* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions. This scenario could result in the
build up of air pollutants over time.
* WHERE...Eastern Portland/Vancouver Metro, Portland West Hills and
Chehalem Mountain, Inner Portland Metro, and Inner Vancouver Metro.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.
* WHAT...Visibility less than one quarter mile in freezing fog.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...Until 2 PM PST this afternoon.
* IMPACTS...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...Klamath Basin. This includes Klamath Falls, Sprague River,
Merrill, Keno, Chiloquin and surrounding areas.
* WHEN...For the Freezing Fog Advisory, until noon PST today. For
the Air Stagnation Advisory, until 4 PM PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Watch for icy spots on roads. 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
Dense Fog Advisory, visibility one quarter mile or less in dense
fog.
* WHERE...The Rogue, Applegate and Sams valleys in Jackson County,
including Medford, Talent, Phoenix, Eagle Point, Central Point,
Jacksonville, Applegate and Shady Cove.
* WHEN...For the Air Stagnation Advisory, until 4 PM PST Wednesday.
For the Dense Fog Advisory, until 11 AM PST this morning.
* 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...Valleys in Lake County, eastern Klamath County, Central
Douglas County, Eastern Curry County and Josephine County. West
of the Cascades, this includes the Umpqua, Illinois, Applegate,
and Rogue valleys, including Grants Pass, Sunny Valley, Galice,
Murphy, Selma, Cave Junction and O'Brien. East of the Cascades,
this includes Chemult, Silver Lake, Paisley, Valley Falls and
surrounding areas.
* WHEN...Until 4 PM PST Wednesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* 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...Klamath Basin. This includes Klamath Falls, Sprague River,
Merrill, Keno, Chiloquin and surrounding areas.
* WHEN...For the Freezing Fog Advisory, until noon PST today. For
the Air Stagnation Advisory, until 4 PM PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Watch for icy spots on roads. 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
Dense Fog Advisory, visibility one quarter mile or less in dense
fog.
* WHERE...The Rogue, Applegate and Sams valleys in Jackson County,
including Medford, Talent, Phoenix, Eagle Point, Central Point,
Jacksonville, Applegate and Shady Cove.
* WHEN...For the Air Stagnation Advisory, until 4 PM PST Wednesday.
For the Dense Fog Advisory, until 11 AM PST this morning.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* WHAT...A high risk of sneaker waves is expected.
* WHERE...All beaches and shorelines of Douglas, Coos, and Curry
counties.
* WHEN...From this evening 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...Visibility of one-quarter mile or less in freezing fog.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...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...Valleys in Lake County, eastern Klamath County, Central
Douglas County, Eastern Curry County and Josephine County. West
of the Cascades, this includes the Umpqua, Illinois, Applegate,
and Rogue valleys, including Grants Pass, Sunny Valley, Galice,
Murphy, Selma, Cave Junction and O'Brien. East of the Cascades,
this includes Chemult, Silver Lake, Paisley, Valley Falls and
surrounding areas.
* WHEN...Until 4 PM PST Wednesday.
* 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
Dense Fog Advisory, visibility one quarter mile or less in dense
fog.
* WHERE...The Rogue, Applegate and Sams valleys in Jackson County,
including Medford, Talent, Phoenix, Eagle Point, Central Point,
Jacksonville, Applegate and Shady Cove.
* WHEN...For the Air Stagnation Advisory, until 4 PM PST Wednesday.
For the Dense Fog Advisory, until 11 AM PST this morning.
* 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...Klamath Basin. This includes Klamath Falls, Sprague River,
Merrill, Keno, Chiloquin and surrounding areas.
* WHEN...For the Freezing Fog Advisory, until 9 AM PST this morning.
For the Air Stagnation Advisory, until 4 PM PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
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
Dense Fog Advisory, visibility one quarter mile or less in dense
fog.
* WHERE...The Rogue, Applegate and Sams valleys in Jackson County,
including Medford, Talent, Phoenix, Eagle Point, Central Point,
Jacksonville, Applegate and Shady Cove.
* WHEN...For the Air Stagnation Advisory, until 4 PM PST Wednesday.
For the Dense Fog Advisory, until 11 AM PST this morning.
* 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...Klamath Basin. This includes Klamath Falls, Sprague River,
Merrill, Keno, Chiloquin and surrounding areas.
* WHEN...For the Freezing Fog Advisory, until 9 AM PST this morning.
For the Air Stagnation Advisory, until 4 PM PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Poor air quality may cause issues for people with respiratory
problems.
* WHAT...For the Frost Advisory, temperatures as low as 33 will
result in frost formation. For the Freeze Warning, sub-freezing
temperatures as low as 30.
* WHERE...The Freeze Warning includes areas from Bandon north along
the Coos and Douglas coasts and inland into the Coquille Valley,
including the communities of Reedsport, Coos Bay, Lakeside,
Charleston, Bandon, Coquille and Myrtle Point. The frost advisory
includes areas south of Bandon including Denmark, Sixes and Port
Orford.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...For the Frost Advisory, temperatures as low as 33 will
result in frost formation. For the Freeze Warning, sub-freezing
temperatures as low as 30.
* WHERE...Curry County Coast, including Ophir, Nesika Beach, Gold
Beach and Brookings.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...For the Frost Advisory, temperatures as low as 33 will
result in frost formation. For the Freeze Warning, sub-freezing
temperatures as low as 30.
* WHERE...The Freeze Warning includes areas from Bandon north along
the Coos and Douglas coasts and inland into the Coquille Valley,
including the communities of Reedsport, Coos Bay, Lakeside,
Charleston, Bandon, Coquille and Myrtle Point. The frost advisory
includes areas south of Bandon including Denmark, Sixes and Port
Orford.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions. This scenario could result in the
build up of air pollutants over time.
* WHERE...Central and Southern Willamette Valley, Foothills of the
Northern and Central Oregon Cascades, North and Central Coast
Range Valleys of Oregon, Lower Columbia River and Cowlitz River
Valleys, Tualatin Valley, Willapa and Wahkiakum Lowlands, North
Clark County Lowlands, and South Washington Cascade Foothills.
* WHEN...Until 4 AM PST Thursday.
* IMPACTS...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. This scenario could result in the
build up of air pollutants over time.
* WHERE...Eastern Portland/Vancouver Metro, Portland West Hills and
Chehalem Mountain, Inner Portland Metro, and Inner Vancouver Metro.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.
* WHAT...Visibility of one-quarter mile or less in freezing fog.
* WHERE...North Central Oregon.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Low visibility could make driving conditions hazardous.
