Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations up to two inches.
* WHERE...Harrington and Ritzville.
* WHEN...Until 10 AM PST Wednesday.
* IMPACTS...Plan for winter travel conditions during the Wednesday
morning commute.
* ADDITIONAL DETAILS...Small scale bands of moderate to heavy snow
will lead to large variability in snow amounts over short
distances.
From: Feb 18, 2026 07:17
Until: Feb 18, 2026 18:00
Dense Fog Advisory
* WHAT...Visibility one-quarter mile or less in areas of dense fog.
* WHERE...Kittitas Valley, Yakima Valley, and Lower Columbia Basin
of Washington.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 31, 2026 08:14
Until: Jan 31, 2026 18:00
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Ephrata, Quincy, Moses Lake.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 31, 2026 05:14
Until: Jan 31, 2026 18:00
Special Weather Statement
Patchy dense fog will impact travel around Moses Lake along
Interstate 90 and surrounding locations. Motorists should be
prepared for rapidly changing conditions where visibility may
suddenly drop to a quarter mile or less.
Please slow down, use your low-beam headlights, and leave extra
distance between vehicles to ensure a safe commute.
From: Jan 30, 2026 22:41
Until: Jan 31, 2026 01:00
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Kittitas Valley and Yakima Valley.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 30, 2026 11:40
Until: Jan 30, 2026 20:00
Dense Fog Advisory
* WHAT...Visibility one quarter to one half mile in dense fog.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon and Lower Columbia Basin of Oregon. In Washington, Kittitas
Valley and Yakima Valley.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 30, 2026 17:54
Until: Jan 30, 2026 20:00
Air Stagnation Advisory
* 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...Eastern Columbia River Gorge of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, Foothills of the
Northern Blue Mountains of Oregon, Central Oregon, Kittitas
Valley, Yakima Valley, Foothills of the Blue Mountains of
Washington, and Simcoe Highlands.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
From: Jan 19, 2026 21:32
Until: Jan 21, 2026 00:00
Air Stagnation Advisory
* WHAT...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Number 1 Canyon, Colville, Ione, Pangborn Airport,
Springdale-Hunters Road, Cashmere, Disautel Pass, Highway 20
Wauconda Summit, Conconully, Twisp, Entiat, Okanogan, Boulder
Creek Road, Number 2 Canyon, Leavenworth, Chelan, Deer Park,
Metaline, Wenatchee, Brewster, Chewelah, Omak, Oroville, Methow,
Winthrop, Wauconda, Newport, Kettle Falls, Loup Loup Pass, Plain,
Stehekin, Northport, Stevens Pass, Nespelem, Holden Village,
Fruitland, Mazama, Sherman Pass, Metaline Falls, Bridgeport,
Flowery Trail Road, Tiger, Republic, Chesaw Road, Orin-Rice Road,
Inchelium, and Tonasket.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 18, 2026 18:48
Until: Jan 21, 2026 00:00
Air Stagnation Advisory
* WHAT...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Coeur d'Alene, Wilbur, Coulee City, Davenport, Odessa,
Spokane Valley, Post Falls, Worley, Othello, Ritzville, Mansfield,
Rockford, Hayden, Harrington, Grand Coulee, Downtown Spokane,
Fairfield, Ephrata, Quincy, Cheney, Badger Mountain Road, Creston,
Waterville, Airway Heights, and Moses Lake.
* WHEN...Until 4 PM PST Tuesday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Jan 18, 2026 18:48
Until: Jan 20, 2026 20:00
Air Stagnation Advisory
* 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...From 7 AM Tuesday to 7 AM PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
From: Jan 12, 2026 19:51
Until: Jan 13, 2026 22:00
Dense Fog Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense 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...Kittitas Valley.
* WHEN...For the Dense Fog Advisory, until noon PST today. For the
Air Stagnation Advisory, from 7 AM this morning to 7 AM PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
From: Jan 13, 2026 11:36
Until: Jan 13, 2026 20:00
Air Stagnation Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense 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...Kittitas Valley.
* WHEN...For the Dense Fog Advisory, until noon PST today. For the
Air Stagnation Advisory, from 7 AM this morning to 7 AM PST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
From: Jan 13, 2026 11:36
Until: Jan 13, 2026 20:00
Freezing Fog Advisory
* WHAT...Visibility of a quarter mile or less in freezing fog.
* WHERE...Kittitas Valley.
* WHEN...Until 1 AM PST Sunday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Parts of I-82 and I-90 nears Ellensburg are
recording less than or equal to a quarter mile of visibility.
Temperatures across the area are in the high 20s to low 30s,
bringing possible slick conditions across pavements (including
sidewalks and roads).
From: Jan 11, 2026 04:01
Until: Jan 11, 2026 09:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations 1 to 3 inches.
Winds gusting as high as 40 mph.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Plan on slippery road conditions.
From: Jan 08, 2026 15:29
Until: Jan 09, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 5 to 8
inches. Winds gusting as high as 40 mph.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Periods of moderate to heavy snow will combine with low
visibilities to create difficult driving conditions, especially on
portions of I-90 and US-20.
