* WHAT...Cold temperatures between 20 to 25 degrees.
* WHERE...Greater Portland/Vancouver Metro, Central and Southern
Willamette Valley, Northern and Central Coast Range Valleys and
Mountains of Oregon, Foothills of the Northern and Central Oregon
Cascades, Lower Columbia River and Cowlitz River Valleys, Willapa
Hills, and South Washington Cascade Foothills.
* WHEN...From 10 PM this evening to 10 AM PST Thursday.
* IMPACTS...Hypothermia will occur if unprotected skin is exposed to
these temperatures.
* ADDITIONAL DETAILS...Easterly winds through the Columbia River
Gorge could gust as high as 25 to 35 mph in the eastern
Portland/Vancouver Metro Area, leading to wind chills near 25
degrees.
* 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...Lake County and eastern Klamath County, Central Douglas
County, Eastern Curry County and Josephine County, Eastern Douglas
County Foothills, Jackson County, and Klamath Basin.
* WHEN...Until noon PST Friday.
* IMPACTS...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...For the air stagnation advisory this includes the Coquille
Valley.
* WHEN...Until noon PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Very cold temperatures as low as 20 degrees F.
* WHERE...Central and Southern Willamette Valley, Northern and
Central Coast Range Valleys and Mountains of Oregon, Foothills of
the Northern and Central Oregon Cascades, Willapa Hills and
Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower
Columbia River and Cowlitz River Valleys, Outer Southeast Portland
Metro, North Clark County Lowlands, and South Washington Cascade
Foothills.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Wind chill values can lead to hypothermia with prolonged
exposure.
* ADDITIONAL DETAILS...Reduced wind speeds have kept temperatures
slightly warmer than previous evenings. Areas experiencing the
coldest temperatures are around the mouth of the Columbia River
Gorge and more rural areas. Locations with higher wind speeds are
experiencing apparent ("feels-like") temperatures near 30 degrees
F.
* 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...The valleys of Eastern Curry, Josephine, Jackson, Douglas,
Klamath and Lake counties. This includes the cities of Medford,
Ashland, Shady Cove, Provolt, Cave Junction, Grants Pass, Agness,
Roseburg, Canyonville, Klamath Falls, Crescent, Lakeview, Silver
Lake and surrounding areas.
* WHEN...Until noon PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...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. For the
Freeze Warning, sub-freezing temperatures as low as 28 expected
along the coast with colder temperatures inland.
* WHERE...For the air stagnation advisory this includes the Coquille
Valley. For the freeze warning, this includes the South Central
Oregon Coast.
* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
the Freeze Warning, from 2 AM to 8 AM PST Wednesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* WHAT...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. For the
Freeze Warning, sub-freezing temperatures as low as 28 expected
along the coast with colder temperatures inland.
* WHERE...For the air stagnation advisory this includes the Coquille
Valley. For the freeze warning, this includes the South Central
Oregon Coast.
* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
the Freeze Warning, from 2 AM to 8 AM PST Wednesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* 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...The valleys of Eastern Curry, Josephine, Jackson, Douglas,
Klamath and Lake counties. This includes the cities of Medford,
Ashland, Shady Cove, Provolt, Cave Junction, Grants Pass, Agness,
Roseburg, Canyonville, Klamath Falls, Crescent, Lakeview, Silver
Lake and surrounding areas.
* WHEN...Until noon PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...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. For the
Freeze Warning, sub-freezing temperatures as low as 28 expected
along the coast with colder temperatures inland.
* WHERE...For the air stagnation advisory this includes the Coquille
Valley. For the freeze warning, this includes the South Central
Oregon Coast.
* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
the Freeze Warning, from 2 AM to 8 AM PST Wednesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Frost and freeze conditions could kill
crops, other sensitive vegetation and possibly damage unprotected
outdoor plumbing.
* WHAT...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. For the
Freeze Warning, sub-freezing temperatures as low as 28 expected
along the coast with colder temperatures inland.
