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Dense Fog Advisory issued December 9 at 6:53PM PST until December 9 at 10:00PM PST by NWS Pendleton OR

1 week 6 days ago
* WHAT...Visibility at 1 mile or less with areas of quarter mile or less * WHERE...Lower Columbia Basin of Oregon and Washington, Eastern Columbia River Gorge of Oregon between Arlington and Boardman, Northern Blue Mountains of Oregon, primarily along the I-84 Corridor, Foothills of the Northern Blue Mountains of Oregon primarily along the I-84 Corridor, and Foothills of the Blue Mountains of Washington along Hwy 12. * WHEN...Until 10 PM PST this evening. * IMPACTS...Low visibility could make driving conditions hazardous.
NWS

Dense Fog Advisory issued December 9 at 6:53PM PST until December 9 at 10:00PM PST by NWS Pendleton OR

1 week 6 days ago
* WHAT...Visibility at 1 mile or less with areas of quarter mile or less * WHERE...Lower Columbia Basin of Oregon and Washington, Eastern Columbia River Gorge of Oregon between Arlington and Boardman, Northern Blue Mountains of Oregon, primarily along the I-84 Corridor, Foothills of the Northern Blue Mountains of Oregon primarily along the I-84 Corridor, and Foothills of the Blue Mountains of Washington along Hwy 12. * WHEN...Until 10 PM PST this evening. * IMPACTS...Low visibility could make driving conditions hazardous.
NWS

Air Stagnation Advisory issued December 9 at 7:30PM 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...Lower Treasure Valley Zones, and Upper Weiser River. * 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

Air Stagnation Advisory issued December 9 at 7:30PM 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

Dense Fog Advisory issued December 9 at 7:30PM 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...Lower Treasure Valley Zones, and Upper Weiser River. * 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

Special Weather Statement issued December 9 at 4:49PM PST by NWS Pendleton OR

1 week 6 days ago
Fog to heavy fog has begun to form along the I-84 corridor between Arlington through Stanfield becoming progressively thicker as you move east. Fog is slowly progressing eastward and is expected to reach Pendleton. Fog has also been observed just north of the Tri-Cities along the 395 as well as along the I-82 through Coffin RD and steadily moving towards the city area. Visibilities range from 1 mile to less than 1/4 of a mile. Please drive with caution.
NWS

Special Weather Statement issued December 9 at 4:49PM PST by NWS Pendleton OR

1 week 6 days ago
Fog to heavy fog has begun to form along the I-84 corridor between Arlington through Stanfield becoming progressively thicker as you move east. Fog is slowly progressing eastward and is expected to reach Pendleton. Fog has also been observed just north of the Tri-Cities along the 395 as well as along the I-82 through Coffin RD and steadily moving towards the city area. Visibilities range from 1 mile to less than 1/4 of a mile. Please drive with caution.
NWS

Air Stagnation Advisory issued December 9 at 5:24PM MST until December 12 at 2:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. 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. * WHERE...Lower Treasure Valley Zones, and Upper Weiser River. * WHEN...For the Dense Fog Advisory, until noon MST Tuesday. For the Air Stagnation Advisory, until 2 PM MST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Air Stagnation Advisory issued December 9 at 5:24PM 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

Dense Fog Advisory issued December 9 at 5:24PM MST until December 10 at 12:00PM MST by NWS Boise ID

1 week 6 days ago
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. 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. * WHERE...Lower Treasure Valley Zones, and Upper Weiser River. * WHEN...For the Dense Fog Advisory, until noon MST Tuesday. For the Air Stagnation Advisory, until 2 PM MST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS

Beach Hazards Statement issued December 9 at 1:52PM PST until December 10 at 4:00PM PST by NWS Medford OR

2 weeks 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 9 at 11:03AM MST until December 12 at 2:00PM MST by NWS Boise ID

2 weeks 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 11:03AM MST until December 12 at 2:00PM MST by NWS Boise ID

2 weeks ago
* WHAT...Visibility has improved but patches of dense fog will continue until early afternoon. 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 southeast Oregon. * WHEN...Until 2 PM MST Thursday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.
NWS

Special Weather Statement issued December 9 at 9:53AM PST by NWS Spokane WA

2 weeks ago
Patchy dense freezing fog with near zero visibility has been reported in the Columbia Basin this morning. Fog is particularly dense along Interstate 90 around Ritzville, US-2 between Wilbur and Coulee City, and WA-243 from Vantage to Desert Aire. Expect rapid changes in visibility in this area. Use extra caution, reduce speeds, and allow extra travel time. Fog is expected to lift this afternoon.
NWS

Beach Hazards Statement issued December 9 at 2:27AM PST until December 10 at 4:00PM PST by NWS Medford OR

2 weeks 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 9 at 3:14AM MST until December 12 at 2:00PM MST by NWS Boise ID

2 weeks 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...In the valleys of southwest Idaho and southeast Oregon below 4000 feet. * 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 3:14AM MST until December 12 at 2:00PM MST by NWS Boise ID

2 weeks 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 quarter mile in dense fog. * WHERE...Portions of southwest Idaho and southeast Oregon. This includes Interstate 84 from Boise to Ontario and Highway 95 from Weiser to Council. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until 11 AM MST this morning. * 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 3:14AM MST until December 9 at 11:00AM MST by NWS Boise ID

2 weeks 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 quarter mile in dense fog. * WHERE...Portions of southwest Idaho and southeast Oregon. This includes Interstate 84 from Boise to Ontario and Highway 95 from Weiser to Council. * WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday. For the Dense Fog Advisory, until 11 AM MST this morning. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.
NWS