* 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...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Winchester, Clarkston, Craigmont, Lewiston, Kamiah,
Soldiers Meadow Road, Lewiston Grade, Alpowa Summit, Peck, Lapwai,
Pomeroy, Culdesac, Gifford, and Nezperce.
* WHEN...Until 4 PM PST Monday.
* 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...Portions of North Idaho and Central, North Central, and
Northeast Washington.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* 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 PM PST Monday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Very cold apparent ("feels-like") temperatures as cold as
15-25 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, Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, South Washington Coast, and South Washington Cascade
Foothills.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
* ADDITIONAL DETAILS...Apparent ("feels like") temperatures as low
as 25 degrees in the Portland/Vancouver metro area and 15 degrees
elsewhere. Areas experiencing easterly winds near the Columbia
River Gorge will see warmer temperatures - some above freezing.
* WHAT...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Portions of North Idaho and Central, North Central, and
Northeast Washington.
* WHEN...Until 4 PM PST Monday.
* 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...Nezperce, Winchester, Pomeroy, Craigmont, Soldiers Meadow
Road, Culdesac, Kamiah, Clarkston, Alpowa Summit, Lewiston Grade,
Gifford, Peck, Lewiston, and Lapwai.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* WHAT...Very cold temperatures as low as 20 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, Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, South Washington Coast, and South Washington Cascade
Foothills.
* WHEN...From 10 PM this evening to 10 AM PST Sunday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
* ADDITIONAL DETAILS...Apparent ("feels like") temperatures as low
as 25 degrees in the Portland/Vancouver metro area and 15 degrees
elsewhere. Areas experiencing easterly winds near the Columbia
River Gorge will see warmer temperatures - some above freezing.
* 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 PM PST Monday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Very cold temperatures as low as 20 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, Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, South Washington Coast, and South Washington Cascade
Foothills.
* WHEN...For the first Cold Weather Advisory, until 10 AM PST this
morning. For the second Cold Weather Advisory, from 10 PM this
evening to 10 AM PST Sunday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
* ADDITIONAL DETAILS...Apparent ("feels like") temperatures as low
as 25 degrees in the Portland/Vancouver metro area and 15 degrees
elsewhere. Areas experiencing easterly winds near the Columbia
River Gorge will see warmer temperatures - some above freezing.
* WHAT...Very cold temperatures as low as 20 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, Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, South Washington Coast, and South Washington Cascade
Foothills.
* WHEN...For the first Cold Weather Advisory, until 10 AM PST this
morning. For the second Cold Weather Advisory, from 10 PM this
evening to 10 AM PST Sunday.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
* ADDITIONAL DETAILS...Apparent ("feels like") temperatures as low
as 25 degrees in the Portland/Vancouver metro area and 15 degrees
elsewhere. Areas experiencing easterly winds near the Columbia
River Gorge will see warmer temperatures - some above freezing.
* 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 PM PST Monday.
* 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.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* 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 PM PST Monday.
* 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.
* WHEN...Until 4 PM PST Monday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
* 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 PM PST Monday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Cold temperatures as low as 20.
* 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...Until 10 AM PST this morning.
* IMPACTS...Frostbite and hypothermia will occur if unprotected skin
is exposed to these temperatures.
* ADDITIONAL DETAILS...Apparent ("feels like") temperatures as low
as 15 degrees F in the rural portions of the central Willamette
Valley. Areas experiencing easterly winds within the Columbia
River Gorge will see warmer temperatures - some above freezing.
* 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.
