934
WWUS76 KSEW 201030
NPWSEW
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
330 AM PDT MON JUL 20 2026
WAZ305-310-311-322-324-325-327-202230-
/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, LELAND, SUDDEN VALLEY, PORT LUDLOW,
ANACORTES, BURLINGTON, DARRINGTON, SEABECK, PORT TOWNSEND,
SEQUIM, HOLLY, MOUNT VERNON, QUILCENE, BELLINGHAM, BRINNON, AND
GRANITE FALLS
330 AM PDT MON JUL 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO 11 PM PDT
WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES UP TO 85 TO 90
DEGREES EXPECTED AND LOW TEMPERATURES FROM 55 TO 62 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 TUESDAY 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>316-323-202230-
/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 KENT, EDMONDS, PINE LAKE, COVINGTON-SAWYER-W, KENMORE,
ELK PLAIN, NEWPORT HILLS, SOUTH HILL, PRAIRIE RIDGE, KINGSGATE,
TACOMA, ENUMCLAW, SEATTLE, MARYSVILLE, NORTH BEND, RICHMOND
HIGHLANDS, SNOHOMISH, FEDERAL WAY, BREMERTON, LYNNWOOD, BOTHELL,
MIRRORMONT, EASTGATE, KIRKLAND, SILVERDALE, DUVALL, MONROE,
EVERETT, MERCER ISLAND, MAPLE VALLEY, SAHALEE, RENTON, LAKE
STEVENS, LEA HILL, AND REDMOND
330 AM PDT MON JUL 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO 11 PM PDT
WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES UP TO 88 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 TUESDAY 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>319-321-329-202230-
/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 LACEY, CHEHALIS, MCCLEARY, HUMPTULIPS, AMANDA PARK,
ELMA, MOSSYROCK, MONTESANO, GRISDALE, CLEARWATER, QUINAULT,
ROCHESTER, SKOKOMISH, OLYMPIA, GRAND MOUND, FORKS, TUMWATER,
BEAVER, FORDS PRAIRIE, AND MORTON
330 AM PDT MON JUL 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY TO 11 PM PDT
WEDNESDAY...
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES UP TO 90 TO 95
DEGREES EXPECTED AND LOW TEMPERATURES FROM 55 TO 60 DEGREES. THIS
WILL POSE A MODERATE 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 TUESDAY 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.
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