, MAPLE VALLEY, SNOHOMISH, SOUTH HILL, KIRKLAND, NEWPORT
HILLS, SILVERDALE, REDMOND, LAKE STEVENS, SAHALEE, RICHMOND
HIGHLANDS, EASTGATE, BREMERTON, BOTHELL, KENT, FEDERAL WAY,
MARYSVILLE, EVERETT, AND MERCER ISLAND
538 AM PDT TUE JUL 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 11 PM
PDT WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES UP TO 95 DEGREES
EXPECTED AND LOW TEMPERATURES FROM 60 TO 65 DEGREES. THIS WILL
POSE A MODERATE TO MAJOR RISK OF HEAT-RELATED ILLNESS.
* WHERE...EASTERN KITSAP COUNTY, CITY OF SEATTLE, DOWNTOWN EVERETT /
MARYSVILLE AREA, EASTSIDE, FOOTHILLS AND VALLEYS OF CENTRAL KING
COUNTY, FOOTHILLS AND VALLEYS OF PIERCE AND SOUTHERN KING
COUNTIES, FOOTHILLS AND VALLEYS OF SNOHOMISH AND NORTHERN KING
COUNTIES, LOWLANDS OF PIERCE AND SOUTHERN KING COUNTIES, AND
SHORELINE / LYNNWOOD / SOUTH EVERETT AREA.
* WHEN...FROM 10 AM THIS MORNING TO 11 PM PDT WEDNESDAY.
* IMPACTS...HEAT WILL SIGNIFICANTLY INCREASE THE RISK OF
HEAT-RELATED ILLNESSES FOR THOSE WHO ARE SENSITIVE TO HEAT,
ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING OR ADEQUATE HYDRATION.
* ADDITIONAL DETAILS...AREAS CLOSEST TO THE WATER WILL EXPERIENCE
COOLER DAYTIME HIGH TEMPERATURES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. YOUNG CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY
CIRCUMSTANCES.
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
FOR SHELTERING INFORMATION AND OTHER HUMAN SERVICES IN YOUR AREA,
DIAL 2 1 1 DURING BUSINESS HOURS OR VISIT WA211.ORG ANYTIME.
WAZ309-317>319-321-329-212300-
/O.CON.KSEW.HT.Y.0003.260721T1700Z-260723T0600Z/
FOOTHILLS AND VALLEYS OF THURSTON AND LEWIS COUNTIES-OLYMPIA AND
SOUTHERN PUGET SOUND-LOWLANDS OF LEWIS AND SOUTHERN THURSTON
COUNTIES-MIDDLE CHEHALIS RIVER VALLEY-SOUTHERN HOOD CANAL-
FOOTHILLS OF THE WESTERN AND SOUTHERN OLYMPIC PENINSULA-
INCLUDING MONTESANO, MOSSYROCK, LACEY, ELMA, QUINAULT, CHEHALIS,
CLEARWATER, ROCHESTER, MORTON, GRAND MOUND, SKOKOMISH, FORKS,
FORDS PRAIRIE, MCCLEARY, AMANDA PARK, TUMWATER, HUMPTULIPS,
BEAVER, OLYMPIA, AND GRISDALE
538 AM PDT TUE JUL 21 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 11 PM
PDT WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES IN THE MID 80S TO MID
90S TODAY AND UPPER 80S TO NEAR 100 WEDNESDAY. LOW TEMPERATURES 60
TO 65 DEGREES. THIS WILL POSE A MODERATE TO MAJOR RISK OF
HEAT-RELATED ILLNESS.
* WHERE...FOOTHILLS OF THE WESTERN AND SOUTHERN OLYMPIC PENINSULA,
MIDDLE CHEHALIS RIVER VALLEY, SOUTHERN HOOD CANAL, FOOTHILLS AND
VALLEYS OF THURSTON AND LEWIS COUNTIES, LOWLANDS OF LEWIS AND
SOUTHERN THURSTON COUNTIES, AND OLYMPIA AND SOUTHERN PUGET SOUND.
* WHEN...FROM 10 AM THIS MORNING TO 11 PM PDT WEDNESDAY.
* IMPACTS...HEAT WILL SIGNIFICANTLY INCREASE THE RISK OF
HEAT-RELATED ILLNESSES FOR THOSE WHO ARE SENSITIVE TO HEAT,
ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING OR ADEQUATE HYDRATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. YOUNG CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES UNDER ANY
CIRCUMSTANCES.
TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
FOR SHELTERING INFORMATION AND OTHER HUMAN SERVICES IN YOUR AREA,
DIAL 2 1 1 DURING BUSINESS HOURS OR VISIT WA211.ORG ANYTIME.
44
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