From: Jan 08, 2026 15:29
Until: Jan 09, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 1 and 7
inches. Winds gusting as high as 45 mph.
* WHERE...Holden Village, Stehekin, and Stevens Pass.
* WHEN...Until 4 PM PST this afternoon.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Thursday morning commute. Gusty winds could bring
down tree branches.
From: Jan 08, 2026 11:51
Until: Jan 09, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 9 inches.
Winds gusting as high as 40 mph.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
From: Jan 08, 2026 06:43
Until: Jan 08, 2026 20:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 3 inches.
Winds gusting as high as 40 mph.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Plan on slippery road conditions.
From: Jan 08, 2026 06:43
Until: Jan 08, 2026 20:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 20 inches.
Winds gusting as high as 40 mph.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions.
From: Jan 07, 2026 23:02
Until: Jan 08, 2026 07:15
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 5 inches.
Winds gusting as high as 40 mph.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
From: Jan 07, 2026 23:02
Until: Jan 08, 2026 07:15
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 5 and 10
inches, locally near 1 foot in the higher mountains. Winds gusting
as high as 30 mph.
* WHERE...Stevens Pass, Stehekin, and Holden Village.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick. Travel could be very difficult. Winter
driving conditions could impact the Wednesday evening and Thursday
morning commutes.
* ADDITIONAL DETAILS...Additional snowfall at Stehekin between 1 and
3 inches through Thursday afternoon.
From: Jan 07, 2026 21:52
Until: Jan 08, 2026 06:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 5 and 10
inches, locally near 1 foot in the higher mountains. Winds gusting
as high as 30 mph.
* WHERE...Stevens Pass, Stehekin, and Holden Village.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Travel will be very difficult. Winter driving conditions
will impact the Wednesday evening and Thursday morning commutes.
* ADDITIONAL DETAILS...Additional snowfall at Stehekin between 1 and
3 inches through Thursday afternoon.
From: Jan 07, 2026 17:47
Until: Jan 08, 2026 05:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 10 inches.
Winds gusting as high as 45 mph.
* WHERE...Lower Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
From: Jan 07, 2026 13:43
Until: Jan 08, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to 20 inches.
Winds gusting as high as 50 mph.
* WHERE...In Oregon, East Slopes of the Oregon Cascades. In
Washington, Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Until 4 PM PST Thursday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions.
From: Jan 07, 2026 13:43
Until: Jan 08, 2026 00:00
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations up to one
tenth of an inch.
* WHERE...Waterville, Mansfield, and Badger Mountain Road.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Expect slick conditions on untreated roads and surfaces.
From: Jan 03, 2026 06:00
Until: Jan 03, 2026 18:00
Winter Weather Advisory
* WHAT...Mixed precipitation. Additional snow accumulations up to 2
inches and ice accumulations around a light glaze.
* WHERE...Leavenworth, Stehekin, Plain, Holden Village, and Stevens
Pass.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
From: Jan 03, 2026 06:00
Until: Jan 03, 2026 18:00
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations up to one
tenth of an inch.
* WHERE...Mansfield, Waterville, and Badger Mountain Road.
* WHEN...From 7 PM this evening to 10 AM PST Saturday.
* IMPACTS...Expect slick conditions on untreated roads and surfaces.
From: Jan 02, 2026 20:07
Until: Jan 03, 2026 15:15
Winter Weather Advisory
* WHAT...Mixed precipitation. Additional snow accumulations up to 2
inches and ice accumulations around a light glaze.
* WHERE...Stehekin, Holden Village, Plain, Stevens Pass, and
Leavenworth.
* WHEN...Until 10 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
From: Jan 02, 2026 20:07
Until: Jan 03, 2026 15:15
Special Weather Statement
Light freezing rain is expected to taper off by 10-11 PM PST this
evening. While temperatures are hovering near freezing and not
favorable for significant ice accretion, some surfaces may become
slick.
Patchy dense fog is producing localized visibilities of one-
quarter mile or less along I-90 and US 12. Fog is expected to
continue this evening and tonight. If driving, slow down, use your
headlights, and leave plenty of distance ahead of you.
From: Jan 03, 2026 05:00
Until: Jan 03, 2026 08:00
Special Weather Statement
Light freezing rain in the Kittitas Valley is expected to taper
off by 10-11 PM PST this evening. While temperatures are hovering
near freezing and not favorable for significant ice accretion,
some surfaces may become slick.
Patchy dense fog is producing localized visibilities of one-
quarter mile or less along I-90, I-82, US 97, and SR 24. Fog is
expected to continue this evening and tonight. If driving, slow
down, use your headlights, and leave plenty of distance ahead of
you.
From: Jan 03, 2026 05:00
Until: Jan 03, 2026 08:00
Winter Weather Advisory
* WHAT...Mixed precipitation. Additional ice accumulations of a
light glaze.
* WHERE...Stehekin, Holden Village, Plain, Stevens Pass, and
Leavenworth.
* WHEN...Until 1 PM PST this afternoon.
* IMPACTS...Plan on slippery road conditions.
