Flood Watch

Flood Watch
National Weather Service Pendleton OR
249 AM PST Mon Dec 8 2025

WAZ026-027-521>523-091515-
/O.NEW.KPDT.FA.A.0002.251208T1500Z-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 Cle Elum, Ellensburg, Sunnyside,
Bickleton, Roslyn, Yakima, Cliffdell, Easton, Goldendale, Naches,
Thorp, Toppenish, and Appleton
249 AM PST Mon Dec 8 2025

...FLOOD WATCH IN EFFECT FROM 7 AM PST THIS MORNING THROUGH FRIDAY
MORNING...

* WHAT...Flooding caused by excessive rainfall is 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...From 7 AM PST this morning through Friday morning. Area
  rivers and streams are expected to reach their highest levels
  between Wednesday and Friday.

* 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.

* ADDITIONAL DETAILS...
  - An atmospheric river moving into the region this week is
    expected to make for heavy rainfall along the Cascades.
    Runoff from this rain, combined with lowland rain, will make
    for rises along area rivers, including the Klickitat, Naches,
    and Yakima Rivers.
  - 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.

&&

$$

CE

Flood Watch
National Weather Service Missoula MT
1214 PM MST Sun Dec 7 2025

IDC035-049-081915-
/O.NEW.KMSO.FA.A.0009.251209T0000Z-251211T1200Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clearwater-Idaho-
1214 PM MST Sun Dec 7 2025 /1114 AM PST Sun Dec 7 2025/

...FLOOD WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH THURSDAY
MORNING...

* WHAT...Flooding caused by rain and snowmelt is possible.

* WHERE...Clearwater and Idaho County, Idaho.

* WHEN...From Monday afternoon through Thursday morning.

* 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. By Thursday,
    significant precipitation totals are forecast, with 2 to 4
    inches in the valleys and 4 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 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.

&&

$$