* WHERE...For the air stagnation advisory this includes the Coquille
Valley. For the freeze warning, this includes the South Central
Oregon Coast.
* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
the Freeze Warning, from 2 AM to 8 AM PST Wednesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Frost and freeze conditions could kill
crops, other sensitive vegetation and possibly damage unprotected
outdoor plumbing.
* WHAT...Very cold temperatures of 20 to 25 degrees expected.
* WHERE...Central and Southern Willamette Valley, Northern and
Central Coast Range Valleys and Mountains of Oregon, Foothills of
the Northern and Central Oregon Cascades, Willapa Hills and
Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower
Columbia River and Cowlitz River Valleys, Outer Southeast Portland
Metro, North Clark County Lowlands, and South Washington Cascade
Foothills.
* WHEN...From 10 PM this evening to 10 AM PST Wednesday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure.
* WHAT...A strong inversion and stagnant air conditions near the
surface will continue to trap pollutants.
* WHERE...The valleys of Josephine, Jackson, Douglas, Klamath, Lake,
and eastern Coos and Curry counties. This includes the cities of
Medford,
Ashland, Shady Cove, Provolt, Cave Junction, Grants Pass, Agness,
Coquille, Elkton, Roseburg, Canyonville, Klamath Falls, Crescent,
Lakeview, Silver Lake, and surrounding areas.
* WHEN...Until noon PST Friday.
* IMPACTS...Stagnate air conditions may lead to worsening air
quality, which in turn may cause issues for people with
respiratory problems.
* WHAT...A strong inversion and stagnant air conditions near the
surface will continue to trap pollutants.
* WHERE...All the valleys of southern eastern and south central
Oregon.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Air quality may become worse under this inversion.
* 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...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 will
continue. This is due to an inversion and stagnant air conditions
near the surface that will continue to trap pollutants. For the
freezing fog advisory, The fog thickness had decreased over the
last hour or two.
* WHERE...Eastern Curry County, Josephine County and Jackson County.
* WHEN...Until 10 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Very cold apparent (feels-like) temperatures west of the
Cascades. Interior lowlands 20 to 25 degrees F, and 10 to 20
degrees F through the Columbia River Gorge, and Upper Hood River
Valley.
* WHERE...The Lower Elevations of Northwest Oregon, and The Lower
Elevations of Southwest Washington.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures. Very cold temperatures can lead
to hypothermia with prolonged exposure.
* ADDITIONAL DETAILS...Easterly winds through the Columbia River
Gorge will lead to hazardous wind chill temperatures within the
Gorge and Portland/Vancouver Metro Area. East winds will gusts as
high as 40 mph within the Gorge, and 30 mph in the far eastern
Portland/Vancouver Metro.
* WHAT...A moderate risk of sneaker waves.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risk will be to west-facing beaches.
* WHEN...Through this 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...A high risk of sneaker waves is expected today with a
moderate risk tonight into Monday afternoon.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...Through Monday 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...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. For the
Freeze Warning, sub-freezing temperatures as low as 30 expected
along the coast with colder temperatures inland.
* WHERE...For the air stagnation advisory this includes the Coquille
Valley. For the freeze warning, this includes the South Central
Oregon Coast.
* WHEN...For the Air Stagnation Advisory, until 10 AM PST Tuesday.
For the Freeze Warning, from 1 AM to 8 AM PST Monday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* WHAT...For the Freezing Fog Advisory, visibility one quarter mile
or less 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...For the freezing fog advisory, the valleys of Josephine
and Jackson counties, including Medford, Ashland, Shady Cove,
Provolt, Cave Junction, Grants Pass, and Agness. For the air
stagnation advisory, all inland valleys in eastern Curry,
Josephine and Jackson counties.
* WHEN...For the Freezing Fog Advisory, until 9 AM PST Monday. For
the Air Stagnation Advisory, 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.
