Alert USA
weather NWS moderate Lower Columbia River; Tualatin Valley; Inner Portland Metro; East Portland Metro; West Central Willamette Valley; East Central Willamette Valley; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands October 31, 2026 at 3:47 PM

Dense Fog Advisory

* 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, East Clark County Lowlands, Inner Vancouver Metro, and North Clark County Lowlands.

* WHEN...Until noon PDT today.

* IMPACTS...Low visibility could make driving conditions hazardous.

Local conditions in Lower Columbia River; Tualatin Valley; Inner Portland Metro; East Portland Metro; West Central Willamette Valley; East Central Willamette Valley; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands may affect travel, public safety, or daily routines. Stay informed and adjust plans if conditions change.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Residents should be prepared for possible effects on travel, public safety, and daily routines while the situation remains active.

Recommended steps: stay informed via official sources; avoid non-essential travel in the area; secure outdoor items if weather is involved; check on family and neighbors.

Alert USA is tracking this developing situation and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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