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Home Return to list Dense Fog Advisory 0010 Issued by the Seattle Forecast Office
Action: New Issued At: 2026-10-31 20:13:33 141 WWUS76 KSEW 010113 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 613 PM PDT Sat Oct 31 2026 WAZ312>318-323-011200- /O.NEW.KSEW.FG.Y.0010.261101T0900Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Eastern Kitsap County- Including Tacoma, Renton, Chehalis, Redmond, Olympia, Silverdale, Mercer Island, Federal Way, Kent, Edmonds, Lynnwood, Richmond Highlands, Kirkland, Kenmore, Bothell, Rochester, Lake Stevens, Bremerton, Marysville, Newport Hills, Kingsgate, Lacey, Tumwater, Seattle, Snohomish, Grand Mound, Everett, and Fords Prairie 613 PM PDT Sat Oct 31 2026 ...DENSE FOG ADVISORY IN EFFECT FROM 1 AM TO 10 AM PST SUNDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area. * WHEN...From 1 AM to 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog is expected to develop tonight and continue into Sunday morning for areas of Puget Sound. Localized freezing fog may also occur as temperatures fall into the 30s for many locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Action: Continued Issued At: 2026-10-31 22:30:07 155 WWUS76 KSEW 010329 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 829 PM PDT Sat Oct 31 2026 WAZ319-332-011200- /O.EXB.KSEW.FG.Y.0010.261101T0600Z-261101T1800Z/ Middle Chehalis River Valley-Lower Chehalis River Valley- Including Aberdeen, Elma, Hoquiam, Montesano, and McCleary 829 PM PDT Sat Oct 31 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lower Chehalis River Valley and Middle Chehalis River Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ WAZ312>318-323-011200- /O.CON.KSEW.FG.Y.0010.261101T0900Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Eastern Kitsap County- Including Tacoma, Renton, Chehalis, Redmond, Olympia, Silverdale, Mercer Island, Federal Way, Kent, Edmonds, Lynnwood, Richmond Highlands, Kirkland, Kenmore, Bothell, Rochester, Lake Stevens, Bremerton, Marysville, Newport Hills, Kingsgate, Lacey, Tumwater, Seattle, Snohomish, Grand Mound, Everett, and Fords Prairie 829 PM PDT Sat Oct 31 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 AM PST SUNDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area. * WHEN...From 1 AM to 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog is expected to develop tonight and continue into Sunday morning for areas of Puget Sound. Localized freezing fog may also occur as temperatures fall into the 30s for many locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Action: Time and Area Extended Issued At: 2026-10-31 22:30:07 155 WWUS76 KSEW 010329 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 829 PM PDT Sat Oct 31 2026 WAZ319-332-011200- /O.EXB.KSEW.FG.Y.0010.261101T0600Z-261101T1800Z/ Middle Chehalis River Valley-Lower Chehalis River Valley- Including Aberdeen, Elma, Hoquiam, Montesano, and McCleary 829 PM PDT Sat Oct 31 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lower Chehalis River Valley and Middle Chehalis River Valley. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ WAZ312>318-323-011200- /O.CON.KSEW.FG.Y.0010.261101T0900Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Eastern Kitsap County- Including Tacoma, Renton, Chehalis, Redmond, Olympia, Silverdale, Mercer Island, Federal Way, Kent, Edmonds, Lynnwood, Richmond Highlands, Kirkland, Kenmore, Bothell, Rochester, Lake Stevens, Bremerton, Marysville, Newport Hills, Kingsgate, Lacey, Tumwater, Seattle, Snohomish, Grand Mound, Everett, and Fords Prairie 829 PM PDT Sat Oct 31 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 AM PST SUNDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area. * WHEN...From 1 AM to 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog is expected to develop tonight and continue into Sunday morning for areas of Puget Sound. Localized freezing fog may also occur as temperatures fall into the 30s for many locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Action: Continued Issued At: 2026-11-01 05:40:22 441 WWUS76 KSEW 011139 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 339 AM PST Sun Nov 1 2026 WAZ312>318-323-011800- /O.CON.KSEW.FG.Y.0010.000000T0000Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Eastern Kitsap County- Including Kent, Richmond Highlands, Tacoma, Bremerton, Mercer Island, Renton, Seattle, Kirkland, Bothell, Lacey, Edmonds, Fords Prairie, Kenmore, Chehalis, Olympia, Redmond, Snohomish, Lynnwood, Kingsgate, Rochester, Newport Hills, Tumwater, Everett, Grand Mound, Federal Way, Silverdale, Marysville, and Lake Stevens 339 AM PST Sun Nov 1 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Localized freezing fog may also occur as temperatures fall into the 30s for many locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ WAZ319-332-011800- /O.CON.KSEW.FG.Y.0010.000000T0000Z-261101T1800Z/ Middle Chehalis River Valley-Lower Chehalis River Valley- Including Montesano, Hoquiam, Elma, McCleary, and Aberdeen 339 AM PST Sun Nov 1 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lower Chehalis River Valley and Middle Chehalis River Valley. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Action: Continued Issued At: 2026-11-01 05:40:22 441 WWUS76 KSEW 011139 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 339 AM PST Sun Nov 1 2026 WAZ312>318-323-011800- /O.CON.KSEW.FG.Y.0010.000000T0000Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Eastern Kitsap County- Including Kent, Richmond Highlands, Tacoma, Bremerton, Mercer Island, Renton, Seattle, Kirkland, Bothell, Lacey, Edmonds, Fords Prairie, Kenmore, Chehalis, Olympia, Redmond, Snohomish, Lynnwood, Kingsgate, Rochester, Newport Hills, Tumwater, Everett, Grand Mound, Federal Way, Silverdale, Marysville, and Lake Stevens 339 AM PST Sun Nov 1 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Eastern Kitsap County, City of Seattle, Downtown Everett / Marysville Area, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Localized freezing fog may also occur as temperatures fall into the 30s for many locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ WAZ319-332-011800- /O.CON.KSEW.FG.Y.0010.000000T0000Z-261101T1800Z/ Middle Chehalis River Valley-Lower Chehalis River Valley- Including Montesano, Hoquiam, Elma, McCleary, and Aberdeen 339 AM PST Sun Nov 1 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lower Chehalis River Valley and Middle Chehalis River Valley. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Action: Cancelled Issued At: 2026-11-01 07:59:41 985 WWUS76 KSEW 011359 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 559 AM PST Sun Nov 1 2026 WAZ312>319-323-332-011500- /O.CAN.KSEW.FG.Y.0010.000000T0000Z-261101T1800Z/ Downtown Everett / Marysville Area-Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-Lowlands of Pierce and Southern King Counties-Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Middle Chehalis River Valley-Eastern Kitsap County-Lower Chehalis River Valley- Including Kent, Richmond Highlands, Tacoma, McCleary, Bremerton, Mercer Island, Renton, Montesano, Seattle, Kirkland, Hoquiam, Bothell, Lacey, Edmonds, Fords Prairie, Kenmore, Chehalis, Olympia, Redmond, Snohomish, Lynnwood, Kingsgate, Rochester, Newport Hills, Tumwater, Everett, Grand Mound, Federal Way, Silverdale, Elma, Aberdeen, Marysville, and Lake Stevens 559 AM PST Sun Nov 1 2026 ...DENSE FOG ADVISORY IS CANCELLED... Areas of fog have largely lifted into a stratus layer this morning. Some isolated patches of fog may linger, though widespread dense fog is no longer expected. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||