| 22.0 | the Skykomish River will cause severe...near record flooding from Index downstream to Monroe. The river will flood many homes...cover much of the farmland...close most roads and overtop most dikes. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 22 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program. | | 21.0 | the Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie River confluence. Deep and swift flood waters will inundate roads...residential areas...and farm land. Extensive bank erosion is likely. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 21 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program. | | 19.0 | the Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will inundate portions of downtown Sultan...most roads and the Tualco Valley area near Monroe. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 19 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program. | | 17.0 | the Skykomish River will cause flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will cover numerous roads...including Ben Howard Rd...Index-Galena Rd and Tualco Loop Rd. Flooding in the town of Sultan will begin. A stage of 17 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program. | | 16.0 | the Skykomish River will cause minor flooding of low pasture lands and some roads along the river...including Ben Howard road...Index-Galena Rd and Tualco Loop Rd. A stage of 16 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program. | | 15.0 | the Skykomish River will cause minor flooding of low pasture lands and low lying roads...including Index-Galena Rd and Tualco Loop Rd. A stage of 15 feet on the Skykomish River corresponds to a Phase 2 in the Snohomish County flood program. |
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1) 23.94 ft on 11/06/2006
2) 22.49 ft on 11/24/1990
3) 21.34 ft on 12/26/1980
4) 21.28 ft on 12/21/1933
5) 21.01 ft on 11/10/1990
6) 20.73 ft on 10/20/2003
7) 20.70 ft on 02/26/1932
8) 20.24 ft on 11/29/1995
9) 20.20 ft on 11/23/1959
10) 20.18 ft on 12/15/1959
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1) 2.70 ft on 12/01/1936
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