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Dense Fog Advisory issued December 10 at 2:31AM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...South Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, Portland West Hills and Chehalem Mountain, East Central Willamette Valley, and South Washington Cascade Foothills. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...In areas with temperatures below 30 degrees, fog may freeze on surfaces and accumulate. Freezing fog is not expected to be widespread.
NWS

Dense Fog Advisory issued December 10 at 2:31AM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Oregon, Inner Portland Metro. In Washington, Inner Vancouver Metro and North Clark County Lowlands. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...In areas with temperatures below 30 degrees, fog may freeze on surfaces and accumulate. Freezing fog is not expected to be widespread. As the winds become easterly, fog will lift in the eastern metro area.
NWS

Dense Fog Advisory issued December 10 at 2:31AM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...South Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, Portland West Hills and Chehalem Mountain, East Central Willamette Valley, and South Washington Cascade Foothills. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...In areas with temperatures below 30 degrees, fog may freeze on surfaces and accumulate. Freezing fog is not expected to be widespread.
NWS

Dense Fog Advisory issued December 10 at 2:31AM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Oregon, Inner Portland Metro. In Washington, Inner Vancouver Metro and North Clark County Lowlands. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...In areas with temperatures below 30 degrees, fog may freeze on surfaces and accumulate. Freezing fog is not expected to be widespread. As the winds become easterly, fog will lift in the eastern metro area.
NWS

Beach Hazards Statement issued December 10 at 2:25AM PST until December 10 at 4:00PM PST by NWS Medford OR

1 week 6 days ago
* WHAT...A moderate risk of sneaker waves is expected. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties. * WHEN...From Monday evening through Tuesday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr
NWS

Air Stagnation Advisory issued December 10 at 3:19AM MST until December 12 at 2:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of southwest and west central Idaho and northeast and southeast Oregon. * WHEN...Until 2 PM MST /1 PM PST/ Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
NWS

Air Stagnation Advisory issued December 10 at 3:19AM MST until December 12 at 2:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until noon MST today. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 10 at 3:19AM MST until December 10 at 12:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until noon MST today. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 10:28PM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...South Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, Portland West Hills and Chehalem Mountain, East Central Willamette Valley, and South Washington Cascade Foothills. * WHEN...Until 10 AM PST Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 10:28PM PST until December 10 at 10:00AM PST by NWS Portland OR

1 week 6 days ago
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...South Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, Portland West Hills and Chehalem Mountain, East Central Willamette Valley, and South Washington Cascade Foothills. * WHEN...Until 10 AM PST Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 9:27PM PST until December 10 at 12:00PM PST by NWS Pendleton OR

1 week 6 days ago
* WHAT...Visibility at 1 mile or less with areas of quarter mile or less as well as areas of freezing fog. * WHERE...Lower Columbia Basin of Oregon and Washington, Eastern Columbia River Gorge of Oregon, Northern Blue Mountains of Oregon, Foothills of the Northern Blue Mountains of Oregon, and Foothills of the Blue Mountains of Washington. * WHEN...Until noon PST Tuesday. * IMPACTS...Low visibility and areas of freezing fog could make driving conditions hazardous.
NWS

Air Stagnation Advisory issued December 9 at 10:27PM MST until December 12 at 2:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...An extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Portions of southwest and west central Idaho and northeast and southeast Oregon. * WHEN...Until 2 PM MST /1 PM PST/ Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
NWS

Air Stagnation Advisory issued December 9 at 10:27PM MST until December 12 at 2:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility less than one mile in dense fog. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until noon MST Tuesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 9:27PM PST until December 10 at 12:00PM PST by NWS Pendleton OR

1 week 6 days ago
* WHAT...Visibility at 1 mile or less with areas of quarter mile or less as well as areas of freezing fog. * WHERE...Lower Columbia Basin of Oregon and Washington, Eastern Columbia River Gorge of Oregon, Northern Blue Mountains of Oregon, Foothills of the Northern Blue Mountains of Oregon, and Foothills of the Blue Mountains of Washington. * WHEN...Until noon PST Tuesday. * IMPACTS...Low visibility and areas of freezing fog could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 10:27PM MST until December 10 at 12:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Air Stagnation Advisory, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility less than one mile in dense fog. * WHERE...Portions of southwest and west central Idaho and southeast Oregon. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until noon MST Tuesday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 8:09PM PST until December 10 at 12:00PM PST by NWS Spokane WA

1 week 6 days ago
* WHAT...Visibility one quarter to one half mile in dense freezing fog. * WHERE...Harrington, Ritzville, Badger Mountain Road, Coulee City, Odessa, Wilbur, Waterville, Creston, Mansfield, and Grand Coulee. * WHEN...Until noon PST Tuesday. * IMPACTS...Low visibility could make driving conditions hazardous. In addition, below freezing temperatures could result in slick roadways.
NWS