| 23.0 | the Nooksack River will cause major near record flooding from near Ferndale downstream to the mouth. Deep and swift flood waters will inundate residential areas...farm lands...and roads. The flood may overtop levees and failures are possible. In addition...flood waters could overflow and flood the Sumas drainage. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Nooksack River Basin. | | 21.0 | the Nooksack River will cause widespread flooding from near Ferndale downstream to the mouth...with swift waters in residential areas and over farm lands and roads. Erosion may damage some river banks. | | 19.0 | the Nooksack River will cause shallow flooding of low pasture lands along the river from near Ferndale downstream to the mouth. | | 17.0 | feet...the RIVER BEGINS SPILLING OVER ITS BANKS INTO LOW PASTURE LANDS. |
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1) 31.23 ft on 02/10/1951
2) 30.60 ft on 12/30/1917
3) 30.40 ft on 02/27/1932
4) 30.20 ft on 01/25/1935
5) 28.60 ft on 10/26/1945
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1) 0.00 ft on 11/10/1987
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