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
Winter Weather Advisory
* WHAT...Mixed precipitation with freezing rain. Additional snow
accumulations up to two inches and ice accumulations of up to
0.10" are possible.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest, and Kittitas Valley.
* WHEN...Until noon PST today.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday morning commute.
From: Jan 29, 2026 10:37
Until: Jan 29, 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
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 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 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 possible. Total snow accumulations between 20
and 30 inches possible.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest, Northern Blue Mountains of Oregon, East Slopes of the
Oregon Cascades, and Northwest Blue Mountains.
* WHEN...From 4 AM Tuesday to 4 PM PST Thursday.
* IMPACTS...Heavy snowfall and very low visibility will create
extremely dangerous driving conditions. Gusty winds could bring
down tree branches.
* ADDITIONAL DETAILS...Total snow accumulations of 24-30 inches for
Washington Cascades, 17-25 inches for Oregon Cascades, and 10-20
inches for the Northwest Blue Mountains will be possible. Heaviest
snow expected Tuesday morning through Tuesday Evening.
From: Jan 05, 2026 10:52
Until: Jan 06, 2026 00:00
Freezing Fog Advisory
* WHAT...Visibility half mile or less in freezing fog.
* WHERE...Kittitas Valley and Lower Slopes of the Eastern Washington
Cascades Crest.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Less than quarter visibility recorded along
I-90 and I-82 in the Kittitas region through Ellensburg and South
Cle Elum. Interstate cameras confirm obscure fog with freezing
temperatures impacting these areas and is expected to last through
the morning hours. Slick conditions are possible on roads and side
walks.
From: Jan 05, 2026 11:05
Until: Jan 05, 2026 18:00
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations between 20
and 30 inches possible.
* WHERE...Upper and Lower Slopes of the Eastern Washington Cascades
Crest, Northern Blue Mountains of Oregon, East Slopes of the
Oregon Cascades, and Northwest Blue Mountains.
* WHEN...From late Monday night through Thursday afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Heavy snowfall and very low
visibility will create extremely dangerous driving conditions.
* ADDITIONAL DETAILS...Total snow accumulations of 24-30 inches for
Washington Cascades, 17-25 inches for Oregon Cascades, and 10-20
inches for the Northwest Blue Mountains will be possible.
From: Jan 05, 2026 06:19
Until: Jan 05, 2026 15:00
Special Weather Statement
Patchy dense fog will reduce visibilities to one mile or less in
areas along the I-82 corridor near Yakima. Be advised if
traveling in this area, use low beam headlights, and leave extra
distance between your vehicle and those around you.
From: Jan 04, 2026 17:45
Until: Jan 04, 2026 19:30
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...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. Slippery conditions could occur on portions of I-82,
I-90, SR 14 and SR 125.
From: Jan 01, 2026 20:53
Until: Jan 02, 2026 12:00
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations of a light
glaze to one-tenth of an inch.
* WHERE...Simcoe Highlands.
* WHEN...Until 4 AM PST Friday.
* IMPACTS...Difficult travel conditions are possible.
From: Jan 01, 2026 15:17
Until: Jan 01, 2026 23:30
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...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
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
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations of a light
glaze to one-tenth of an inch.
* WHERE...Simcoe Highlands.
* WHEN...From 4 AM Thursday to 4 AM PST Friday.
* IMPACTS...Difficult travel conditions are possible.
From: Jan 01, 2026 06:49
Until: Jan 01, 2026 15:15
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
