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Frost Advisory


URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1023 AM PDT Fri Oct 30 2026

ORZ101>103-107-108-111>113-119-124-125-WAZ203-204-206-207-310700-
/O.CON.KPQR.FR.Y.0017.261031T0700Z-261031T1600Z/
Clatsop County Coast-Tillamook County Coast-Central Coast of
Oregon-Central Oregon Coast Range-Lower Columbia River-Inner
Portland Metro-East Portland Metro-Outer Southeast Portland Metro-
West Columbia River Gorge of Oregon above 500 ft-Cascade
Foothills of Marion and Linn Counties-Lane County Cascade
Foothills-Willapa Hills-Cowlitz County Lowlands-Inner Vancouver
Metro-East Clark County Lowlands-
Including the cities of Eagle Creek, Neskowin, Evergreen, Waldport,
Rockaway Beach, Boring, Estacada, Astoria, Seaside, Florence,
Corbett, Vancouver, Camas, Brooklyn, Portland, Horton,
Mary`s Peak, Manzanita, Vida, Troutdale, Sandy, Castle Rock, St.
Helens, Lincoln City, Salmon Creek, Newport, Happy Valley, Fairview,
Washougal, McKenzie Bridge, Woodland, Mill City, Kalama, Scappoose,
Pacific City, Oregon City, Gresham, Longview, Kelso, Cannon Beach,
Oakridge, Rainier, Silver Falls, Warrenton, Sellwood, Valsetz,
Clatskanie, Tillamook, Detroit, and Lake Oswego
1023 AM PDT Fri Oct 30 2026

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PDT
SATURDAY...

* WHAT...Temperatures of 36 degrees or lower will result in frost
  formation.

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

* WHEN...From midnight tonight to 9 AM PDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
  outdoor plants may be killed if left uncovered.

* ADDITIONAL DETAILS...There is a 20-30% chance that temperatures
  will fall below 32 degrees, especially for locations that do not
  develop fog. Frost and freeze headlines are only issued through the
  growing season of April 1 through October 31. Therefore, frost or
  freeze headlines will not be issued beginning November 1, even
  though similar low temperatures are possible. Frost and freeze
  headlines will no longer be issued this growing season for the
  Upper Hood River Valley, southern Willamette Valley, south
  Washington Cascade Foothills, and north Oregon Coast Range as these
  locations have already experienced a hard freeze earlier in
  October.

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.

&&

$$

03

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1023 AM PDT Fri Oct 30 2026

ORZ105-109-114-115-123-WAZ205-310700-
/O.UPG.KPQR.FZ.A.0006.261031T0700Z-261031T1600Z/
/O.EXA.KPQR.FR.Y.0017.261031T0700Z-261031T1600Z/
Central Oregon Coast Range Lowlands-Tualatin Valley-West Central
Willamette Valley-East Central Willamette Valley-Clackamas County
Cascade Foothills-North Clark County Lowlands-
Including the cities of Hockinson, Hillsboro, Hoskins, Stayton,
Keizer, Wilsonville, Woodburn, La Center, Brush Prairie, Silverton,
Brightwood, Welches, Molalla, Salem, Tigard, Forest Grove,
Ridgefield, Sheridan, Rhododendron, Cherryville, Mapleton,
McMinnville, Grand Ronde, Alma, Dallas, Newberg, Alsea, Battle
Ground, Sherwood, Rockcreek, and Monmouth
1023 AM PDT Fri Oct 30 2026

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PDT
SATURDAY...

* WHAT...Temperatures of 36 degrees or lower will result in frost
  formation.

* WHERE...In Oregon, Clackamas County Cascade Foothills, East Central
  Willamette Valley, Tualatin Valley, West Central Willamette Valley,
  and Central Oregon Coast Range Lowlands. In Washington, North Clark
  County Lowlands.

* WHEN...From midnight tonight to 9 AM PDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
  outdoor plants may be killed if left uncovered.

* ADDITIONAL DETAILS...There is a 20-30% chance that temperatures
  will fall below 32 degrees, especially for locations that do not
  develop fog. Frost and freeze headlines are only issued through the
  growing season of April 1 through October 31. Therefore, frost or
  freeze headlines will not be issued beginning November 1, even
  though similar low temperatures are possible. Frost and freeze
  headlines will no longer be issued this growing season for the
  Upper Hood River Valley, southern Willamette Valley, south
  Washington Cascade Foothills, and north Oregon Coast Range as these
  locations have already experienced a hard freeze earlier in
  October.

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.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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