* WHAT...Poor air quality is possible due to an inversion and
stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...All southern Oregon valleys, including Roseburg, Elkton,
Canyonville, Coquille, Klamath Falls, Crescent, Chemult, Bly,
Lakeview, Adel, Silver Lake, and Christmas Valley.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous. Icy roads will require slower speeds and additional
stopping distance. Sidewalks may become icy and slippery.
* 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...Very cold wind chills of 15 to 20 degrees expected.
* WHERE...Western Whatcom County.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure and will impact vulnerable populations such as
the homeless, pets, and those without adequate access to heating.
* WHAT...For the Air Stagnation Advisory, poor air quality is
possible due to an inversion and stagnant air conditions near the
surface that will continue to trap pollutants. For the Freezing
Fog Advisory, visibility one quarter mile or less in freezing fog.
* WHERE...The valleys of Josephine and Jackson counties, including
Medford, Ashland, Shady Cove, Provolt, Cave Junction, Grants Pass,
and Agness.
* WHEN...For the Air Stagnation Advisory, until 10 AM PST Tuesday.
For the Freezing Fog Advisory, until noon PST today.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous. Icy roads will require slower speeds and additional
stopping distance. Sidewalks may become icy and slippery.
* WHAT...Poor air quality is possible due to an inversion and
stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...All southern Oregon valleys, including Roseburg, Elkton,
Canyonville, Coquille, Klamath Falls, Crescent, Chemult, Bly,
Lakeview, Adel, Silver Lake, and Christmas Valley.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Air Stagnation Advisory, poor air quality is
possible due to an inversion and stagnant air conditions near the
surface that will continue to trap pollutants. For the Freezing
Fog Advisory, visibility one quarter mile or less in freezing fog.
* WHERE...The valleys of Josephine and Jackson counties, including
Medford, Ashland, Shady Cove, Provolt, Cave Junction, Grants Pass,
and Agness.
* WHEN...For the Air Stagnation Advisory, until 10 AM PST Tuesday.
For the Freezing Fog Advisory, until noon PST today.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous. Icy roads will require slower speeds and additional
stopping distance. Sidewalks may become icy and slippery.
* WHAT...Visibility one quarter mile or less in freezing fog.
* WHERE...Eastern Curry County and Josephine County and Jackson
County.
* WHEN...From 1 AM to noon PST Saturday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Icy roads will require slower speeds and additional stopping
distance. Sidewalks may become icy and slippery.
* WHAT...Very cold wind chills of 15 to 20 degrees expected.
* WHERE...Western Whatcom County.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures will
impact vulnerable populations such as the homeless, pets, and
those without adequate access to heating.
* WHAT...Very cold wind chills of 15 to 20 degrees expected.
* WHERE...Western Whatcom County.
* WHEN...From 9 PM this evening to 10 AM PST Saturday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures will
impact vulnerable populations such as the homeless, pets, and
those without adequate access to heating.
* 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...Visibility one quarter mile or less in dense fog.
* WHERE...Central Willamette Valley, Benton County Lowlands, and
Linn County Lowlands.
* 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...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.