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Tolt River near Carnation

Critical Stages
Action
Flood
Moderate
Major

Latest Observation

Updated: 3:15 AM PST 12/6/25

Status: No Flooding

Stage: 0.749 ft

Flow: 6 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
10 AM 12/6 0.84417 6.1
4 PM 12/6 0.82941 6.1
10 PM 12/6 0.80834 6.1
4 AM 12/7 0.77079 6
10 AM 12/7 0.79978 6.1
4 PM 12/7 1.13006 6.5
10 PM 12/7 1.19764 6.6
4 AM 12/8 1.1449 6.5
10 AM 12/8 1.71556 7.2
4 PM 12/8 4.2792 9
10 PM 12/8 6.60611 10.2
4 AM 12/9 7.09398 10.4
10 AM 12/9 6.44625 10.1
4 PM 12/9 5.23935 9.6
10 PM 12/9 5.22283 9.5
4 AM 12/10 5.70474 9.8
10 AM 12/10 6.4081 10.1
4 PM 12/10 6.16939 10
10 PM 12/10 5.96757 9.9
4 AM 12/11 5.63864 9.8
10 AM 12/11 5.46471 9.7
4 PM 12/11 5.02829 9.5
10 PM 12/11 4.43688 9.1
4 AM 12/12 3.82725 8.8
10 AM 12/12 2.69964 8
4 PM 12/12 2.55365 7.9
10 PM 12/12 3.02848 8.3
4 AM 12/13 2.59557 7.9
10 AM 12/13 1.88807 7.3
4 PM 12/13 1.49768 7
10 PM 12/13 1.2866 6.7
4 AM 12/14 1.17404 6.6
10 AM 12/14 1.09747 6.5
4 PM 12/14 1.04404 6.4
10 PM 12/14 1.01576 6.4
4 AM 12/15 1.05047 6.4
TimeStage (ft)Flow (kcfs)
3:15 AM 12/6 0.749 6
3:00 AM 12/6 0.756 6
2:45 AM 12/6 0.762 6
2:30 AM 12/6 0.769 6
2:15 AM 12/6 0.775 6
2:00 AM 12/6 0.775 6
1:45 AM 12/6 0.789 6
1:30 AM 12/6 0.795 6.1
1:15 AM 12/6 0.802 6.1
1:00 AM 12/6 0.809 6.1
12:45 AM 12/6 0.816 6.1
12:30 AM 12/6 0.823 6.1
12:15 AM 12/6 0.837 6.1
12:00 AM 12/6 0.844 6.1
11:45 PM 12/5 0.851 6.1
11:30 PM 12/5 0.858 6.1
11:15 PM 12/5 0.872 6.2
11:00 PM 12/5 0.879 6.2
10:45 PM 12/5 0.886 6.2
10:30 PM 12/5 0.901 6.2
10:15 PM 12/5 0.916 6.2
10:00 PM 12/5 0.923 6.2
9:45 PM 12/5 0.938 6.3
9:30 PM 12/5 0.946 6.3
9:15 PM 12/5 0.961 6.3
9:00 PM 12/5 0.968 6.3
8:45 PM 12/5 0.982 6.3
8:30 PM 12/5 0.997 6.3
8:15 PM 12/5 1 6.3
8:00 PM 12/5 1.01 6.4
Hydrograph for Tolt River near Carnation
10500' - the Tolt River will cause severe flooding. Dangerously deep and quick flood waters will cover roads and driveways...with some homes flooded. The river will likely overtop some levees. Erosion could cause serious damage and channel changes may occur. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Tolt River Basin. This river level on the Tolt corresponds to a phase 4 flood in the King County flood system.
8500' - the Tolt River will cause major flooding. Deep and quick flood waters will cover roads and driveways...cutting off access to many homes. Levees may overtop and channel changes may occur. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Tolt River Basin. This river level on the Tolt corresponds to a phase 4 flood in the King County flood system.
5000' - the Tolt River will flood Tolt River Rd NE and many driveways. Some homes in the San Souci area could be inaccessible due to deep and quick flood waters. This river level on the Tolt corresponds to a phase 3 flood in the King County flood system.
3500' - the Tolt River will spill over its banks with water over 353rd Ave NE and some driveways in the San Souci area. This river level on the Tolt corresponds to a phase 2 flood in the King County flood system.
DateStage (ft)
Dec 15, 1959 13.04
Feb 9, 1951 12.92
Jan 8, 2009 12.59
Dec 11, 1955 12.52
Jan 7, 1945 12.14
Oct 31, 1942 11.95
Nov 24, 1990 11.62
Mar 4, 1950 11.54
Apr 18, 1938 11.51
Jan 5, 1969 11.34
Nov 19, 1962 11.3
Feb 1, 2020 11.3
Nov 12, 2008 11.29
Dec 15, 1999 11.28
Dec 2, 1943 11.24
Nov 29, 1995 11.19
Jan 23, 1953 11.19
Jan 5, 2015 11.16
Dec 9, 1953 11.15
Oct 20, 2003 11.11

Data provided by the National Weather Service.