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Snoqualmie River at Snoqualmie Falls

Critical Stages
Action
Flood
Moderate
Major

Latest Observation

Updated: 6:30 AM PST 12/6/25

Status: No Flooding

Stage: 3.77 ft

Flow: 6.7 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
10 AM 12/6 4.19574 7
4 PM 12/6 4.63503 7.3
10 PM 12/6 4.5062 7.2
4 AM 12/7 4.06611 6.9
10 AM 12/7 3.95151 6.8
4 PM 12/7 5.13859 7.6
10 PM 12/7 6.35926 8.3
4 AM 12/8 6.44833 8.3
10 AM 12/8 8.65224 9.4
4 PM 12/8 15.09195 12
10 PM 12/8 23.78711 14.6
4 AM 12/9 32.04433 16.4
10 AM 12/9 30.10484 16.1
4 PM 12/9 24.5912 14.8
10 PM 12/9 20.92828 13.8
4 AM 12/10 25.89275 15.2
10 AM 12/10 27.428 15.5
4 PM 12/10 32.37591 16.4
10 PM 12/10 26.85944 15.4
4 AM 12/11 27.39084 15.5
10 AM 12/11 23.63932 14.6
4 PM 12/11 26.79224 15.4
10 PM 12/11 22.64776 14.3
4 AM 12/12 21.68449 14
10 AM 12/12 18.00402 12.9
4 PM 12/12 15.19424 12
10 PM 12/12 14.89093 11.9
4 AM 12/13 14.61152 11.8
10 AM 12/13 13.27535 11.3
4 PM 12/13 11.75385 10.7
10 PM 12/13 10.69698 10.3
4 AM 12/14 9.77542 9.9
10 AM 12/14 8.75172 9.5
4 PM 12/14 7.81915 9
10 PM 12/14 7.18324 8.7
4 AM 12/15 7.15021 8.7
TimeStage (ft)Flow (kcfs)
7:30 AM 12/6 4.17 6.9
7:15 AM 12/6 4.06 6.9
7:00 AM 12/6 3.94 6.8
6:45 AM 12/6 3.87 6.7
6:30 AM 12/6 3.77 6.7
6:15 AM 12/6 3.73 6.6
6:00 AM 12/6 3.63 6.6
5:45 AM 12/6 3.58 6.5
5:30 AM 12/6 3.51 6.5
5:15 AM 12/6 3.44 6.4
5:00 AM 12/6 3.41 6.4
4:45 AM 12/6 3.38 6.4
4:30 AM 12/6 3.35 6.4
4:15 AM 12/6 3.33 6.3
4:00 AM 12/6 3.3 6.3
3:45 AM 12/6 3.27 6.3
3:30 AM 12/6 3.26 6.3
3:15 AM 12/6 3.25 6.3
3:00 AM 12/6 3.25 6.3
2:45 AM 12/6 3.25 6.3
2:30 AM 12/6 3.24 6.3
2:15 AM 12/6 3.22 6.3
2:00 AM 12/6 3.21 6.2
1:45 AM 12/6 3.21 6.2
1:30 AM 12/6 3.21 6.2
1:15 AM 12/6 3.2 6.2
1:00 AM 12/6 3.18 6.2
12:45 AM 12/6 3.15 6.2
12:30 AM 12/6 3.15 6.2
12:15 AM 12/6 3.13 6.2
Hydrograph for Snoqualmie River at Snoqualmie Falls
70000' - the Snoqualmie River will cause severe near record flooding from the town of Snoqualmie downstream through Fall City. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds to a phase 4 flood in the King County flood system.
55000' - the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
41000' - the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
30000' - the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
20000' - the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
12000' - the Snoqualmie River will spill over its banks between the town of Snoqualmie and Fall City...covering pasture lands and several roads along the river. This river level on the Snoqualmie corresponds roughly to a phase 2 flood in the King County flood system.
DateStage (ft)
Nov 24, 1990 21.55
Jan 7, 2009 20.97
Nov 7, 2006 20.31
Nov 23, 1959 19.78
Nov 24, 1986 19.35
Dec 2, 1977 18.88
Jan 5, 2015 18.62
Dec 3, 1975 18.57
Dec 9, 2015 18.53
Feb 9, 1996 18.52
Nov 17, 2015 18.31
Jan 18, 1975 18.04
Nov 9, 1989 17.55
Nov 20, 1962 17.35
Jan 18, 2005 17.33
Dec 26, 1980 17.26
Jan 5, 1969 17.1
Jan 16, 2011 17.08
Oct 16, 1988 17.03
Jan 25, 1984 16.97

Data provided by the National Weather Service.