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Severe · Flood WatchActive alert

Flood Watch issued September 12 at 12:00PM PDT until September 13 at

Affecting Okanogan Highlands; Wenatchee Area; Okanogan Valley; Waterville Plateau; Central Chelan County; Western Chelan County; Western Okanogan County

In effect until: Sep 13, 2026, 8:00 PM

Okanogan Highlands; Wenatchee Area; Okanogan Valley; Waterville Plateau; Central Chelan County; Western Chelan County; Western Okanogan County

Possible impact zone; conditions develop through 8:00 PM.

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.

Read the original bulletin (official text)
* WHAT...Debris and ash flows, rock slides, and minor flooding caused
by excessive rainfall is possible, especially near burn scars.

* WHERE...Portions of Central and North Central Washington, including
the following areas and counties, in Central Washington, Waterville
Plateau. In North Central Washington, Central Chelan County,
Okanogan Highlands, Okanogan Valley, Wenatchee Area, Western Chelan
County and Western Okanogan County.

* WHEN...From late tonight through Sunday evening.

* IMPACTS...Excessive runoff may result in debris and ash flows over
burn scars in steep terrain.  Rock slides will be possible.  Minor
flooding in urban areas where there is poor drainage. Storm drains
and ditches may become clogged with debris.

* ADDITIONAL DETAILS...
- A slow moving storm system will bring persistent bands of rain
through Central Washington.  Rain intensities will vary from
light to moderate.  Rainfall amounts will range between 0.50 and
1.50 inches with locally around 2.00 inches in southern Chelan
County
- This includes but is not limited to the following burn scars:
Modrite, Kaiser Canyon, Sinlahekin, Chelan Falls, Little Giant,
Sisi, and Pioneer.
- http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™