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Nooksack River at Ferndale

Critical Stages
15' - Action
18' - Flood
20.5' - Moderate
23' - Major

Latest Observation

Updated: 3:30 PM PST 12/5/25

Status: No Flooding

Stage: 5.96 ft

Flow: 2.89 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
10 PM 12/5 6.24 3.19
4 AM 12/6 7.43 4.53
10 AM 12/6 9.81 7.63
4 PM 12/6 11.94 10.8
10 PM 12/6 12.34 11.4
4 AM 12/7 11.91 10.8
10 AM 12/7 11.11 9.53
4 PM 12/7 10.36 8.41
10 PM 12/7 10.07 7.99
4 AM 12/8 10.15 8.11
10 AM 12/8 10.2 8.18
4 PM 12/8 10.27 8.28
10 PM 12/8 11.68 10.4
4 AM 12/9 13.67 13.6
10 AM 12/9 14.98 15.9
4 PM 12/9 15.51 16.9
10 PM 12/9 15.46 16.8
4 AM 12/10 15.22 16.4
10 AM 12/10 15.46 16.8
4 PM 12/10 16.34 18.5
10 PM 12/10 17.26 20.6
4 AM 12/11 18 22.3
10 AM 12/11 18.35 23.2
4 PM 12/11 18.29 23.1
10 PM 12/11 17.87 22
4 AM 12/12 17.28 20.6
10 AM 12/12 16.68 19.2
4 PM 12/12 16.2 18.2
10 PM 12/12 15.89 17.6
4 AM 12/13 15.88 17.6
10 AM 12/13 15.92 17.6
4 PM 12/13 15.79 17.4
10 PM 12/13 15.43 16.7
4 AM 12/14 14.85 15.7
10 AM 12/14 14.1 14.4
4 PM 12/14 13.26 13
10 PM 12/14 12.52 11.7
4 AM 12/15 12.05 11
TimeStage (ft)Flow (kcfs)
4:30 PM 12/5 5.96 2.89
4:15 PM 12/5 5.96 2.89
4:00 PM 12/5 5.97 2.9
3:45 PM 12/5 5.97 2.9
3:30 PM 12/5 5.96 2.89
3:15 PM 12/5 5.96 2.89
3:00 PM 12/5 5.96 2.89
2:45 PM 12/5 5.95 2.88
2:30 PM 12/5 5.96 2.89
2:15 PM 12/5 5.95 2.88
2:00 PM 12/5 5.95 2.88
1:45 PM 12/5 5.94 2.87
1:30 PM 12/5 5.94 2.87
1:15 PM 12/5 5.94 2.87
1:00 PM 12/5 5.95 2.88
12:45 PM 12/5 5.94 2.87
12:30 PM 12/5 5.94 2.87
12:15 PM 12/5 5.94 2.87
12:00 PM 12/5 5.95 2.88
11:45 AM 12/5 5.94 2.87
11:30 AM 12/5 5.95 2.88
11:15 AM 12/5 5.95 2.88
11:00 AM 12/5 5.94 2.87
10:45 AM 12/5 5.93 2.86
10:30 AM 12/5 5.94 2.87
10:15 AM 12/5 5.94 2.87
10:00 AM 12/5 5.94 2.87
9:45 AM 12/5 5.93 2.86
9:30 AM 12/5 5.94 2.87
9:15 AM 12/5 5.94 2.87
Hydrograph for Nooksack River at Ferndale
23' - the Nooksack River will cause major near record flooding from near Ferndale downstream to the mouth, overtopping levees on both sides of the river and flooding roadways on the Lummi Peninsula including Hexton Way. Deep and swift flood waters will inundate residential areas...farm lands...and roads. 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.
22' - the Nooksack River will overflow levees and banks along the east bank of the river from Hovander Park downstream to Marietta, causing widespread flooding from near Ferndale downstream to the mouth...with swift waters in residential areas and over farmlands and roads. Erosion may damage some river banks. Flooding within the City of Ferndale affects Main Street in the vicinity of the Whatcom Transportation Authority Station.
20.5' - the Nooksack River will overflow levees and banks along the east bank of the river from Hovander Park downstream to Marietta, causing 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.
20' - the river will flood additional areas within the City of Ferndale including low-lying residential areas and roads including Washington Street, Portal Way and Second Avenue.
18' - the river begins overtopping its banks within the City of Ferndale flooding low-lying areas within the City and low pasture lands along the river from near Ferndale downstream to the mouth.
17' - the Nooksack River will overtop levees along Bertrand Creek and near Marine Drive, causing shallow flooding of low pasture lands along the river and additional roadways within the floodplain including Slater Road.
16' - the river begins spilling over its banks into low pasture lands flooding some roadways that are not protected by levees including Marine Drive and Ferndale Road.
DateStage (ft)
Feb 10, 1951 31.23
Dec 30, 1917 30.6
Feb 27, 1932 30.4
Jan 25, 1935 30.2
Oct 26, 1945 28.6
Dec 12, 1921 28.15
Nov 4, 1955 27.23
Jan 16, 1961 26.38
Apr 30, 1959 26.21
Nov 27, 1949 25.55
Nov 20, 1962 25.15
Nov 27, 1963 24.37
Dec 10, 1956 24.24
Nov 23, 1959 23.84
Nov 16, 2021 23.81
Nov 10, 1990 23.56
Nov 19, 1954 23.3
Jan 31, 1965 22.98
Jan 8, 2009 22.76
Feb 1, 1953 22.61

Data provided by the National Weather Service.