* WHAT...For the Freeze Warnings, sub-freezing temperatures as low
as 30. For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the beaches
from Port Orford to Reedsport, including North Bend and Coos Bay.
* WHEN...For the first Freeze Warning, until 9 AM PST this morning.
For the Air Stagnation Advisory, until noon PST Thursday. For the
second Freeze Warning, from 2 AM to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Poor air quality may cause issues for people with
respiratory problems.
* WHAT...A strong inversion and stagnant air conditions near the
surface will trap pollutants possibly leading to poor air quality.
* WHERE...Valleys of Lake County and eastern Klamath County, Curry
County Coast, Central Douglas County, and Klamath Basin.
* WHEN...Until noon PST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Freeze Warnings, sub-freezing temperatures as low
as 30. For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the beaches
from Port Orford to Reedsport, including North Bend and Coos Bay.
* WHEN...For the first Freeze Warning, until 9 AM PST this morning.
For the Air Stagnation Advisory, until noon PST Thursday. For the
second Freeze Warning, from 2 AM to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Cold Weather Advisory, very cold temperatures as
low as 15. For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...Valleys of Eastern Curry County, Josephine County, and
Jackson County, including Medford, Ashland, Grants Pass, Roseburg,
Cave Junction, and all surrounding areas.
* WHEN...For the Cold Weather Advisory, until 9 AM PST this morning.
For the Air Stagnation Advisory, until noon PST Thursday.
* IMPACTS...Very cold temperatures can lead to hypothermia with
prolonged exposure. Poor air quality may cause issues for people
with respiratory problems. Frostbite and hypothermia will occur if
unprotected skin is exposed to these temperatures.
* WHAT...For the Freeze Warnings, sub-freezing temperatures as low
as 30. For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the beaches
from Port Orford to Reedsport, including North Bend and Coos Bay.
* WHEN...For the first Freeze Warning, until 9 AM PST this morning.
For the Air Stagnation Advisory, until noon PST Thursday. For the
second Freeze Warning, from 2 AM to 9 AM PST Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. 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 of Lake County and eastern Klamath County, Curry
County Coast, Central Douglas County, and Klamath Basin.
* WHEN...Until noon PST Thursday.
* 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
Cold Weather Advisory, very cold temperatures as low as 19
expected.
* WHERE...Valleys of Eastern Curry County, Josephine County, and
Jackson County, including Medford, Ashland, Grants Pass, Roseburg,
Cave Junction, and all surrounding areas.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Cold Weather Advisory, from 2 AM to 9 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Frostbite and hypothermia will occur if
unprotected skin is exposed to these temperatures. Very cold
temperatures can lead to hypothermia with prolonged exposure.
* WHAT...For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the immediate
coast from Port Orford to Reedsport, including North Bend and Coos
Bay.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Freeze Warning, from 2 AM to 9 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the immediate
coast from Port Orford to Reedsport, including North Bend and Coos
Bay.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Freeze Warning, from 2 AM to 9 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. 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
Cold Weather Advisory, very cold temperatures as low as 19
expected.
* WHERE...Valleys of Eastern Curry County, Josephine County, and
Jackson County, including Medford, Ashland, Grants Pass, Roseburg,
Cave Junction, and all surrounding areas.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Cold Weather Advisory, from 2 AM to 9 AM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Frostbite and hypothermia will occur if
unprotected skin is exposed to these temperatures. Very cold
temperatures can lead to hypothermia with prolonged exposure.
* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that can trap pollutants.
* WHERE...Portions of south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...Until 9 AM MST /8 AM PST/ Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Apparent (feels-like) temperatures as low as 25 expected.
* WHERE...Greater Portland/Vancouver Metro, Central and Southern
Willamette Valley, Lower Columbia River and Cowlitz River Valleys,
and South Washington Cascade Foothills.
* WHEN...From 10 PM this evening to 10 AM PST Tuesday.
* IMPACTS...Hypothermia can occur with prolonged exposure to these
temperatures.
* ADDITIONAL DETAILS...Easterly winds through the Columbia River
Gorge with gusts to 25-30 mph in the far eastern
Portland/Vancouver Metro area will lead to warmer temperatures,
but the wind chill will be close to 25 degrees.
* WHAT...Apparent (feels-like) temperatures as low as 25 expected.
* WHERE...Greater Portland/Vancouver Metro, Central and Southern
Willamette Valley, Lower Columbia River and Cowlitz River Valleys,
and South Washington Cascade Foothills.
* WHEN...From 10 PM this evening to 10 AM PST Tuesday.
* IMPACTS...Hypothermia can occur with prolonged exposure to these
temperatures.
* ADDITIONAL DETAILS...Easterly winds through the Columbia River
Gorge with gusts to 25-30 mph in the far eastern
Portland/Vancouver Metro area will lead to warmer temperatures,
but the wind chill will be close to 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...Portions of central, north central, and northeast Oregon
and central, south central, and southeast Washington.
* WHEN...Until 4 AM 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...Portions of central, north central, and northeast Oregon
and central, south central, and southeast Washington.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Stagnant air conditions will have potential to trap
pollutants near the ground.
* WHERE...Portions of North Idaho and Central, North Central, and
Northeast Washington including Spokane, Coeur d'Alene, Kellogg,
Bonners Ferry, Sandpoint, Metaline, Deer Park, Colville, Republic,
Omak, Winchester, Lake Chelan, Wenatchee, Leavenworth, and
Waterville.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* WHAT...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Kamiah, Craigmont, Lapwai, Gifford, Culdesac, Peck,
Clarkston, Winchester, Nezperce, Pomeroy, and Lewiston.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* WHAT...For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the immediate
coast from Port Orford to Reedsport, including North Bend and Coos
Bay.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Freeze Warning, from 2 AM to 9 AM PST Tuesday.
* 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...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 the cities of
Medford, Ashland, Cave Junction, Grants Pass, Roseburg, Elkton,
Coquille, Klamath Falls, Chiloquin, Chemult, Crescent, Lakeview,
Silver Lake, and Christmas Valley.
* WHEN...Until noon PST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Air Stagnation Advisory, a strong inversion and
stagnant air conditions near the surface will trap pollutants
possibly leading to poor air quality.
* WHERE...For the Air Stagnation Advisory, mainly areas inland from
the immediate coast. For the Freeze Warnings, mainly the immediate
coast from Port Orford to Reedsport, including North Bend and Coos
Bay.
* WHEN...For the Air Stagnation Advisory, until noon PST Thursday.
For the Freeze Warning, from 2 AM to 9 AM PST Tuesday.
* 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.