Dense Fog Advisory
URGENT - WEATHER MESSAGE
National Weather Service Boise ID
505 AM PST Wed Dec 10 2025
ORZ062-101800-
/O.NEW.KBOI.FG.Y.0011.251210T1400Z-251210T1800Z/
Baker County-
Including the cities of Baker
505 AM PST Wed Dec 10 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Baker County.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
LC
Wind Advisory
URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1041 PM PST Tue Dec 9 2025
ORZ041-044-507-508-510-WAZ024-027>029-521-110000-
/O.CON.KPDT.WI.Y.0031.251210T1400Z-251211T1500Z/
Eastern Columbia River Gorge of Oregon-Lower Columbia Basin of
Oregon-Foothills of the Northern Blue Mountains of Oregon-
Foothills of the Southern Blue Mountains of Oregon-North Central
Oregon-Eastern Columbia River Gorge of Washington-Yakima Valley-
Lower Columbia Basin of Washington-Foothills of the Blue
Mountains of Washington-Simcoe Highlands-
Including the cities of Dayton, The Dalles, Hermiston, Pilot
Rock, Ione, Prosser, Walla Walla, Moro, Boardman, Dufur, Maupin,
Naches, Fossil, Tri-Cities, White Salmon, Yakima, Waitsburg,
Bickleton, Connell, Pendleton, Heppner, Goldendale, Condon,
Athena, Sunnyside, Toppenish, and Arlington
1041 PM PST Tue Dec 9 2025
...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM WEDNESDAY TO 7 AM PST
THURSDAY...
* WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph
expected.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
Eastern Columbia River Gorge of Oregon and Washington, Lower
Columbia Basin of Oregon and Washington, North Central Oregon,
Yakima Valley, and Simcoe Highlands.
* WHEN...From 6 AM Wednesday to 7 AM PST Thursday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
&&
$$
PDT
Flood Watch
Flood Watch
National Weather Service Pendleton OR
320 AM PST Wed Dec 10 2025
WAZ026-027-521>523-102330-
/O.CON.KPDT.FA.A.0002.000000T0000Z-251212T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kittitas Valley-Yakima Valley-Simcoe Highlands-Upper Slopes of
the Eastern Washington Cascades Crest-Lower Slopes of the Eastern
Washington Cascades Crest-
Including the cities of Naches, Goldendale, Yakima, Cliffdell,
Thorp, Toppenish, Cle Elum, Appleton, Bickleton, Ellensburg,
Roslyn, Sunnyside, and Easton
320 AM PST Wed Dec 10 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central and south central Washington,
including the following areas, in central Washington, Kittitas
Valley, Simcoe Highlands and Yakima Valley. In south central
Washington, Lower Slopes of the Eastern Washington Cascades Crest
and Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...Through Friday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Low-water
crossings may be flooded. Area creeks and streams are running high
and could flood with more heavy rain.
* ADDITIONAL DETAILS...
- Flooding has already been reported along the Naches and
Yakima Rivers. More rain is expected to occur through the
week, with heavy rain expected to fall over the Cascades the
remainder of Tuesday into Wednesday.
- Go to http://www.weather.gov/safety/flood for flood safety
tips and resources.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
PDT
Flood Watch
National Weather Service Missoula MT
1253 PM MST Mon Dec 8 2025
.Near-record precipitation is possible this week as two Atmospheric
Rivers will move through the region. The first one arrives today and
continues through Tuesday, followed by a second, stronger one
Tuesday night through Thursday. Between 4 and 10 inches of moderate
to heavy rain are expected in the mountains. For some locations,
near record rainfall amounts are possible. The rain, falling on the
current snowpack, combined with mild nighttime temperatures will
increase snowmelt. Flows in rivers may increase quickly and reach
critical levels.
IDC035-049-092115-
/O.EXT.KMSO.FA.A.0009.251209T0000Z-251212T0000Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clearwater-Idaho-
1253 PM MST Mon Dec 8 2025 /1153 AM PST Mon Dec 8 2025/
...FLOOD WATCH NOW IN EFFECT FROM 5 PM MST /4 PM PST/ THIS AFTERNOON
THROUGH THURSDAY AFTERNOON...
* WHAT...Flooding caused by rain and snowmelt continues to be
possible.
* WHERE...Portions of central and panhandle Idaho, including the
following counties, in central Idaho, Idaho. In panhandle Idaho,
Clearwater.
* WHEN...From 5 PM MST /4 PM PST/ this afternoon through Thursday
afternoon.
* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Storm drains and
ditches may become clogged with debris. People, structures, and
roads located below steep slopes, in canyons, and near the mouths
of canyons may be at risk from landslides.
* ADDITIONAL DETAILS...
- A prolonged atmospheric river is expected to bring periods of
heavy rain to Idaho and Clearwater Counties, Monday night
through Thursday. Rising snow levels will lead to a rain on
snow event for elevations below 7,000 feet Monday night into
Tuesday morning. The precipitation rates will briefly
decrease Tuesday afternoon, before a second surge of moisture
arrives Tuesday night into Thursday morning with snow levels
rising to near 8,000 feet. By Thursday, significant
precipitation totals are forecast, with 2 to 5 inches in the
valleys and 5 to 10 inches in the mountains, with locally
higher totals over mountain crests. Landslides in areas of
steep terrain and minor flooding in urban and poor drainage
areas is possible.
- https://www.weather.gov/mso/hydrology
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop. Monitor basements for water
intrusion. You may want to preemptively shovel snow away from your
home.
&&
$$
Hydrologic Outlook
Hydrologic Outlook
MTC039-063-081-102100-
Hydrologic Outlook
National Weather Service Missoula MT
122 PM MST Mon Dec 8 2025
...NEAR RECORD HEAVY PRECIPITATION TO BRING SMALL STREAM RISES, RISK
FOR ROCK AND LANDSLIDES, AND MINOR FLOODING THIS WEEK...
A prolonged atmospheric river is expected to bring periods of heavy
rain for western Montana Monday night through Thursday. Rising snow
levels will lead to a rain-on-snow event for elevations below 7,000
feet Monday night into Tuesday morning. Precipitation rates will
briefly decrease Tuesday afternoon before a second surge of moisture
arrives Tuesday night into Thursday. During the second surge, snow
levels will be lower initially, ranging from 3,500 to 5,000 feet
with some slushy snow accumulations across northwest Montana
valleys, but will then rise to 6,000 to 8,000 feet Wednesday into
Thursday. By Thursday, significant precipitation totals are
forecast, with 1 to 4 inches in the valleys and 5 to 8 inches in the
mountains, with locally higher totals over mountain crests.
Landslides in areas of steep terrain and minor flooding in urban and
poor-drainage areas are possible. Storm drains and ditches may
become clogged with debris. You may want to preemptively shovel snow
away from your homes. Watch basements for moisture intrusion.
$$
