* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portland Metro Hills.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, light winds
and limited air movement will lead to a period of stagnant air
conditions.
* WHERE...Central Willamette Valley, Benton County Lowlands, and
Linn County Lowlands.
* WHEN...For the Dense Fog Advisory, until noon PST today. For the
Air Stagnation Advisory, until 10 AM PST this morning.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems. Low visibility could make driving
conditions hazardous.
* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions.
* WHERE...Lane County Lowlands.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...From Saturday afternoon through Sunday 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
* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions.
* WHERE...Central Willamette Valley, Benton County Lowlands, and
Linn County Lowlands.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...For the Air Stagnation Advisory, deteriorating air
quality may cause issues for people with respiratory problems.
* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions.
* WHERE...Lane County Lowlands.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...For the Air Stagnation Advisory, deteriorating air
quality may cause issues for people with respiratory problems.
* 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 south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...Until 11 AM MST /10 AM PST/ this morning.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Moderate to poor air quality will continue through the next
few days. This is due to an inversion and stagnant air conditions
near the surface that will continue to trap pollutants.
* WHERE...The valleys of Klamath, Lake, Jackson, Josephine and
Douglas Counties. This includes the Klamath Basin and the Rogue,
Illinois, Umpqua, Goose, Summer Lake and Applegate valleys.
* WHEN...Until noon PST Friday.
* IMPACTS...Poor and unhealthy air quality may cause issues for
people with respiratory problems.
* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions.
* WHERE...Central Willamette Valley, Benton County Lowlands, and
Linn County Lowlands.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...For the Air Stagnation Advisory, deteriorating air
quality may cause issues for people with respiratory problems.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, light winds
and limited air movement will lead to a period of stagnant air
conditions.
* WHERE...Lane County Lowlands.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...For the Dense Fog Advisory, low visibility could make
driving conditions hazardous. For the Air Stagnation Advisory,
deteriorating air quality may cause issues for people with
respiratory problems.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, light winds
and limited air movement will lead to a period of stagnant air
conditions.
* WHERE...Lane County Lowlands.
* WHEN...Until 10 AM PST Friday.
* IMPACTS...For the Dense Fog Advisory, low visibility could make
driving conditions hazardous. For the Air Stagnation Advisory,
deteriorating air quality may cause issues for people with
respiratory problems.
* WHAT...Moderate to poor air quality will continue. This is due to
an inversion and stagnant air conditions near the surface that
will continue to trap pollutants.
* WHERE...Valleys across Lake County and eastern Klamath County,
South Central Oregon Coast, Eastern Douglas County Foothills, and
Klamath Basin.
* WHEN...Until noon PST Friday.
* IMPACTS...Moderate to poor air quality may cause issues for people
with respiratory problems.
* WHAT...Moderate to poor air quality will continue. This is due to
an inversion and stagnant air conditions near the surface that
will continue to trap pollutants.
* WHERE...Valleys in eastern Curry County and Josephine County and
Jackson County. This includes, the Illinois, Rogue and Applegate
valleys, including Grants Pass, Selma, Cave Junction, Applegate,
Rogue River, Medford, Eagle Point, Jacksonville, Ashland and
surrounding areas.
* WHEN...Until noon PST Friday.
* IMPACTS...Moderate to poor air quality may cause issues for people
with respiratory problems.
* WHAT...Poor air quality will continue. This is due to an inversion
and stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...Valleys in central Douglas County. This includes Roseburg,
Sutherlin, Elkton, Camas Valley, Canyonville, Glendale and
surrounding areas.
* WHEN...Until noon PST Friday.
* IMPACTS...Moderate to poor air quality may cause issues for people
with respiratory problems.
Patches of dense fog and freezing fog will continue into the early
afternoon. Visibilities of less than 1/2 mile are possible in
spots, especially along Highway 11 near Athena, Interstate 84 near
Pendleton and in portions of Walla Walla. Drivers should expect
sudden reductions in visibility. Slow down and allow for extra
space between yourself and other vehicles if you encounter dense
fog.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...From Saturday afternoon through Sunday 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
* WHAT...Poor to moderate air quality will continue. This is due to
an inversion and stagnant air conditions near the surface that
will continue to trap pollutants.
* WHERE...Valleys across Lake County and eastern Klamath County,
South Central Oregon Coast, Eastern Douglas County Foothills, and
Klamath Basin.
* WHEN...Until noon PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Freezing Fog Advisory, visibility less than one
quarter mile in freezing fog. For the Air Stagnation Advisory,
poor air quality will continue. This is due to an inversion and
stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...Valleys in eastern Curry County and Josephine County and
Jackson County. This includes, the Illinois, Rogue and Applegate
valleys, including Grants Pass, Selma, Cave Junction, Applegate,
Rogue River, Medford, Eagle Point, Jacksonville, Ashland and
surrounding areas.
* WHEN...For the Freezing Fog Advisory, until noon PST today. For
the Air Stagnation Advisory, until noon PST Friday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Freezing fog may allow spots of ice to develop on roadways. Poor
air to moderate air quality may cause issues for people with
respiratory problems.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, poor air
quality will continue. This is due to an inversion and stagnant
air conditions near the surface that will continue to trap
pollutants.
* WHERE...Valleys in central Douglas County. This includes Roseburg,
Sutherlin, Elkton, Camas Valley, Canyonville, Glendale and
surrounding areas.
* WHEN...For the Dense Fog Advisory, until noon PST today. For the
Air Stagnation Advisory, until noon PST Friday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Poor air to moderate air quality may cause issues for people with
respiratory problems.
* WHAT...For the Freezing Fog Advisory, visibility less than one
quarter mile in freezing fog. For the Air Stagnation Advisory,
poor air quality will continue. This is due to an inversion and
stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...Valleys in eastern Curry County and Josephine County and
Jackson County. This includes, the Illinois, Rogue and Applegate
valleys, including Grants Pass, Selma, Cave Junction, Applegate,
Rogue River, Medford, Eagle Point, Jacksonville, Ashland and
surrounding areas.
* WHEN...For the Freezing Fog Advisory, until noon PST today. For
the Air Stagnation Advisory, until noon PST Friday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Freezing fog may allow spots of ice to develop on roadways. Poor
air to moderate air quality may cause issues for people with
respiratory problems.
