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Active official alertUpdated

Dense Fog Advisory for Lower Columbia River; Tualatin Valley; Inner Portland Metro +7 more

Official alert fields

What you need to know

Effective
Ends or expires
Official severity
Moderate
Official urgency
Expected
Official certainty
Likely

What is happening

What: Visibility one quarter mile or less in dense fog. Impacts: Low visibility could make driving conditions hazardous. Where: In Oregon, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, Tualatin Valley, and West Central Willamette Valley. In Washington, Cowlitz...

What the bulletin says to do

If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.

Full official description

Bulletin details

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Oregon, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, Tualatin Valley, and West Central Willamette Valley. In Washington, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, and North Clark County Lowlands. * WHEN...From 1 AM to 10 AM PST Sunday. * IMPACTS...Low visibility could make driving conditions hazardous.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

1 captured
  1. Alert

    Dense Fog Advisory issued October 31 at 6:40PM PDT until November 1 at 10:00AM PST by NWS Portland OR

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Portland OR. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections