Wynoochee River near Montesano, WA
River level and flood forecast · Grays Harbor County
The river is 15.4 ft below flood stage (42.5 ft).
Forecast to hold near 27.1 ft through Mon, Oct 19, 11 PM.
Flow: 222 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:27 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Wynoochee River near Montesano to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 44.5 ft |
| Moderate flood stage | 43.5 ft |
| Flood stage | 42.5 ft |
| Action stage | 39 ft |
| Record crest (December 10, 1956) | 45.02 ft |
What floods at each level
From the National Weather Service, highest first.
- 44.5 ftthe Wynoochee River will cause major flooding in the Wynoochee Valley...with deep and swift flood waters inundating farms...residences...and roads. Damage from erosion could be significant. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Wynoochee River Basin.
- 43.5 ftthe Wynoochee River will flood much of the low area of the Wynoochee Valley with moderate flooding. Deep and swift flood waters will inundate farms...residential areas...and roads.
- 42.5 ftthe Wynoochee River will flood much of the low area of the Wynoochee Valley...with deep and swift flood waters inundating farms...residential areas...and roads.
- 39.5 ftthe Wynoochee River will locally spill over its banks into fields in the Wynoochee Valley. Flooding threatens residences and roads upper part of river.
Highest crests on record
- 45.02 ft — December 10, 1956
- 20.54 ft — December 10, 1956
- 20.21 ft — March 19, 1997
- 20.19 ft — January 19, 1968
- 20.12 ft — January 16, 1961
Recent crests: 16.18 ft (January 5, 2015) · 13.85 ft (March 6, 2014) · 13.4 ft (November 19, 2012) · 10.81 ft (November 23, 2011) · 15.9 ft (December 12, 2010)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MNSW1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.