From: Jan 02, 2026 17:48
Until: Jan 02, 2026 21:00
Winter Weather Advisory
* WHAT...Mixed precipitation of freezing rain, rain, and snow
expected. Total snow accumulations up to one half inch and ice
accumulations around one tenth of an inch.
* WHERE...Wilbur, Ephrata, Coulee City, Odessa, Harrington, Grand
Coulee, Othello, Quincy, Creston, Moses Lake, and Ritzville.
* WHEN...From 2 PM this afternoon to 4 AM PST Friday.
* IMPACTS...Plan on slippery road conditions. Freezing rain may lead
to very slick conditions on untreated roads and surfaces.
From: Jan 01, 2026 15:24
Until: Jan 02, 2026 12:00
Winter Weather Advisory
* WHAT...Mixed precipitation expected. Total snow accumulations up
to 2 inches and ice accumulations between a light glaze and one
tenth of an inch.
* WHERE...Stevens Pass, Leavenworth, Holden Village, Plain, and
Stehekin.
* WHEN...From 4 PM this afternoon to 1 PM PST Friday.
* IMPACTS...Slow down and use caution while traveling. For the
latest travel information in Washington, go to https://wsdot.wa.
gov/travel
From: Jan 01, 2026 15:24
Until: Jan 02, 2026 12:00
Winter Weather Advisory
* WHAT...Mixed precipitation expected. Total ice accumulations of a
light glaze to one-tenth of an inch.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Plan on slippery road conditions.
From: Jan 01, 2026 15:17
Until: Jan 01, 2026 23:30
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations around a
light glaze.
* WHERE...Kittitas Valley, Yakima Valley, Lower Columbia Basin of
Washington, and Foothills of the Blue Mountains of Washington.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Very slippery sidewalks, roads and bridges are possible.
The hazardous conditions could impact the Thursday evening commute.
From: Jan 01, 2026 15:17
Until: Jan 01, 2026 23:30
Air Stagnation Advisory
* 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...Foothills of the Blue Mountains of Oregon and Washington,
Lower Columbia Basin of Oregon, North Central Oregon, Central
Oregon, Kittitas Valley, and Yakima Valley.
* WHEN...Until noon PST today.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
From: Jan 01, 2026 08:41
Until: Jan 01, 2026 20:00
Air Stagnation Advisory
* WHAT...Stagnant conditions will have the potential to trap
pollutants near the ground and deteriorate air quality.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Lower Columbia Basin of Oregon and Washington, North Central
Oregon, Central Oregon, Kittitas Valley, and Yakima Valley.
* WHEN...Until noon PST Thursday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface, potentially leading to poor air
quality.
From: Dec 29, 2025 20:03
Until: Jan 01, 2026 20:00
Air Stagnation Advisory
* WHAT...Stagnant conditions will have potential to trap pollutants
near the ground with deteriorated air quality.
* WHERE...Portions of North and North Central Idaho and North
Central, Northeast, and Southeast Washington.
* WHEN...Until noon PST Thursday.
* IMPACTS...Periods of air stagnation can lead to the buildup of
pollutants near the surface.
From: Dec 29, 2025 19:45
Until: Jan 01, 2026 20:00
Winter Weather Advisory
* WHAT...Mixed precipitation of freezing rain, rain, and snow
expected. Total snow accumulations up to one half inch and ice
accumulations around one tenth of an inch.
* WHERE...Quincy, Grand Coulee, Coulee City, Harrington, Ephrata,
Moses Lake, Wilbur, Creston, Ritzville, Odessa, and Othello.
* WHEN...From 2 PM Thursday to 4 AM PST Friday.
* IMPACTS...Plan on slippery road conditions. Freezing rain may lead
to very slick conditions on untreated roads and surfaces.
From: Jan 01, 2026 02:19
Until: Jan 01, 2026 15:30
Winter Weather Advisory
* WHAT...Mixed precipitation expected. Total snow accumulations up
to 2 inches and ice accumulations between a light glaze and one
tenth of an inch.
* WHERE...Stevens Pass, Plain, Holden Village, Leavenworth, and
Stehekin.
* WHEN...From 4 PM Thursday to 1 PM PST Friday.
* IMPACTS...Plan on slippery road conditions. Freezing rain may lead
to very slick conditions on untreated roads and surfaces.
From: Jan 01, 2026 02:19
Until: Jan 01, 2026 15:30
Winter Weather Advisory
* WHAT...Mixed precipitation expected. Total ice accumulations of a
light glaze to one-tenth of an inch.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest.
* WHEN...From 4 AM Thursday to 4 AM PST Friday.
* IMPACTS...Plan on slippery road conditions.
From: Jan 01, 2026 06:49
Until: Jan 01, 2026 15:15
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations of a light
glaze to one-tenth of an inch.
* WHERE...Kittitas Valley, Yakima Valley, Lower Columbia Basin of
Washington, and Foothills of the Blue Mountains of Washington.
* WHEN...From 10 AM Thursday to 4 AM PST Friday.
* IMPACTS...Difficult travel conditions are possible. The hazardous
conditions could impact the Thursday evening commute.
From: Jan 01, 2026 06:49
Until: Jan 01, 2026 15:15
