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Frost Advisory


URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
1104 PM PDT Sun Oct 11 2026

WAZ308-309-316>318-320>322-330-121500-
/O.CON.KSEW.FR.Y.0010.261012T0700Z-261012T1500Z/
Foothills and Valleys of Pierce and Southern King Counties-
Foothills and Valleys of Thurston and Lewis Counties-Lowlands of
Pierce and Southern King Counties-Olympia and Southern Puget
Sound-Lowlands of Lewis and Southern Thurston Counties-Willapa
and Black Hills-Southern Hood Canal-Northern Hood Canal-Northern
Washington Coast-
Including Lea Hill, Leland, Kent, Renton, Fords Prairie, South Hill,
Ozette, Elk Plain, Quillayute, Quilcene,
Covington-Sawyer-w, Port Ludlow, La Push, Seabeck, Maple Valley,
Tacoma, Skokomish, Brinnon, Mossyrock, Prairie Ridge, Pe Ell, Holly,
Olympia, Tumwater, Federal Way, Lacey, Chehalis, Grand Mound, Neah
Bay, Rochester, Queets, Morton, and Enumclaw
1104 PM PDT Sun Oct 11 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT MONDAY...

* WHAT...Temperatures as low as 30 to 36 degrees Monday morning could
  result in frost formation.

* WHERE...Northern Hood Canal, Northern Washington Coast, Southern
  Hood Canal, Foothills and Valleys of Pierce and Southern King
  Counties, Foothills and Valleys of Thurston and Lewis Counties,
  Lowlands of Lewis and Southern Thurston Counties, Lowlands of
  Pierce and Southern King Counties, Olympia and Southern Puget
  Sound, and Willapa and Black Hills.

* WHEN...Until 8 AM PDT Monday.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1039 PM PDT Sun Oct 11 2026

ORZ104-107-109-112>119-123>125-WAZ202-204>208-121500-
/O.CON.KPQR.FR.Y.0012.261012T0700Z-261012T1500Z/
North Oregon Coast Range Lowlands-Central Oregon Coast Range-
Tualatin Valley-East Portland Metro-Outer Southeast Portland
Metro-West Central Willamette Valley-East Central Willamette
Valley-Benton County Lowlands-Linn County Lowlands-Lane County
Lowlands-West Columbia River Gorge of Oregon above 500 ft-
Clackamas County Cascade Foothills-Cascade Foothills of Marion
and Linn Counties-Lane County Cascade Foothills-Willapa and
Wahkiakum Lowlands-Cowlitz County Lowlands-North Clark County
Lowlands-Inner Vancouver Metro-East Clark County Lowlands-South
Washington Cascade Foothills-
Including the cities of Glenwood, Rockcreek, Silverton, Toutle,
Wilsonville, Keizer, Brownsville, Battle Ground, Forest Grove,
Boring, Estacada, Amboy, Mary`s Peak, Cathlamet, Lebanon, Jewell,
Rosburg, Junction City, Evergreen, McKenzie Bridge, Tigard, Knappa,
Oakridge, Willapa, La Center, Monroe, Longview, Ridgefield, Brush
Prairie, Kelso, Lake Merwin, Vernonia, Cottage Grove, Creswell,
Philomath, Fairview, Hillsboro, Troutdale, Lebam, Necanicum,
Cherryville, Monmouth, Valsetz, Sherwood, Gresham, Sandy, Salmon
Creek, Rhododendron, Kalama, Welches, Newberg, Dallas, Albany,
Stayton, Castle Rock, Springfield, Silver Falls, Corvallis, Woodland,
Grand Ronde Indian Reservation, Camas, Horton, Corbett, Detroit,
Hockinson, Vida, Sheridan, Yacolt, Molalla, Mill City, Woodburn,
Washougal, Brightwood, Harrisburg, Eugene, Vancouver, Salem, and
McMinnville
1039 PM PDT Sun Oct 11 2026

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT MONDAY...

* WHAT...Temperatures as low as 33 to 36 will result in frost
  formation.

* WHERE...Portions of northwest and west central Oregon and southwest
  Washington.

* WHEN...Until 8 AM PDT Monday.

* 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 outdoor plants from the cold.
Consider temporarily moving outdoor potted plants indoors if they are
sensitive to cold temperatures.

Consider temporarily covering sensitive plants with a lightweight
cotton fabric (i.e., bedsheets, thin blankets), as this will help
retain heat and provide frost protection for your plants.

&&

$$

ACB

U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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